简单的JS运动封装实例---侧栏分享到

 <!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>无标题文档</title>
<style>
#div1 {width: 100px; height: 200px; background: red; position: absolute; left: -100px; top: 100px;}
#div2 {width: 30px; height: 60px; background: black; position: absolute; right: -30px; top: 70px; color: white; text-align: center;}
</style>
<script>
window.onload = function() { var oDiv1 = document.getElementById('div1');
var oDiv2 = document.getElementById('div2');
var iTimer = null; oDiv1.onmouseover = function() {
startMove(0, 10);
} oDiv1.onmouseout = function() {
startMove(-100, -10);
} function startMove(iTarget, iSpeed) {
clearInterval(iTimer); iTimer = setInterval(function() { if (oDiv1.offsetLeft == iTarget) {
clearInterval(iTimer);
} else {
oDiv1.style.left = oDiv1.offsetLeft + iSpeed + 'px';
} }, 30);
} }
</script>
</head> <body>
<div id="div1">
<div id="div2">分享到</div>
</div>
</body>
</html>
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