<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www./TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www./1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<script type="text/javascript" src="jquery-1.8.3.js"></script>
<script type="text/javascript">
$(function(){
//toggle方法已经不再使用
var i=1;
$("#button").click(function(){
if(i==1){
$(this).css("background","red");
i=2;
}else if(i==2){
$(this).css("background","blue");
i=3;
}else if(i==3){
$(this).css("background","#ffffff");
i=1;
}
})
})
</script>
</head>
<body>
<input type="button" id="button" value="lianjie"/>
</body>
</html>
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