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<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Custom Font Example</title> <style> /* 使用@font-face规则定义字体 */ @font-face { font-family: 'AkalTun'; /* 定义一个字体名 */ src: url('https://akaltun.cn/1/akaltun.ttf') format('truetype'); /* 指定字体文件和格式 */ } /* 应用自定义字体到body,也可以应用到其他元素 */ body { font-family: 'AkalTun', sans-serif; /* 将字体应用到body,如果字体加载失败则回退到sans-serif */ } </style> </head> <body> <div id="container"> <h1>欢迎来到我的网站ئۇيغۇرچە</h1> <p>这里是使用自定义字体的文本。</p> <!-- 其他内容 --> </div> </body> </html>
Mysql外链约束规则
java的mvc三层架构分别是: View(界面层),Service(业务逻辑层),DAO(数据访问层) V:View 网页视图,为用户提供能够看到并且使用的界面,与用户直接进行交互。 M:Model,业务模型,处理业务 C:Controller,控制器,处理请求,调用模型和视图 dao层负责对数据进行直接操控,最底层 service层负责对传递过来的参数验证,以及其他逻辑验证操作。验证完毕访问dao层进行数据操控 servlet层负责接收参数,然后调用service层进行处理 三个层分工合作,有利于后期的功能维护,那层出了问题就去处理哪层
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> <style> * { padding: 0; margin: 0; } li { list-style-type: none; } a { text-decoration: none; } .nav-box { width: 980px; height: 90px; margin: 20px auto; display: flex; align-items: center; } .right { flex: 1; margin-left: 20px; } .right-top-tag li { display: inline-block; font-size: 12px; border-radius: 3px 3px 0 0; overflow: hidden; } .right-top-tag li a { color: #666; padding: 5px 15px; display: inline-block; } .right-search { margin-top: -4px; display: flex; } .right-search input { border: 3px solid #F37B03; width: 100%; height: 27px; background: url("./images/tb/search.jpg") no-repeat 10px; flex: 1; outline: none; padding-left: 30px; color: #666; } .right-search .button { flex-shrink: 1; width: 133px; height: 33px; background: url("images/tb/button.jpg") no-repeat; border: none; } .right-search .tip { height: 33px; } .right-search .tip p { line-height: 16px; font-size: 12px; margin-left: 10px; color: #666; } .right-title-nav ul li { display: inline-block; margin-top: 6px; } .right-title-nav ul li a { color: #555; font-size: 12px; margin-right: 12px; } </style> </head> <body> <div class="nav-box"> <div class="left"> <img src="./images/tb/logo.jpg" alt=""> </div> <div class="right"> <div class="right-top-tag"> <ul> <li style="background-color: #F37B03;"><a style="color: #fff;" href="#"> 宝贝 </a></li> <li><a href="#"> 天猫<span style="color: #f79a3d;">(淘宝商城)</span> </a></li> <li><a href="#"> 店铺 </a></li> </ul> </div> <div class="right-search"> <input type="text"> <button class="button"></button> <div class="tip"> <p>高级搜索</p> <p>使用帮助</p> </div> </div> <div class="right-title-nav"> <ul> <li> <a href="#">长裙</a> </li> <li> <a href="#">时尚包包</a> </li> <li> <a href="#">新款连衣裙</a> </li> <li> <a href="#">中老年夏服</a> </li> <li> <a href="#">新款连衣裙</a> </li> <li> <a href="#">中老年夏服</a> </li> <li> <a href="#">更多>></a> </li> </ul> </div> </div> </div> </body> </html>
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>Document</title> <style> * { padding: 0; margin: 0; } div { box-sizing: border-box; color: #DE8786; } .mainbox { width: 980px; margin: 0 auto; } .nav { background-color: #FE9AB5; } .nav .item { display: inline-block; line-height: 46px; padding: 0 30px; color: #fff; } .banner { text-align: center; } .frombox { background: url("./images/content_bg.jpg"); padding: 0 180px; } .step { padding: 10px 0; } .step .tip { font-size: 20px; line-height: 42px; float: left; } .userinfo .title { border-bottom: 1px solid #FE9AB5; line-height: 42px; margin-bottom: 10px; } input { border: 1px solid #FE9AB5; } .tableinput { padding: 5px 30px; } .tableinput tr { margin: 10px 0; } .tableinput .info { width: 220px; height: 22px; } .tableinput tr .titles { text-align: right; } .tableinput select { width: 168px; border-color: #FE9AB5; color: #FE9AB5; } </style> </head> <body> <div class="content"> <div class="logo mainbox"> <img src="./images/logo.jpg" alt=""> </div> <div class="nav"> <ul class="mainbox"> <li class="item">首页</li> <li class="item">会员</li> <li class="item">活动</li> <li class="item">直播</li> <li class="item">视频</li> <li class="item" style="background-color: #FE9AB5;">注册</li> </ul> </div> <div class="banner"> <img src="./images/banner.jpg" alt=""> </div> <div class="frombox mainbox"> <div class="step"> <span class="tip">注册步骤:</span> <img src="./images/step.jpg" alt=""> </div> <div class="userinfo"> <p class="title">您的账号信息:</p> <table class="tableinput"> <tr> <td class="titles">注册方式:</td> <td><input type="radio"> E-main注册 <input type="radio"> 手机号码注册</td> </tr> <tr> <td>注册邮箱:</td> <td><input class="info" type="email"></td> </tr> <tr> <td class="titles">注册手机:</td> <td><input class="info" type="email"></td> </tr> <tr> <td class="titles">登录密码:</td> <td><input class="info" type="email"></td> </tr> <tr> <td class="titles">昵称:</td> <td><input class="info" type="email"></td> </tr> </table> </div> <div class="userinfo"> <p class="title">您的个人信息:</p> <table class="tableinput"> <tr> <td class="titles">性别:</td> <td><input type="radio"> 男 <input type="radio"> 女</td> </tr> <tr> <td class="titles">学历:</td> <td><select> <option value="初中">初中</option> <option value="高中">高中</option> <option value="大专">大专</option> <option value="本科">本科</option> </select></td> </tr> <tr> <td class="titles">所在城市:</td> <td><select> <option value="北京">北京</option> <option value="江西">江西</option> <option value="四川">四川</option> </select></td> </tr> </table> </div> </div> </div> </body> </html>
