转：
javascript中li标签的排序和数组sort的用法
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<!DOCTYPE html>
<html xmlns=
"http://www.w3.org/1999/xhtml"
>
<head>
<meta http-equiv=
"Content-Type"
content=
"text/html; charset=utf-8"
/>
<title></title>
<script type=
"text/javascript"
>
window.onload =
function
() {
var
oBtn = document.getElementById(
"btnChange"
);
var
oUl1 = document.getElementById(
"ul1"
);
oBtn.onclick =
function
() {
var
aLi = oUl1.getElementsByTagName(
"li"
);
var
arr = [];
for
(
var
i = 0; i < aLi.length; i++) {
arr[i] = aLi[i];
}
arr.sort(
function
(li1, li2) {
var
n1 = parseInt(li1.innerText);
var
n2 = parseInt(li2.innerText);
return
n1 - n2;
});
for
(
var
i = 0; i < aLi.length; i++) {
oUl1.appendChild(arr[i]);
}
}
}
</script>
</head>
<body>
<input type=
"button"
name=
""
value=
"移动"
id=
"btnChange"
/>
<ul id=
"ul1"
>
<li>5</li>
<li>2</li>
<li>9</li>
<li>4</li>
<li>7</li>
</ul>
</body>
</html>
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