本文实例讲述了jQuery自定义动画函数完整实现技巧。分享给大家供大家参考，具体如下：
运行效果截图如下：
在线演示地址如下：
http://demo.jb51.net/js/2015/jquery-zdy-dh-move-style-demo/
具体代码如下：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>自定义动画DEMO</title>
<script src="jquery-1.4.4.js"></script>
<script src="jquery.easing.1.3.js"></script>
<script>
var Tween = {
Linear:function (start,alter,curTime,dur) {return start+curTime/dur*alter;},//最简单的线性变化,即匀速运动
Quad:{//二次方缓动
easeIn:function (start,alter,curTime,dur) {
return start+Math.pow(curTime/dur,2)*alter;
},
easeOut:function (start,alter,curTime,dur) {
var progress =curTime/dur;
return start-(Math.pow(progress,2)-2*progress)*alter;
},
easeInOut:function (start,alter,curTime,dur) {
var progress =curTime/dur*2;
return (progress<1?Math.pow(progress,2):-((--progress)*(progress-2) - 1))*alter/2+start;
}
},
Cubic:{//三次方缓动
easeIn:function (start,alter,curTime,dur) {
return start+Math.pow(curTime/dur,3)*alter;
},
easeOut:function (start,alter,curTime,dur) {
var progress =curTime/dur;
return start-(Math.pow(progress,3)-Math.pow(progress,2)+1)*alter;
},
easeInOut:function (start,alter,curTime,dur) {
var progress =curTime/dur*2;
return (progress<1?Math.pow(progress,3):((progress-=2)*Math.pow(progress,2) + 2))*alter/2+start;
}
},
Quart:{//四次方缓动
easeIn:function (start,alter,curTime,dur) {
return start+Math.pow(curTime/dur,4)*alter;
},
easeOut:function (start,alter,curTime,dur) {
var progress =curTime/dur;
return start-(Math.pow(progress,4)-Math.pow(progress,3)-1)*alter;
},
easeInOut:function (start,alter,curTime,dur) {
var progress =curTime/dur*2;
return (progress<1?Math.pow(progress,4):-((progress-=2)*Math.pow(progress,3) - 2))*alter/2+start;
}
},
Quint:{//五次方缓动
easeIn:function (start,alter,curTime,dur) {
return start+Math.pow(curTime/dur,5)*alter;
},
easeOut:function (start,alter,curTime,dur) {
var progress =curTime/dur;
return start-(Math.pow(progress,5)-Math.pow(progress,4)+1)*alter;
},
easeInOut:function (start,alter,curTime,dur) {
var progress =curTime/dur*2;
return (progress<1?Math.pow(progress,5):((progress-=2)*Math.pow(progress,4) +2))*alter/2+start;