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>Document</title> <style> body { background-color: #EBEBEB; } .content { background: url("images/form_bg.jpg"); width: 1430px; height: 717px; margin: 0 auto; position: relative; } .frombox { width: 700px; height: 540px; position: absolute; top: 160px; left: 700px; } .title { text-align: center; font-size: 24px; } .line { padding: 7px 0; font-size: 15px; } .line input { height: 26px; width: 220px; } .line .tip { text-align: right; display: inline-block; width: 90px; } .line.color input { width: 120px; } .line.btn input { background-color: #93B518; color: #fff; width: 120px; height: 36px; border: 0; margin: 15px 28px; } </style> </head> <body> <div class="content"> <div class="frombox"> <h1 class="title">传智学员信息登记表</h1> <form action="" method="GET"> <div class="line"> <label class="tip">用户登录名:</label> <input type="text" name="username" value="mymail@163.com" readonly="readonly" disabled="disabled"> <label>(不能修改,只能查看)</label> </div> <div class="line"> <label class="tip">真实姓名:</label> <input type="text" name="name" placeholder="例如:王鹏" required pattern="^[\u4e00-\u9fa5]+$"> <label>(必须填写,只能输入汉字)</label> </div> <div class="line"> <label class="tip">真实年龄:</label> <input type="number" name="age" min="0" max="100" value="24" required placeholder="16-100"> <label>(必须填写)</label> </div> <div class="line"> <label class="tip">出生日期:</label> <input type="date" name="date" required> <label>(必须填写)</label> </div> <div class="line"> <label class="tip">电子邮箱:</label> <input type="email" name="email" placeholder="123456@qq.com" required> <label>(必须填写)</label> </div> <div class="line"> <label class="tip">身份证号:</label> <input type="text" name="idcard" required pattern="^[0-9]{17}[0-9Xx]$"> <label>(必须填写,能够以数字,字母x结尾的短身份证号)</label> </div> <div class="line"> <label class="tip">手机号码:</label> <input type="tel" name="tel" required> <label>(必须填写)</label> </div> <div class="line"> <label class="tip">个人主页:</label> <input type="url" name="myurl" placeholder="http://bk.notei.cn"> <label>(请选择网址)</label> </div> <div class="line color"> <label class="tip">幸运颜色:</label> <input type="color" name="luckcolor" value="#E2D546"> <label>(请选择你喜欢的颜色)</label> </div> <div class="line btn"> <input type="submit" value="提交"> <input type="reset" value="重置"> </div> </form> </div> </div> </body> </html>
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>Document</title> <style> * { margin: 0; padding: 0; } div { box-sizing: border-box; } body { background-color: #FFF9ED; } a { text-decoration: none; color: #333; } li { list-style-type: none; } .content { display: flex; flex-direction: column; justify-content: center; align-items: center; } .container { width: 980px; margin: 0 auto; height: 100px; } .nav { background: url("images/head_bg.jpg") repeat-x; height: 128px; width: 100%; } .nav li { float: left; } .nav .item a { display: inline-block; width: 120px; height: 128px; line-height: 64px; text-align: center; color: #fff; margin: 0 5px; font-size: 17px; } .nav .item a:hover { background: url("images/xuanfu.png") no-repeat; } .banner img { width: 100%; } .borbox { background-color: #EC6E47; padding: 10px 30px; height: auto; } .borbox ul { width: 100%; display: flex; padding: 10px; background-color: #fff; } .borbox ul li { flex: 1 0 0; height: 100%; margin: 0 3px; } .borbox ul li .flexbox { display: flex; } .borbox ul li div { background-color: #242424; color: #fff; } .borbox ul li .top { margin-bottom: 8px; } .borbox ul li .name { text-align: center; flex: 1 0 0; } .borbox ul .left .top .name { line-height: 169px; } .borbox ul .left .bottom .name { line-height: 137px; } .borbox ul .center .top { height: 117px; line-height: 117px; } .borbox ul .center .bottom { height: 189px; line-height: 189px; } .borbox ul .right .top { height: 313px; line-height: 313px; } .morebox { margin-top: 50px; text-align: left; height: auto; } .morebox>.title { display: inline-block; background-color: #EC6E47; color: #fff; padding: 10px 20px; font-size: 16px; font-weight: normal; } .morebox .list { display: flex; gap: 8px; background-color: #fff; padding: 10px; border: 1px solid #ccc; } .morebox .list li { flex: 1 0 0; border: 1px solid #ccc; padding-bottom: 15px; } .morebox .list li img { width: 100%; border-bottom: 1px solid #ccc; } .morebox .list li .title { text-align: center; width: 100%; color: #666; padding: 10px 0; font-size: 18px; } .morebox .list li .buybox { width: 80%; margin: 0 auto; background: url("./images/gouwu.jpg") no-repeat; background-color: #EC6E47; color: #fff; padding-left: 56px; height: 36px; line-height: 36px; } .footer { background-color: #111; width: 100%; color: #fff; padding: 50px 0; text-align: center; font-size: 14px; line-height: 29px; } </style> </head> <body> <div class="content"> <div class="nav"> <ul class="container"> <li><img src="./images/logo.png" alt="logo"></li> <li class="item"><a href="#">穿搭速递</a></li> <li class="item"><a href="#">时尚大片</a></li> <li class="item"><a href="#">星着装</a></li> <li class="item"><a href="#">时尚园</a></li> <li class="item"><a href="#">时尚专栏</a></li> <li class="item"><a href="#">会员/登录</a></li> </ul> </div> <div class="banner"> <img src="./images/banner.jpg" alt=""> </div> <div class="borbox container"> <ul> <li class="left"> <div class="top flexbox"> <img src="./images/pic01.jpg" alt=""> <p class="name">明星时尚</p> </div> <div class="bottom flexbox"> <img src="./images/pic02.jpg" alt=""> <p class="name">明星时尚</p> </div> </li> <li class="center"> <div class="top flexbox"> <img src="./images/pic03.jpg" alt=""> <p class="name">明星时尚</p> </div> <div class="bottom flexbox"> <img src="./images/pic04.jpg" alt=""> <p class="name">明星时尚</p> </div> </li> <li class="right"> <div class="top flexbox"> <img src="./images/pic05.jpg" alt=""> <p class="name">明星时尚</p> </div> </li> </ul> </div> <div class="morebox container"> <h2 class="title">潮流前沿/Tadil current</h2> <ul class="list"> <li> <img src="./images/match01.jpg" alt=""> <p class="title">潮流饰品</p> <div class="buybox"> 快速购买通道 </div> </li> <li> <img src="./images/match02.jpg" alt=""> <p class="title">潮流饰品</p> <div class="buybox"> 快速购买通道 </div> </li> <li> <img src="./images/match03.jpg" alt=""> <p class="title">潮流饰品</p> <div class="buybox"> 快速购买通道 </div> </li> <li> <img src="./images/match04.jpg" alt=""> <p class="title">潮流饰品</p> <div class="buybox"> 快速购买通道 </div> </li> </ul> </div> <div class="footer"> <p> All right reseved©2006-2016 CHAOUUFUSHI.com, All right reseved</p> <p>2021-2018, 版权所有 潮流服饰 85CP备案13385453</p> </div> </div> </body> </html>
