JQuery中each的使用举例：
<html>
<head>
<title>Untitled</title>
<script src="jquery.1.7.1.min.js"></script>
</head>
<body>
<button>Change colors</button>
<span></span>
<div></div>
<div></div>
<div></div>
<div></div>
<div id="stop">Stop here</div>
<div></div>
<div></div>
<div></div>
</body>
<script>
$("button").click(function () {
$("div").each(function (index, domEle) {
// domEle == this
$(domEle).css("backgroundColor", "yellow");
if ($(this).is("#stop")) {
$("span").text("Stopped at div index #" + index);
return false;
}
});
});
</script>
</html>
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