这里有新鲜出炉的 Javascript 教程,程序狗速度看过来!
Javascript 是一种由 Netscape 的 LiveScript 发展而来的原型化继承的基于对象的动态类型的区分大小写的客户端脚本语言,主要目的是为了解决服务器端语言,比如 Perl,遗留的速度问题,为客户提供更流畅的浏览效果。
这篇文章主要介绍了 javascript 实现简单加载随机色方块的相关资料,感兴趣的小伙伴们可以参考一下
用碎片加载小方块实现简单的随机色块,直接上代码: 效果图:
具体代码:
- <!DOCTYPE html>
- <html>
- <head>
- <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
- <meta charset="utf-8">
- <title>
- koringz
- </title>
- <link rel="stylesheet" href="CSS/demo.css">
- </head>
- <body>
- <div class="container">
- <div class="main">
- <div class="colorful">
- </div>
- </div>
- </div>
- </body>
- </html>
css 代码:
- * {
- -webkit-box-sizing: border-box;
- -moz-box-sizing: border-box;
- box-sizing: border-box;
- }
- html {
- font-size: 10px;
- -webkit-tap-highlight-color: transparent;
- }
- body {
- margin: 0;
- padding: 0;
- font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
- font-size: 14px;
- line-height: 1.42857143;
- color: #333;
- background-color: rgba(211,232,132,0.8);
- }
- .container {
- overflow: visible;
- }
- .main {
- position: relative;
- width: 90%;
- height:200px;
- margin:auto;
- }
- .colorful {
- overflow: visible;
- width: 100%;
- height: 100%;
- }
- .colorful > a {
- float: left;
- display: block;
- width: 50px;
- height: 50px;
- zoom:2;
- }
- .colorful > a:hover {
- -webkit-animation:infinite 2s ease-in-out start-roll;
- -moz-animation:infinite 2s ease-in-out start-roll;
- animation:infinite 2s ease-in-out start-roll;
- }
- @-webkit-keyframes start-roll{
- 0% {
- -webkit-transform: rotate(0deg); /*chrome*/
- -moz-transform: rotate(0deg); /*火狐*/
- -ms-transform: rotate(0deg); /*IE*/
- transform: rotate(0deg);
- -webkit-transition: opacity .3s linear;
- transition: opacity .3s linear;
- opacity: .5;
- filter: alpha(opacity=50);
- zoom:1;
- }
- 50% {
- -webkit-transform: rotate(180deg); /*chrome*/
- -moz-transform: rotate(180deg); /*火狐*/
- -ms-transform: rotate(180deg); /*IE*/
- transform: rotate(180deg);
- -webkit-transition: opacity 1s linear;
- transition: opacity 1s linear;
- opacity: 1;
- filter: alpha(opacity=100);
- zoom:2;
- }
- 100% {
- -webkit-transform: rotate(360deg); /*chrome*/
- -moz-transform: rotate(360deg); /*火狐*/
- -ms-transform: rotate(360deg); /*IE*/
- transform: rotate(360deg);
- -webkit-transition: opacity .3s linear;
- transition: opacity .3s linear;
- opacity: .5;
- filter: alpha(opacity=50);
- zoom:1;
- }
- }
- @-moz-keyframes start-roll{
- 0% {
- -webkit-transform: rotate(0deg); /*chrome*/
- -moz-transform: rotate(0deg); /*火狐*/
- -ms-transform: rotate(0deg); /*IE*/
- transform: rotate(0deg);
- -webkit-transition: opacity .3s linear;
- transition: opacity .3s linear;
- opacity: .5;
- filter: alpha(opacity=50);
- }
- 50% {
- -webkit-transform: rotate(180deg); /*chrome*/
- -moz-transform: rotate(180deg); /*火狐*/
- -ms-transform: rotate(180deg); /*IE*/
- transform: rotate(180deg);
- -webkit-transition: opacity 1s linear;
- transition: opacity 1s linear;
- opacity: .5;
- filter: alpha(opacity=50);
- }
- 100% {
- -webkit-transform: rotate(360deg); /*chrome*/
- -moz-transform: rotate(360deg); /*火狐*/
- -ms-transform: rotate(360deg); /*IE*/
- transform: rotate(360deg);
- -webkit-transition: opacity .3s linear;
- transition: opacity .3s linear;
- opacity: .5;
- filter: alpha(opacity=50);
- }
- }
- @keyframes start-roll{
- 0% {
- -webkit-transform: rotate(0deg); /*chrome*/
- -moz-transform: rotate(0deg); /*火狐*/
- -ms-transform: rotate(0deg); /*IE*/
- transform: rotate(0deg);
- -webkit-transition: opacity .3s linear;
- transition: opacity .3s linear;
- opacity: .5;
- filter: alpha(opacity=50);
- }
- 50% {
- -webkit-transform: rotate(180deg); /*chrome*/
- -moz-transform: rotate(180deg); /*火狐*/
- -ms-transform: rotate(180deg); /*IE*/
- transform: rotate(180deg);
- -webkit-transition: opacity 1s linear;
- transition: opacity 1s linear;
- opacity: .5;
- filter: alpha(opacity=50);
- }
- 100% {
- -webkit-transform: rotate(360deg); /*chrome*/
- -moz-transform: rotate(360deg); /*火狐*/
- -ms-transform: rotate(360deg); /*IE*/
- transform: rotate(360deg);
- -webkit-transition: opacity .3s linear;
- transition: opacity .3s linear;
- opacity: .5;
- filter: alpha(opacity=50);
- }
- }
js 代码:
- (function(window) {
- var document = window.document;
- function on(elem, evtnm, eventhd) {
- var onevtnm = 'on' + evtnm;
- elem[onevtnm] = eventhd;
- }
- function grc() {
- var val = [],
- i = 0;
- while (++i <= 3) {
- val.push(Math.floor(Math.random() * 255));
- }
- return 'rgb(' + val.join() + ')';
- }
- function fbc() {
- var el = document.querySelectorAll('.colorful')[0],
- total = Math.floor(el.offsetWidth / 50) * Math.floor(el.offsetHeight / 50),
- df = document.createDocumentFragment(),
- a;
- while (total-->0) {
- a = document.createElement('a');
- a.style.backgroundColor = grc();
- df.appendChild(a);
- }
- el.appendChild(df);
- }
- on(window, 'load',
- function() {
- fbc();
- });
- })(window)
希望本文所述对大家学习 javascript 程序设计有所帮助。
来源: http://www.phperz.com/article/17/0425/267912.html