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Document</title> <style type="text/css"> * { padding: 0; margin: 0; } li { list-style: none; } div { box-sizing: border-box; } .min-content { width: 980px; margin: 0 auto; } .content { width: 1280px; margin: 0 auto; } .header { height: 120px; line-height: 120px; background: #fff; } .header .logo { float: left; height: 80px; margin-top: 20px; } .header .goto { float: right; color: #666; } .header .goto a { color: #666; text-decoration: none; } .navbox { height: 60px; background: #404042; line-height: 60px; color: #fff; font-size: 18px; } .navbox ul li { padding: 0 42px; float: left; } .navbox ul li:hover { background-color: #DA5454; } .banner img { width: 100%; } .function ul { display: flex; } .function ul li { padding: 34px 0; flex: 1 0 0; border: 1px solid #ddd; border-top: 0; border-spacing: 0; } .function .item img { height: 50px; margin: 0 15px 0 28px; float: left; } .function .item .info .title { font-size: 17px; } .function .item .info .subtitle { font-size: 14px; color: #666; } .demobox,.newsbox { margin-top: 10px; } .demobox ul .item { float: left; margin: 3px 8px; } .demobox .title,.newsbox .title { line-height: 56px; border-bottom: 1px solid #ddd; margin-bottom: 10px; color: #222; font-size: 18px; } .newsbox .itemtitle { font-size: 15px; color: #444; } .newsbox>ul { display: flex; gap: 15px; } .newsbox>ul .listbox { flex: 1 0 0; border: 1px solid #ddd; padding: 25px 20px; } .newsbox>ul .listbox .itemtitle { margin-bottom: 5px; } .newsbox>ul .listbox ul .item { border-bottom: 1px solid #ddd; padding: 20px 0; } .newsbox>ul .listbox ul .item img { float: left; margin-right: 15px; } .newsbox>ul .listbox ul .item .infotitle { font-size: 16px; color: #222; } .newsbox>ul .listbox ul .item .subtitle { font-size: 13px; color: #aaa; } .footer { padding: 46px; margin-top: 20px; background-color: #111; text-align: center; color: #fff; line-height: 36px; font-size: 15px; } </style> </head> <body> <div class="content"> <div class="min-content"> <div class="header"> <img class="logo" src="./images/logo.png" alt="logo"> <div class="goto"> <a href="#">登录</a> | <a href="#">注册</a> </div> </div> </div> <div class="navbox"> <div class="min-content"> <ul> <li class="item">首页</li> <li class="item">设计案例</li> <li class="item">装修图库</li> <li class="item">有问必答</li> <li class="item">逛商品</li> </ul> </div> </div> <div class="banner"> <img src="./images/banner.jpg" alt="banner"> </div> <div class="function min-content"> <ul> <li class="item"> <img src="./images/pic01.jpg" alt=""> <div class="info"> <p class="title">浏览真实设计案例</p> <p class="subtitle">设计师原创作品</p> </div> </li> <li class="item"> <img src="./images/pic02.jpg" alt=""> <div class="info"> <p class="title">浏览真实设计案例</p> <p class="subtitle">设计师原创作品</p> </div> </li> <li class="item"> <img src="./images/pic03.jpg" alt=""> <div class="info"> <p class="title">浏览真实设计案例</p> <p class="subtitle">设计师原创作品</p> </div> </li> <li class="item"> <img src="./images/pic04.jpg" alt=""> <div class="info"> <p class="title">浏览真实设计案例</p> <p class="subtitle">设计师原创作品</p> </div> </li> </ul> </div> <div class="demobox min-content"> <h4 class="title">设计案例</h4> <ul> <li class="item"> <img src="./images/pic05.jpg" alt=""> </li> <li class="item"> <img src="./images/pic06.jpg" alt=""> </li> <li class="item"> <img src="./images/pic07.jpg" alt=""> </li> <li class="item"> <img src="./images/pic08.jpg" alt=""> </li> <li class="item"> <img src="./images/pic09.jpg" alt=""> </li> <li class="item"> <img src="./images/pic10.jpg" alt=""> </li> </ul> </div> <div class="newsbox min-content"> <h4 class="title">最新动态</h4> <ul> <li class="listbox"> <h3 class="itemtitle">有问必答</h3> <ul class=""> <li class="item"> <img src="./images/pic01.png" alt=""> <div class="info"> <p class="infotitle">家具用品哪个品牌好</p> <p class="subtitle">回答:谢美家居用品很多错...</p> </div> </li> <li class="item"> <img src="./images/pic02.png" alt=""> <div class="info"> <p class="infotitle">家具用品哪个品牌好</p> <p class="subtitle">回答:谢美家居用品很多错...</p> </div> </li> <li class="item"> <img src="./images/pic03.png" alt=""> <div class="info"> <p class="infotitle">家具用品哪个品牌好</p> <p class="subtitle">回答:谢美家居用品很多错...</p> </div> </li> </ul> </li> <li class="listbox"> <h3 class="itemtitle">发布需求</h3> <ul class=""> <li class="item"> <img src="./images/pic04.png" alt=""> <div class="info"> <p class="infotitle">家具用品哪个品牌好</p> <p class="subtitle">回答:谢美家居用品很多错...</p> </div> </li> <li class="item"> <img src="./images/pic05.png" alt=""> <div class="info"> <p class="infotitle">家具用品哪个品牌好</p> <p class="subtitle">回答:谢美家居用品很多错...</p> </div> </li> <li class="item"> <img src="./images/pic06.png" alt=""> <div class="info"> <p class="infotitle">家具用品哪个品牌好</p> <p class="subtitle">回答:谢美家居用品很多错...</p> </div> </li> </ul> </li> <li class="listbox"> <h3 class="itemtitle">预约设计师</h3> <ul class=""> <li class="item"> <img src="./images/pic06.png" alt=""> <div class="info"> <p class="infotitle">家具用品哪个品牌好</p> <p class="subtitle">回答:谢美家居用品很多错...</p> </div> </li> <li class="item"> <img src="./images/pic07.png" alt=""> <div class="info"> <p class="infotitle">厨房在哪个方位风水好</p> <p class="subtitle">回答:看风水要结合...</p> </div> </li> <li class="item"> <img src="./images/pic08.png" alt=""> <div class="info"> <p class="infotitle">卧室多大比较合适</p> <p class="subtitle">回答:一般卧室的大小...</p> </div> </li> </ul> </li> </ul> </div> </div> <div class="footer"> <p>关于我们 | 联系我们 | 意见建议 | 帮助中心 | 使用条款</p> <p>免责声明:本网站部分内容由用户自行上传,如权利人发现存在误传其作品情形,请及时与本站联系。</p> </div> </body> </html>
