发布于 2017-08-11 02:37:24 | 147 次阅读 | 评论: 0 | 来源: 网友投递
这里有新鲜出炉的Javascript教程，程序狗速度看过来！
JavaScript客户端脚本语言
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。
index.html页面:
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>require.js封装轮播图</title>
<style type="text/css">
*{
margin: 0;
padding: 0;
list-style: none;
}
#banner{
width: 830px;
height: 440px;
border: solid 1px;
margin: 50px auto;
position: relative;
overflow: hidden;
}
#banner ul{
position: absolute;
left: 0;
top: 0;
}
#banner ul li{
width: 830px;
height: 440px;
float: left;
}
#banner p{
position: absolute;
left: 50%;
bottom: 10px;
margin-left: -30px;
}
#banner p span{
display: block;
float: left;
width: 15px;
height: 15px;
margin-right: 6px;
background: #ccc;
border-radius: 50%;
}
#banner p .on{
background: red;
}
</style>
<script type="text/javascript" src="require.js" data-main='init'></script>
<!--<script type="text/javascript">
require(['slider'],function(mod){
mod.slide()
})
</script>-->
</head>
<body>
<div id="banner">
<ul>
<li><img src="images/1.jpg"/></li>
<li><img src="images/2.jpg"/></li>
</ul>
<p>
<span class="on"></span>
<span></span>
<span></span>
</p>
</div>
</body>
</html>get.js代码如下:
define(function(require,exports,module){
exports.getStyle = function (obj,name){
if(obj.currentStyle){
return obj.currentStyle[name];
}else{
return getComputedStyle(obj,false)[name];
};
};
});init.js代码如下
require(['slider'],function(mod){
mod.slide();
});slider.js代码如下
define(function(require, exports, module) {
var move = require('StartMove');
var aBtn = document.getElementById('banner').getElementsByTagName('span');
var oUl = document.getElementById('banner').getElementsByTagName('ul')[0];
var aLi = oUl.children;
//三张图片所占的宽度，length返回的是字符串中的字符数
oUl.style.width = aLi.length * aLi[0].offsetWidth + 'px';
exports.slide = function() {
for(var i = 0; i < aBtn.length; i++) {
aBtn[i].index = i;
aBtn[i].onclick = function() {
for(var i = 0; i < aBtn.length; i++) {
aBtn[i].className = '';
}
aBtn[this.index].className = 'on';
move.move(oUl, {
left: -this.index * aLi[0].offsetWidth;
});
};
};
};
});StartMove.js代码如下
define(function(require, exports, module) {
var get = require('get');
exports.move = function move(obj, json, complete) {
clearInterval(obj.timer);
var complete = complete || {};
complete.dur = complete.dur || 1000;
complete.easing = complete.easing || 'ease-out';
var count = parseInt(complete.dur / 30); //总次数
var start = {}; //{width:300,height:300}
var dis = {};
//{width:300,height:300}
for(var name in json) {
start[name] = parseFloat(get.getStyle(obj, name));
dis[name] = json[name] - start[name];
}
var n = 0; //当前步数
obj.timer = setInterval(function() {
n++;
for(var name in json) {
var a = n / count;
switch(complete.easing) {
case 'linear':
var cur = start[name] + a * dis[name];
break;
case 'ease-in':
var cur = start[name] + Math.pow(a, 3) * dis[name];
break;
case 'ease-out':
var a = 1 - n / count;
var cur = start[name] + (1 - Math.pow(a, 3)) * dis[name];
break;
};
if(name == 'opacity') {
obj.style[name] = cur;
obj.style.filter = 'alpha(' + cur * 100 + ')';
} else {
obj.style[name] = cur + 'px';
};
};
if(n == count) {
clearInterval(obj.timer)
complete.fn && complete.fn();
};
}, 30);
};
});以上所述是小编给大家介绍的使用Require.js封装原生js轮播图，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对phperz网站的支持！