
喜欢的拿起去试一下嘛!
- <!DOCTYPE html>
- <html lang="en">
- <head>
- <meta charset="UTF-8">
- <meta name="viewport" content="width=device-width, initial-scale=1.0">
- <meta http-equiv="X-UA-Compatible" content="ie=edge">
- <title>Document</title>
- <style>
- *{
- padding: 0;
- margin: 0;
- }
- /*#canvas{
- display: block;
- border: 1px solid black;
- margin: 50px auto;
- 宽高在标签上设置
- }*/
- </style>
- </head>
- <body>
- <canvas id="canvas"></canvas>
- <script>
- document.body.parentNode.style.overflow = "hidden";
- var oCanvas = document.querySelector("#canvas"),
- // 获取一下canvas里面所有api(方法)
- oCtx = oCanvas.getContext("2d");
- //1获取可视区域的宽高 附值给画布
- var oWidth = window.innerWidth,
- oHeight = window.innerHeight;
- oCanvas.width = oWidth,
- oCanvas.height = oHeight;
- //2准备下落的字母
- var thischar = 'QWERTYUIOPASDFGHJKKLZXCVBNM';
- //3设置文字大小
- var fontSize = 24;
- //4一行多少个
- var num = Math.floor(oWidth/fontSize);
- //用一个数组去存放字母的y坐标
- var drops =[];
- for (let index = 0; index < num; index++) {
- drops.push(0);
- }
- function draw() {
- oCtx.fillStyle = "rgba(0,0,0,0.1)";
- //设置背景颜色
- oCtx.fillRect(0,0,oWidth,oHeight);
- oCtx.fillStyle="green";
- oCtx.font = fontSize+"px";
- //造字母
- for(var i = 0;i <num;i++){
- var oX = i*fontSize,
- oY = drops[i]*fontSize;
- //绘制坐标
- oCtx.fillText(thischar[Math.floor(Math.random()*thischar.length)],oX,oY);
- if (oY>oHeight&&Math.random()>0.95) {
- drops[i]=0;
- }
- drops[i]++;
-
- }
- }
- setInterval(() => {
- draw();
- }, 50); //每隔50毫秒 去执行一次 draw这个函数
- </script>
- </body>
- </html>
- <!--
- 基础
- //线条开始的坐标(x,y)
- // oCtx.moveTo(20,20);
- // //线条终止的地方
- // oCtx.lineTo(200,200);
- // //
- // oCtx.lineTo(400,20);
- // oCtx.lineTo(20,20);
- // //填充颜色
- // oCtx.fillStyle="lightblue";
- // oCtx.fill();
- // //画到画布上去
- // oCtx.stroke();
- -->
下面是做的一个简单的登录页面,做得不是很好呀
- <!DOCTYPE html>
- <html lang="en">
- <head>
- <meta charset="UTF-8">
- <meta name="viewport" content="width=device-width, initial-scale=1.0">
- <meta http-equiv="X-UA-Compatible" content="ie=edge">
- <title>Document</title>
- <link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.8.1/css/all.css">
- <style>
- *{
- padding: 0;
- margin: 0;
- font-family: "montserrat",sans-serif;
- }
- /*#canvas{
- display: block;
- border: 1px solid black;
- margin: 50px auto;
- 宽高在标签上设置
- }*/
- #mytoby {
- position: absolute;
- width: 350px;
- height: 400px;
- top: 50%;
- left: 50%;
- transform: translate(-50%,-50%);
- background-color: rgb(73, 73, 66);
- opacity: .7;
- border-radius: 5px;
- }
- .mytoby-form{
- position: absolute;
- top: 50%;
- left: 50%;
- transform: translate(-50%,-50%);
- text-align: center;
- }
- .mytoby-form h1{
- font-weight: 400;
- margin-top: 0;
- color: white;
- }
- .txtb{
- display: block;
- box-sizing: border-box;
- border: 1px solid white;
- width: 240px;
- padding: 10px;
- border-radius: 5px;
- text-align: center;
- margin: 10px auto;
- outline: none;
- }
- .txtsub{
- width: 240px;
- background-color: #2c3e50;
- border: 0;
- color: white;
- padding: 10px;
- border-radius: 6px;
- cursor: pointer;
- transition: 1s;
- }
- .txtsub:hover{
- background-color: white;
- color: #2c3e50;
- font-weight: bold;
- }
- .now-hr{
- border-bottom: 1px solid white;
- margin: 15px auto;
- }
- .then-other{
- display: block;
- box-sizing: border-box;
- position: relative;
- list-style-type: none;
- }
- .then-other li{
- display: inline-block;
- padding: 10px;
-
- }
- .then-other li a{
- color: white;
- text-decoration: none;
- transition: 1s;
- }
- .then-other li:hover{
- background-color: white;
- cursor: pointer;
- }
- .then-other li:hover a{
- color: #2c3e50;
-
- }
- </style>
- </head>
- <body>
- <div id="mytoby">
- <form class="mytoby-form" action="index.html" method="post">
- <h1>WelCome</h1>
- <input class="txtb" type="password" placeholder="Username">
- <input class="txtb" type="password" placeholder="Password">
- <input class="txtsub" type="submit" value="Login">
- <p class="now-hr"></p>
- <ul class="then-other">
- <li><a href="index.html">无法验证?</a></li>
- <li><a href="index.html">忘记密码?</a></li>
- </ul>
- </form>
- </div>
- <canvas id="canvas"></canvas>
- <script>
- document.body.parentNode.style.overflow = "hidden";
- var oCanvas = document.querySelector("#canvas"),
- // 获取一下canvas里面所有api(方法)
- oCtx = oCanvas.getContext("2d");
- //1获取可视区域的宽高 附值给画布
- var oWidth = window.innerWidth,
- oHeight = window.innerHeight;
- oCanvas.width = oWidth,
- oCanvas.height = oHeight;
- //2准备下落的字母
- var thischar = 'QWERTYUIOPASDFGHJKKLZXCVBNM';
- //3设置文字大小
- var fontSize = 24;
- //4一行多少个
- var num = Math.floor(oWidth/fontSize);
- //用一个数组去存放字母的y坐标
- var drops =[];
- for (let index = 0; index < num; index++) {
- drops.push(0);
- }
- function draw() {
- oCtx.fillStyle = "rgba(0,0,0,0.1)";
- //设置背景颜色
- oCtx.fillRect(0,0,oWidth,oHeight);
- oCtx.fillStyle="green";
- oCtx.font = fontSize+"px";
- //造字母
- for(var i = 0;i <num;i++){
- var oX = i*fontSize,
- oY = drops[i]*fontSize;
- //绘制坐标
- oCtx.fillText(thischar[Math.floor(Math.random()*thischar.length)],oX,oY);
- if (oY>oHeight&&Math.random()>0.95) {
- drops[i]=0;
- }
- drops[i]++;
-
- }
- }
- setInterval(() => {
- draw();
- }, 50); //每隔50毫秒 去执行一次 draw这个函数
- </script>
- </body>
- </html>
- <!--
- 基础
- //线条开始的坐标(x,y)
- // oCtx.moveTo(20,20);
- // //线条终止的地方
- // oCtx.lineTo(200,200);
- // //
- // oCtx.lineTo(400,20);
- // oCtx.lineTo(20,20);
- // //填充颜色
- // oCtx.fillStyle="lightblue";
- // oCtx.fill();
- // //画到画布上去
- // oCtx.stroke();
- -->
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