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Document1</title> <style> * { padding: 0; margin: 0; } li { list-style: none; } a { color: #666; text-decoration: none; } .content { width: 1280px; margin: 0 auto; } .nav { height: 600px; background: url("images/bg.png") center; background-size: cover; } .navlist { padding: 30px 60px; box-sizing: border-box; text-align: center; } .navlist ul li { float: left; line-height: 60px; padding: 0 50px; font-size: 16px; } .seach { position: relative; width: 128px; height: 36px; margin-top: 12px; } .seach img { height: 16px; position: absolute; top: calc(50% - 8px); left: 10px; z-index: 10; } .seach .input { position: absolute; top: 0; left: 0; height: 100%; width: 100%; border: none; border-radius: 18px; font-size: 12px; padding-left: 32px; box-sizing: border-box; outline: none; color: #666 } .hot { text-align: center; margin-top: 20px; } .hotlist { margin-top: 20px; text-align: left; padding: 0 60px; box-sizing: border-box; } .hotlist .item .img img { width: 100%; } .hotlist .item .title { padding: 10px; box-sizing: border-box; font-weight: bold; font-size: 18px; color: #333; border-bottom: 1px solid #ddd; } .hotlist .item .info { padding: 10px; padding-bottom: 30px; color: #bbb; box-sizing: border-box; } .hotlist { display: flex; gap: 80px; } .bottomimage img { width: 100%; } .life { background-color: #E1EBF2; margin-top: 50px; text-align: center; padding: 30px 0; } .life ul { text-align: center; } .life ul li { display: inline-block; margin: 20px 20px; } .footer { height: 80px; background: url("images/footer_bg.jpg"); color: #fff; text-align: center; line-height: 80px; margin-top: 50px; } </style> </head> <body> <div class="content"> <div class="nav"> <div class="navlist"> <ul> <li> <img class="logo" src="./images/logo.png" alt=""> </li> <li><a href="#">网站首页</a></li> <li><a href="#">床和床垫</a></li> <li><a href="#">卧室纺织品</a></li> <li><a href="#">灯具照明</a></li> <li class="seach"> <img src="./images/f.png" alt=""> <input class="input" type="text" placeholder="输入商品名称"> <li> </ul> </div> </div> <div class="hot"> <img src="./images/dongtai.jpg" alt=""> <ul class="hotlist"> <li class="item"> <dt class="box"> <dd class="img"> <img src="./images/news1.jpg" alt=""> </dd> <dd class="title">BEST贝达</dd> <dd class="info">将杂乱无章的物品收纳到视线之外,在我怕门后要展示台的心爱之物!</dd> <dd class="bottomimage"><img src="./images/yinying.jpg" alt=""></dd> </dt> </li> <li class="item"> <dt class="box"> <dd class="img"> <img src="./images/news2.jpg" alt=""> </dd> <dd class="title">BEST贝达</dd> <dd class="info">将杂乱无章的物品收纳到视线之外,在我怕门后要展示台的心爱之物!</dd> <dd class="bottomimage"><img src="./images/yinying.jpg" alt=""></dd> </dt> </li> <li class="item"> <dt class="box"> <dd class="img"> <img src="./images/news3.jpg" alt=""> </dd> <dd class="title">BEST贝达</dd> <dd class="info">将杂乱无章的物品收纳到视线之外,在我怕门后要展示台的心爱之物!</dd> <dd class="bottomimage"><img src="./images/yinying.jpg" alt=""></dd> </dt> </li> </ul> </div> <div class="life"> <img src="./images/shenghuo.png" alt=""> <ul> <li><img src="./images/img1.jpg" alt=""></li> <li><img src="./images/img2.jpg" alt=""></li> <li><img src="./images/img3.jpg" alt=""></li> </ul> </div> </div> <div class="footer"> 爱家居版权所有2016-2026京ICP备222222222号 京公网安备2222222222222 </div> </body> </html>
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Document2</title> <style> * { margin: 0; padding: 0; } li { list-style: none; } .main { width: 980px; margin: 0 auto; } .top { background: url("images/logo.jpg") no-repeat; background-position: 50px; height: 56px; line-height: 56px; margin-top: 10px; } .top .user { float: right; margin-right: 50px; } .top .user a { color: #FF9C00; text-decoration: none; } .nav { background-color: #FF9C00; height: 46px; margin-top: 10px; text-align: center; line-height: 46px; font-size: 16px; } .navlist li { display: inline-block; height: 100%; } .navlist li a { height: 100%; padding: 0 25px; color: #B55F23; text-decoration: none; display: inline-block; } .navlist li a:hover { background-color: #fca76a; } .banner { height: 432px; background: url("./images/banner.jpg") no-repeat center; background-size: cover; } .infobox { height: 160px; background-color: #E7BF80; } .infobox ul { text-align: center; } .infobox ul li { width: 120px; height: 120px; border-radius: 50%; display: inline-block; margin: 0 20px; margin-top: 20px; overflow: hidden; position: relative; } .infobox ul li .icon { width: 120px; position: absolute; left: 0; } .infobox ul li .title { color: #A47167; position: absolute; text-align: center; top: 76px; width: 100%; } .shoplist { background-color: #F8F5BC; padding: 50px 80px; padding-bottom: 60px; } .shoplist ul { display: flex; gap: 20px; flex-wrap: wrap; } .shoplist .item { flex: 20%; background-color: #fff; border: 1px solid #ddd; padding: 10px; box-sizing: border-box; } .shoplist .item img { width: 100%; } .shoplist .item .title,.shoplist .item .price { color: #A47167; margin-top: 5px; } .shoplist .item .name,.shoplist .item .price span { color: #FDA6A0; margin-top: 5px; } .footer { height: 120px; line-height: 120px; text-align: center; color: #fff; background: url("./images/footer.png") repeat-x; margin-top: -10px; } </style> </head> <body> <div class="main"> <div class="top"> <div class="user"> <a href="#">登录 |</a> <a href="#">注册</a> </div> </div> <div class="nav"> <ul class="navlist"> <li><a href="#">首页</a></li> <li><a href="#">公司简介</a></li> <li><a href="#">美食甜品</a></li> <li><a href="#">用户留言</a></li> <li><a href="#">联系我们</a></li> </ul> </div> <div class="banner"></div> <div class="infobox"> <ul> <li> <img class="icon" src="./images/list1.png" alt=""> <p class="title">提拉米苏</p> </li> <li> <img class="icon" src="./images/list2.png" alt=""> <p class="title">甜甜圈</p> </li> <li> <img class="icon" src="./images/list3.png" alt=""> <p class="title">芝士蛋糕</p> </li> <li> <img class="icon" src="./images/list4.png" alt=""> <p