<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="zh-cn">
<head>
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8" />
<title>网页标题</title>
<meta name="keywords" content="关键字列表" />
<meta name="description" content="网页描述" />
<link rel="stylesheet" type="text/css" href="" />
<style type="text/css"></style>
<script type="text/javascript">
//定义一个二数组
var arr =[
[1,2,3,4],
[12,23,34,45],
[16,27,38,40],
];
//定义总和的变量
var sum=0;
//定义个数
var len=0;
//假设最大值
var max=arr[0][0];
//假设最小值
var min=arr[0][0];
//循环父数组
for(var i=0;i<arr.length;i++){
//循环子数组
for(var j=0;j<arr[0].length;j++){
//总和
sum +=arr[i][j];
//个数
len++;
//判断哪个大并赋值给max
if(max<arr[i][j]){
max =arr[i][j];
}
//判断哪个小并赋值给min
if(min>arr[i][j]){
min =arr[i][j];
}
}
}
document.write(‘平均值‘+sum/len+‘,最大值‘+max+‘,最小值‘+min);
</script>
</head>
<body>
</body>
</html>
时间： 2024-12-08 01:26:18