sort（）分类的判断到底根据是a-b>0,<0来执行还是>=1,<=-1,<1&&>-1执行的？
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Array对象 </title>
<script type="text/javascript">
function sort1num(a,b) {
return b-a;
}
var myarr = new Array("80","16","16.5","16.2","100","1");
myarr.sort(sort1num);
document.write(myarr);
</script>
</head>
<body>
</body>
</html>
fanaiwen浏览 1679回答 2
2回答
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OmeKrystal
可以看看这个例子：JavaScript sort() 方法sort（）分类的判断的是a-b>0,<0，=0
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JavaScript