class="title">马卡龙</p> </li> <li> <img class="icon" src="./images/list5.png" alt=""> <p class="title">西式甜点</p> </li> </ul> </div> <div class="shoplist"> <ul> <li class="item"> <img src="./images/con1.jpg" alt=""> <p class="title">爱的N次方</p> <p class="name">马卡龙</p> <p class="price">价格:<span>30元</span></p> </li> <li class="item"> <img src="./images/con2.jpg" alt=""> <p class="title">果肉果冻</p> <p class="name">双色马卡龙</p> <p class="price">价格:<span>30元</span></p> </li> <li class="item"> <img src="./images/con3.jpg" alt=""> <p class="title">芒果味</p> <p class="name">补丁马卡龙</p> <p class="price">价格:<span>30元</span></p> </li> <li class="item"> <img src="./images/con4.jpg" alt=""> <p class="title">果冻荔枝味</p> <p class="name">多彩马卡龙</p> <p class="price">价格:<span>30元</span></p> </li> <li class="item"> <img src="./images/con5.jpg" alt=""> <p class="title">果冻巧克力</p> <p class="name">西式甜点</p> <p class="price">价格:<span>30元</span></p> </li> <li class="item"> <img src="./images/con6.jpg" alt=""> <p class="title">流动水果</p> <p class="name">提拉米苏</p> <p class="price">价格:<span>30元</span></p> </li> <li class="item"> <img src="./images/con7.jpg" alt=""> <p class="title">玫瑰花型</p> <p class="name">马卡龙</p> <p class="price">价格:<span>30元</span></p> </li> <li class="item"> <img src="./images/con8.jpg" alt=""> <p class="title">木买奶油</p> <p class="name">芝士蛋糕</p> <p class="price">价格:<span>30元</span></p> </li> </ul> </div> <div class="footer"> 西式甜点网版权所有2000-2016京ICP备08001421号 京公网安备110108007702 </div> </div> </body> </html>
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Document1</title> <style> * { padding: 0; margin: 0; } li { list-style: none; } a { color: #666; text-decoration: none; } .content { width: 1280px; margin: 0 auto; } .nav { height: 600px; background: url("images/bg.png") center; background-size: cover; } .navlist { padding: 30px 60px; box-sizing: border-box; text-align: center; } .navlist ul li { float: left; line-height: 60px; padding: 0 50px; font-size: 16px; } .seach { position: relative; width: 128px; height: 36px; margin-top: 12px; } .seach img { height: 16px; position: absolute; top: calc(50% - 8px); left: 10px; z-index: 10; } .seach .input { position: absolute; top: 0; left: 0; height: 100%; width: 100%; border: none; border-radius: 18px; font-size: 12px; padding-left: 32px; box-sizing: border-box; outline: none; color: #666 } .hot { text-align: center; margin-top: 20px; } .hotlist { margin-top: 20px; text-align: left; padding: 0 60px; box-sizing: border-box; } .hotlist .item .img img { width: 100%; } .hotlist .item .title { padding: 10px; box-sizing: border-box; font-weight: bold; font-size: 18px; color: #333; border-bottom: 1px solid #ddd; } .hotlist .item .info { padding: 10px; padding-bottom: 30px; color: #bbb; box-sizing: border-box; } .hotlist { display: flex; gap: 80px; } .bottomimage img { width: 100%; } .life { background-color: #E1EBF2; margin-top: 50px; text-align: center; padding: 30px 0; } .life ul { text-align: center; } .life ul li { display: inline-block; margin: 20px 20px; } .footer { height: 80px; background: url("images/footer_bg.jpg"); color: #fff; text-align: center; line-height: 80px; margin-top: 50px; } </style> </head> <body> <div class="content"> <div class="nav"> <div class="navlist"> <ul> <li> <img class="logo" src="./images/logo.png" alt=""> </li> <li><a href="#">网站首页</a></li> <li><a href="#">床和床垫</a></li> <li><a href="#">卧室纺织品</a></li> <li><a href="#">灯具照明</a></li> <li class="seach"> <img src="./images/f.png" alt=""> <input class="input" type="text" placeholder="输入商品名称"> <li> </ul> </div> </div> <div class="hot"> <img src="./images/dongtai.jpg" alt=""> <ul class="hotlist"> <li class="item"> <dt class="box"> <dd class="img"> <img src="./images/news1.jpg" alt=""> </dd> <dd class="title">BEST贝达</dd> <dd class="info">将杂乱无章的物品收纳到视线之外,在我怕门后要展示台的心爱之物!</dd> <dd class="bottomimage"><img src="./images/yinying.jpg" alt=""></dd> </dt> </li> <li class="item"> <dt class="box"> <dd class="img"> <img src="./images/news2.jpg" alt=""> </dd> <dd class="title">BEST贝达</dd> <dd class="info">将杂乱无章的物品收纳到视线之外,在我怕门后要展示台的心爱之物!</dd> <dd class="bottomimage"><img src="./images/yinying.jpg" alt=""></dd> </dt> </li> <li class="item"> <dt class="box"> <dd class="img"> <img src="./images/news3.jpg" alt=""> </dd> <dd class="title">BEST贝达</dd> <dd class="info">将杂乱无章的物品收纳到视线之外,在我怕门后要展示台的心爱之物!</dd> <dd class="bottomimage"><img src="./images/yinying.jpg" alt=""></dd> </dt> </li> </ul> </div> <div class="life"> <img src="./images/shenghuo.png" alt=""> <ul> <li><img src="./images/img1.jpg" alt=""></li> <li><img src="./images/img2.jpg" alt=""></li> <li><img src="./images/img3.jpg" alt=""></li> </ul> </div> </div> <div class="footer"> 爱家居版权所有2016-2026京ICP备222222222号 京公网安备2222222222222 </div> </body> </html>
import random def create(): randomArr = [] while len(randomArr) < 6: randNumber = random.randint(1,33) if not randNumber in randomArr: randomArr.append(randNumber) randomArr.append(random.randint(1,16)) return randomArr def getUserInput(): userInput = [] while len(userInput) < 6: red_input = input("请输入第%d个红色球号码: " % (len(userInput)+1)) if red_input.isdigit(): red_input = int(red_input) if red_input >=1 and red_input <= 33: if not red_input in userInput: userInput.append(red_input) else: print("这个号码已经被选过了") else: print("请输入1-33之间的红球号码") else: print("请输入正确的号码") while len(userInput) < 7: blue_input = input("请输入蓝色球号码: ") if blue_input.isdigit(): blue_input = int(blue_input) if blue_input >=1 and blue_input <= 16: userInput.append(blue_input) else: print("请输入1-16之间的蓝球号码") else: print("请输入正确的号码") return userInput def getRedCount(arr,userInput): redCount = 0 for i in range(len(arr)): if arr[i] == userInput[i]: redCount += 1 return redCount def getBlueCount(arr,userInput): blueCount = 0 if arr[len(arr)-1] == userInput[len(userInput)-1]: blueCount = 1 return blueCount def getResult(redCount, blueCount): if(redCount == 6 and blueCount == 1): return "一等奖,中奖1000万" elif(redCount == 6 and blueCount == 0): return "二等奖,中奖500万" elif(redCount == 5 and blueCount == 1): return "三等奖,中奖3000" elif((redCount == 5 and blueCount == 0) or (redCount == 4 and blueCount == 1)): return "四等奖,中奖200元" elif((redCount == 4 and blueCount == 0) or (redCount == 3 and blueCount == 1) or (redCount == 2 and blueCount == 1)): return "五等奖,中奖10元" elif((redCount == 1 and blueCount == 0) or blueCount == 1): return "六等奖,中奖5元" return "未中奖" #创建中奖号码 arrNumber = create() #得到用户输入 userInput = getUserInput() #计算红球中奖个数 redCount = getRedCount(arrNumber,userInput) print("红球中奖个数: ",redCount) #计算蓝球中奖个数 blueCount = getBlueCount(arrNumber,userInput) print("蓝球中奖个数: ",blueCount) #最终结果 result = getResult(redCount, blueCount) print("中奖号码为",arrNumber) print("你输入的号码为",userInput) print(result)
用法: methods: { // #ifdef APP-PLUS but:function() { console.log("APP端"); } // #endif #ifdef H5 but:function() { console.log("网页端"); } #endif #ifdef MP-WEIXIN but:function() { console.log("微信端"); } #endif #ifdef H5 || MP-WEIXIN but:function() { console.log("网页或微信端"); } #endif } 更多参数:https://uniapp.dcloud.net.cn/tutorial/platform.html#%E8%B7%A8%E7%AB%AF%E5%85%BC%E5%AE%B9
讲解if语句之前先讲一下相关的运算符号 编程语言基本运算符号有: "<" ">" "==" "<=" ">=" "!=" 等 我挨个讲解他们的运算逻辑是怎么个实现的 首先是 ">" 运算符他的作用和数学上的 大于 相同,也是作为两个数的大小进行比较,如3>2,3肯定是大于2的,那么将会返回一个真条件,那如果是2>3,那么将会返回一个假条件,在c语言中,1代表真,0代表假,那么就是3>2返回1,2>3返回0 ">" 运算符和小于是相反的,和数学上面的比较方式类似 "==" 运算符在c语言中代表的是 "=" 打个比方就是1==1,将会返回一个真条件,就是1。如果是1==2那么将会返回0 另外的"<="以及">="同等与数学的 大于等于 和 小于等于。 "!=" 运算符表达的是不等于,也就是1!=1返回0,1!=2将会返回1。 上面是运算符------下面是if语句 if语句代表的就是c语言中的条件语句,写法: if(条件) { //条件为真后执行的代码区 } if语句中的条件值得就是上方的运算结果,打个比方: if(10>=9) { //条件为真后执行的代码区 printf("10>=9为真"); } 10>=9因为是正确的,最后会返回1,也就是真条件 接下来就是if中的else语句,写法: if(10>=9) { //条件为真后执行的代码区 printf("10>=9为真"); }else{ //条件为假后执行的代码区 printf("10>=9为假"); } else{}花括号中的代码在假条件时会被执行,但是10>=9是真条件,所以else花括号中的代码永远不会被执行 那么改成这样: if(10<=9) { //条件为真后执行的代码区 printf("10<=9为真"); }else{ //条件为假后执行的代码区 printf("10<=9为假"); } 因为10并不会小于等于9,所以条件为假,最后会执行的是else花括号中的代码,也就是printf("10<=9为假"); 最后就是else if()语句,这个语句代表的是:如果第一个if()中的条件未满足,那么将继续往下判断else if()中的条件是否为真: if(10<=9) { //条件为真后执行的代码区 printf("10<=9为真"); }else if(10>=9){ //条件为假后执行的代码区 printf("10>=9为真"); } 那么就是先判断10<=9是否未真,如果为真将会直接执行if(){}中的代码,如果为假,就会继续向下面的else if()中的条件进行判断是否为真,如果为真就执行else if()中的内容,如果为假则不执行。 当然if,else if以及else都是可以同时使用的: if(10<=9) { //条件为真后执行的代码区 printf("10<=9为真"); }else if(10>=9){ //条件为假后执行的代码区 printf("10>=9为真"); }else{ //上面条件全部为假 printf("上面条件全部为假"); } 这样写法就是当上面的if()以及else if()中的条件全部判断为假后将会执行else{}区块内的代码! ---最后是一点扩展内容--- c语言中的条件语句最后的结果都是0或者1,1==1最后会返回1,1==2最后会返回0,然而if()中写的条件最后也会变成0或者1。 if(1) { printf("条件为真"); } 那么这样写是不是也能执行呢?答案是可以的 我们可以写上两行代码来观测1==1最后返回的结果: int a = (1==1); printf("%d",a); 我这边调试最后打印的结果是1,也就是真条件。所以if()进行逻辑的判断
//final修饰的方法: 表明方法是最终方法,不能被重写 //final修饰的类: 表面类是最终类,不能被继承 //final修饰的变量: 表面变量为常量,不能在程序中被重新赋值 public class Test { public static void main(String[] args) { Zi z = new Zi(); Fu f = new Fu(); z.getPi(); //调用Fu类中无法被重写的getPi方法 System.out.println("=========================="); z.sum(5,6); //调用子类中被重写的sum方法 System.out.println("=========================="); //变量使用final修饰后无法被修改,变成常量,常量单词一般全大写组成。单词之间使用下划线隔开 //常量类型为基本数据类型时,记录的值不能发生改成。byte、char、short、int、long、float、double、boolean //常量类型为引用数据类型时,记录的地址值不能发生改变,内部的属性值可以改变。 //如对象使用final修饰后,还是可以调用set方法修改对象中的属性 final int A = 10; // A = 12; //报错,因为A是常量。无法修改,在定义时就必须完成赋值 System.out.println(A); } } class Fu { public final void getPi() { System.out.println("我是被final修饰的getPi方法,位于Fu类中"); System.out.println("3.14159265358979323846"); } public void sum(int a, int b) { System.out.println("我是没被final修饰的sum方法,位于Fu类中"); System.out.println(a+b); } } class Zi extends Fu { //sum方法没有被final修饰,可以被重写 @Override public void sum(int a, int b) { System.out.println("我是没被final修饰的sum方法,位于Zi类中"); System.out.println(a+b); } //getPi方法被final修饰,不能被重写,报错 // @Override // public final void getPi() { // System.out.println("我是被final修饰的getPi方法,位于Fu类中"); // System.out.println("3.14159265358979323846"); // } }
import java.util.Scanner; //罗马数字转换 public class Main { public static void main(String[] args) { Scanner sc = new Scanner(System.in); System.out.println("输入数字字符串"); String number = sc.next(); StringBuffer result = new StringBuffer(); if(checkNum(number)) { for (int i = 0; i < number.length(); i++) { String c = getLuoMa(number.charAt(i)); result.append(c); } }else{ System.out.println("请输入正确的数字"); } System.out.println(result); } public static boolean checkNum(String number) { if (number.length() == 0 || number.length() > 9){ return false; } for (int i = 0; i < number.length(); i++) { char n = number.charAt(i); if (n < '0' || n > '9') { return false; } } return true; } public static String getLuoMa(int number) { String[] numLuoMa = {" ","Ⅰ","Ⅱ","Ⅲ","Ⅳ","Ⅴ","Ⅵ","Ⅶ","Ⅷ","Ⅸ"}; return numLuoMa[number - 48]; //48对应数字0,如果输入1,对应ASCII码的49,那么减去48还是1 } }
<?php /** * 功能:图片压缩 */ class imgcompress { private $src; private $image; private $imageinfo; private $percent = 0.5; /** * 图片压缩 * @param $src 源图 * @param float $percent 压缩比例 */ public function __construct($src, $percent=1) { $this->src = $src; $this->percent = $percent; } /** 高清压缩图片 * @param string $saveName 提供图片名(可不带扩展名,用源图扩展名)用于保存。或不提供文件名直接显示 */ public function compressImg($saveName='') { $this->_openImage(); if(!empty($saveName)) $this->_saveImage($saveName); //保存 else $this->_showImage(); } /** * 内部:打开图片 */ private function _openImage() { list($width, $height, $type, $attr) = getimagesize($this->src); $this->imageinfo = array( 'width'=>$width, 'height'=>$height, 'type'=>image_type_to_extension($type,false), 'attr'=>$attr ); $fun = "imagecreatefrom".$this->imageinfo['type']; $this->image = $fun($this->src); $this->_thumpImage(); } /** * 内部:操作图片 */ private function _thumpImage() { $new_width = $this->imageinfo['width'] * $this->percent; $new_height = $this->imageinfo['height'] * $this->percent; $image_thump = imagecreatetruecolor($new_width,$new_height); //将原图复制带图片载体上面,并且按照一定比例压缩,极大的保持了清晰度 imagecopyresampled($image_thump,$this->image,0,0,0,0,$new_width,$new_height,$this->imageinfo['width'],$this->imageinfo['height']); imagedestroy($this->image); $this->image = $image_thump; } /** * 输出图片:保存图片则用saveImage() */ private function _showImage() { header('Content-Type: image/'.$this->imageinfo['type']); $funcs = "image".$this->imageinfo['type']; $funcs($this->image); } /** * 保存图片到硬盘: * @param string $dstImgName 1、可指定字符串不带后缀的名称,使用源图扩展名 。2、直接指定目标图片名带扩展名。 */ private function _saveImage($dstImgName) { if(empty($dstImgName)) return false; $allowImgs = ['.jpg', '.jpeg', '.png', '.bmp', '.wbmp','.gif']; //如果目标图片名有后缀就用目标图片扩展名 后缀,如果没有,则用源图的扩展名 $dstExt = strrchr($dstImgName ,"."); $sourseExt = strrchr($this->src ,"."); if(!empty($dstExt)) $dstExt =strtolower($dstExt); if(!empty($sourseExt)) $sourseExt =strtolower($sourseExt); //有指定目标名扩展名 if(!empty($dstExt) && in_array($dstExt,$allowImgs)){ $dstName = $dstImgName; }elseif(!empty($sourseExt) && in_array($sourseExt,$allowImgs)){ $dstName = $dstImgName.$sourseExt; }else{ $dstName = $dstImgName.$this->imageinfo['type']; } $funcs = "image".$this->imageinfo['type']; $funcs($this->image,$dstName); } /** * 销毁图片 */ public function __destruct(){ imagedestroy($this->image); } }
Java方法定义格式为: public static void 方法名称(参数){...} 例如: public static void test_fun(){ System.out.println("我的第一个方法"); } 调用方法就是直接 test_fun(); 使用void创建方法是不能使用return来返回结果的 想要返回结果需要使用其他类型例如: public static int 方法名称(参数){... return int} 这样的写法就可以返回一个int参数,其他类型也是一样的例子 -------下面讲讲其他语言的方法定义方式------- 首先就说说PHP的方法定义: function 方法名(参数){...} PHP定义方法时不需要定义方法的数据类型,可直接使用return返回各个类型的数据 另外就是C语言,定义方式: void 方法名(参数){...} C语言也是和Java类似,也是需要再定义时决定数据类型才可以进行返回相应的数据类型,例如int 方法名(参数){...}这样就可以返回一个int类型的
//StringBuilder类型示例 public class demo3 { public static void main(String[] args) { //StringBuilder 定义的数据是可改变的 //String 定义的数据是不可改变的,每次覆盖都会产生新的变量 StringBuilder strb1 = new StringBuilder("1123"); //必须使用new方法进行赋值,数据存储在堆中 strb1.append("abc"); //使用append在str1后面添加新的数据,类似一个伪数组同样可以通过charAt的方式访问索引 System.out.println(strb1.charAt(5)); //返回5索引的字符 System.out.println(strb1); StringBuilder strb2 = new StringBuilder("ceshi123"); strb2.reverse(); //容器内的数据进行翻转 String str = strb2.toString(); //StringBuilder类型转为String类型,返回String类型数据 System.out.println(strb2); System.out.println(str); } }
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#include <REGX52.H> #include <INTRINS.H> #include "app/Timer0.h" sbit left_lun_1 = P0^2; sbit left_lun_2 = P0^3; sbit right_lun_1 = P0^0; sbit right_lun_2 = P0^1; unsigned char SBUFs,DIAN_state; void UART_init(){ //9600bps@11.0592MHz SCON = 0x50; PCON |= 0x80; TMOD |= 0x20; //设置定时器模式 TL1 = 0xFA; //设定定时初值 TH1 = 0xFA; //设定定时初值 ES = 1; //开启接受 EA = 1; ET1 = 0; TR1 = 1; //定时器1开始计时 } void main (){ UART_init(); //初始化定时器1 Timer0Init(); //初始化定时器0 left_lun_1 = 0;left_lun_2 = 0;right_lun_1 = 0;right_lun_2 = 0; //默认状态 while(1){ } } void Delay1000us() //@11.0592MHz { unsigned char i, j; _nop_(); _nop_(); i = 200; j = 105; do { while (--j); } while (--i); } void UART_Routine() interrupt 4 { RI = 0; //SBUF为接受到的信息 SBUFs = SBUF; } void Timer0_Routine() interrupt 1 { static unsigned int T0Count; TL0 = 0x18; //设置定时初值 TH0 = 0xFC; //设置定时初值 T0Count++; if(T0Count >= 1000)T0Count = 0; if(SBUFs == 0x00){ //停止 left_lun_1 = 0;left_lun_2 = 0;right_lun_1 = 0;right_lun_2 = 0; DIAN_state = 0; } if(SBUFs == 0xFF){ //取消转弯 if(DIAN_state == 0) SBUFs = 0x00; if(DIAN_state == 1) SBUFs = 0x01; if(DIAN_state == 2) SBUFs = 0x02; } if(SBUFs == 0x01){ //前进 left_lun_1 = 0;left_lun_2 = 1;right_lun_1 = 0;right_lun_2 = 1; DIAN_state = 1; } if(SBUFs == 0x02){ //后退 left_lun_1 = 1;left_lun_2 = 0;right_lun_1 = 1;right_lun_2 = 0; DIAN_state = 2; } if(SBUFs == 0x03){ //转弯 左 right_lun_1 = 0;right_lun_2 = 1; if(DIAN_state == 1){ if(T0Count >= 4){ T0Count = 0; left_lun_1 = 0;left_lun_2 = 1; }else{ left_lun_1 = 0;left_lun_2 = 0; } }else if(DIAN_state == 2){ if(T0Count >= 4){ T0Count = 0; right_lun_1 = 1;right_lun_2 = 0; }else{ right_lun_1 = 0;right_lun_2 = 0; } } } if(SBUFs == 0x04){ //转弯 右 left_lun_1 = 0;left_lun_2 = 1; if(DIAN_state == 1){ if(T0Count >= 4){ T0Count = 0; right_lun_1 = 0;right_lun_2 = 1; }else{ right_lun_1 = 0;right_lun_2 = 0; } }else if(DIAN_state == 2){ if(T0Count >= 4){ T0Count = 0; left_lun_1 = 1;left_lun_2 = 0; }else{ left_lun_1 = 0;left_lun_2 = 0; } } } } P0口接了四个电机,0-3接口接两个电机,另外两个共享电源 前面调用了定时器0的void
v-bind主要用于绑定一个或多个属性值,或者向另一个组件传递props值。 <view v-html="html" :style="sty"> data() { return { sty: "background: red;color:#fff" } } 主要写法在上面所示 完整写法是v-bind:style="sty"缩写::style="sty" 一般用于绑定标签属性
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#include <REGX52.H> //????: sbit LCD_RS=P2^6; sbit LCD_RW=P2^5; sbit LCD_EN=P2^7; #define LCD_DataPort P0 //????: /** * @brief LCD1602????,12MHz?????1ms * @param ? * @retval ? */ void LCD_Delay() { unsigned char i, j; i = 2; j = 239; do { while (--j); } while (--i); } /** * @brief LCD1602??? * @param Command ?????? * @retval ? */ void LCD_WriteCommand(unsigned char Command) { LCD_RS=0; LCD_RW=0; LCD_DataPort=Command; LCD_EN=1; LCD_Delay(); LCD_EN=0; LCD_Delay(); } /** * @brief LCD1602??? * @param Data ?????? * @retval ? */ void LCD_WriteData(unsigned char Data) { LCD_RS=1; LCD_RW=0; LCD_DataPort=Data; LCD_EN=1; LCD_Delay(); LCD_EN=0; LCD_Delay(); } /** * @brief LCD1602?????? * @param Line ???,??:1~2 * @param Column ???,??:1~16 * @retval ? */ void LCD_SetCursor(unsigned char Line,unsigned char Column) { if(Line==1) { LCD_WriteCommand(0x80|(Column-1)); } else if(Line==2) { LCD_WriteCommand(0x80|(Column-1+0x40)); } } /** * @brief LCD1602????? * @param ? * @retval ? */ void LCD_Init() { LCD_WriteCommand(0x38);//??????,????,5*7?? LCD_WriteCommand(0x0c);//???,???,??? LCD_WriteCommand(0x06);//???????,??????,???? LCD_WriteCommand(0x01);//????,?? } /** * @brief ?LCD1602??????????? * @param Line ???,??:1~2 * @param Column ???,??:1~16 * @param Char ?????? * @retval ? */ void LCD_ShowChar(unsigned char Line,unsigned char Column,char Char) { LCD_SetCursor(Line,Column); LCD_WriteData(Char); } /** * @brief ?LCD1602????????????? * @param Line ?????,??:1~2 * @param Column ?????,??:1~16 * @param String ??????? * @retval ? */ void LCD_ShowString(unsigned char Line,unsigned char Column,char *String) { unsigned char i; LCD_SetCursor(Line,Column); for(i=0;String[i]!='\0';i++) { LCD_WriteData(String[i]); } } /** * @brief ???=X?Y?? */ int LCD_Pow(int X,int Y) { unsigned char i; int Result=1; for(i=0;i<Y;i++) { Result*=X; } return Result; } /** * @brief ?LCD1602???????????? * @param Line ?????,??:1~2 * @param Column ?????,??:1~16 * @param Number ??????,??:0~65535 * @param Length ????????,??:1~5 * @retval ? */ void LCD_ShowNum(unsigned char Line,unsigned char Column,unsigned int Number,unsigned char Length) { unsigned char i; LCD_SetCursor(Line,Column); for(i=Length;i>0;i--) { LCD_WriteData(Number/LCD_Pow(10,i-1)%10+'0'); } } /** * @brief ?LCD1602??????????????????? * @param Line ?????,??:1~2 * @param Column ?????,??:1~16 * @param Number ??????,??:-32768~32767 * @param Length ????????,??:1~5 * @retval ? */ void LCD_ShowSignedNum(unsigned char Line,unsigned char Column,int Number,unsigned char Length) { unsigned char i; unsigned int Number1; LCD_SetCursor(Line,Column); if(Number>=0) { LCD_WriteData('+'); Number1=Number; } else { LCD_WriteData('-'); Number1=-Number; } for(i=Length;i>0;i--) { LCD_WriteData(Number1/LCD_Pow(10,i-1)%10+'0'); } } /** * @brief ?LCD1602????????????????? * @param Line ?????,??:1~2 * @param Column ?????,??:1~16 * @param Number ??????,??:0~0xFFFF * @param Length ????????,??:1~4 * @retval ? */ void LCD_ShowHexNum(unsigned char Line,unsigned char Column,unsigned int Number,unsigned char Length) { unsigned char i,SingleNumber; LCD_SetCursor(Line,Column); for(i=Length;i>0;i--) { SingleNumber=Number/LCD_Pow(16,i-1)%16; if(SingleNumber<10) { LCD_WriteData(SingleNumber+'0'); } else { LCD_WriteData(SingleNumber-10+'A'); } } } /** * @brief ?LCD1602???????????????? * @param Line ?????,??:1~2 * @param Column ?????,??:1~16 * @param Number ??????,??:0~1111 1111 1111 1111 * @param Length ????????,??:1~16 * @retval ? */ void LCD_ShowBinNum(unsigned char Line,unsigned char Column,unsigned int Number,unsigned char Length) { unsigned char i; LCD_SetCursor(Line,Column); for(i=Length;i>0;i--) { LCD_WriteData(Number/LCD_Pow(2,i-1)%2+'0'); } } 调用函数显示具体内容即可 .h文件老样子在贴图里面
ASCII 打印字符 (字符编码: 32-127) 32~126(共95个)是字符:32是空格,其中48~57为0到9十个阿拉伯数字,65~90为26个大写英文字母,97~122号为26个小写英文字母,其余为一些标点符号、运算符号等。第127个字符表示的是键盘上的删除命令。 32-127ASCII码对应值在下方
编写程序,从键盘输入列表,输出列表元素的平均值。其中平均值使用函数进行计算。 def get_input(): return input("请输入数据列表: ") def get_average(list): average = 0 for i in list: average += i average /= len(list) return average input_list = eval(get_input()) average = get_average(input_list) print(average)
Mysql外链约束规则
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%a 浮点数、十六进制数字和p-记数法(C99) %A 浮点数、十六进制数字和p-记法(C99) %c 一个字符(char) %C 一个ISO宽字符 %d 有符号十进制整数(int)(%e 浮点数、e-记数法 %E 浮点数、E-记数法 %f 单精度浮点数(默认float)、十进制记数法(%.nf 这里n表示精确到小数位后n位.十进制计数) %g 根据数值不同自动选择%f或%e. %G 根据数值不同自动选择%f或%e. %i 有符号十进制数(与%d相同) %o 无符号八进制整数 %p 指针 %s 对应字符串char*(%S 对应宽字符串WCAHR*(%u 无符号十进制整数(unsigned int) %x 使用十六进制数字0f的无符号十六进制整数 %X 使用十六进制数字0f的无符号十六进制整数 %% 打印一个百分号 特殊运用: %3d 要求宽度为3位,如果不足3位,在前方自动补空格 %03d 要求宽度为3位,如果不足3位,在前方自动补0 %-3d 要求宽度为3位,如果不足3位,在后方自动补空格 %.2f 小数点保留两位
如图快捷键
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//使用截取隐藏手机号中间部分 public class demo1 { public static void main(String[] args) { String phone = "18153468453"; String start = phone.substring(0,4); String end = phone.substring(7); String newPhone = start + "****" + end; System.out.println(newPhone); } }
Python定义变量的方法为: name = "chumo" age = 19 也可以同时定义: name,age = "chumo",19 两种方法定义都是一样的结果 定义变量时不需要像c语言以及java那样先声明数据类型再写入变量内容。 Python常见的数据类型有: Number(数字) String(字符串) List(列表) Tuple(元组) Set(集合) Dictionary(字典)
需要使用Java中的Scanner类包: 在class上加入: import java.util.Scanner; 第二步骤就是将导入的包进行实体化调用: Scanner scanClass = new Scanner(System.in); 注意:这边只有 scanClass 是变量名称可以被更改,其他的都不可进行更改 最后就是调用这个类包: int input = scanClass.nextInt(); 这边的int是输入的参数为int整型 scanClass 是调用类的变量 完整代码示例: import java.util.Scanner; public class java20221216 { public static void main(String []args) { Scanner scanClass = new Scanner(System.in); /* 实体化类 */ System.out.print("请输入整数: "); float input = scanClass.nextInt(); System.out.println("输入的值为:" + input); } }
var timer = setTimeout(() => { console.log(1); }, 1000); 上面是一秒后执行打印函数 下面是每隔一秒执行一次打印函数 var timer = setInterval(() => { console.log(1); }, 1000);
基本的逻辑比较运算符在前面笔记说过了 链接:http://notei.cn/note_see/64 这里主要是讲 与运算 或运算 非运算 学过一点电子逻辑门都应该有点概念的 与运算在C语言中用的符号是 "&&" 实际用法就是: if(10>=5 && 6<=5),顾名思义与逻辑就是要让两个逻辑同时为真最后才能返回真条件,反之就是假条件。 最后会返回的结果为0,为什么10>=5明明是真条件为什么会等于0呢?是因为6<=5是假条件导致整个运算结果也为假条件。 也可以多个条件一起进行运算if(1==1&&2==2&&3==3)多个条件一起运算也是可以的,如果三个条件都为真,那么最后会返回一个真条件,反之假条件。 或逻辑运算方式为只要有一个条件为真,那么最后就会返回真条件。反之全部为假条件,最后也只能返回假条件。符号为 "||" 用法为:if(1==1||2==3)。 非逻辑就是在条件的前面加一个 "!" 也就是小写的感叹号,让最后的逻辑取反。如果逻辑为真后加一个"!"条件将会变成假条件,反之为真。
C语言逗号运算符: int a = 10,b = 20,c = 0; 设置a变量等于10,b变量等于20,c变量等于0 逗号运算符写法: c = (a++,b+=10,a+=b); 注意:一定要用括号将内容包起来 括号内的表达式会从左往右执行,最后c的值会等于最后一个表达式,也就是a+=b 那么c最后会等于什么呢?有的人以为a+=b不就是a=a+b,最后不就是30吗,最后返回的值却是41,别忘了前面还有两个表达式,分别是a++和a+=b,执行完前面两个表达式后,a将会等于11,b会等于30,那么最后a+b就是11+30=41 当整个都好运算符执行完成后,最后a=41,b=30,c=41 为什么a也会等于41呢?因为最后一个表达式a+=b就是a=a+b也会执行,那么a还是会等于a+b也就是41。 写好的代码参考: #include <stdlib.h> int main() { int a = 10,b = 20,c; c = (a++,b+=10,a+=b); printf("%d,%d,%d",a,b,c); return(0); }
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