<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>Title</title>
<meta charset="UTF-8">
<script src="jquery-3.4.1.js"></script>
</head>
<body>
<script>
//1.jquery中的循环，example1
li=[11,22,33,44];
$.each(li,function(a,b){
console.log(a,b);
// });
// 结果：
// 0 11
// 1 22
// 2 33
// 3 44
//2.example2
dic={‘firstname‘:‘Lai‘,‘lastname‘:‘star‘}
$.each(dic,function (a,b) {
console.log(a,b);
})
//结果：
// firstname Lai
// lastname star
</script>
</body>
</html>
原文：https://www.cnblogs.com/startl/p/12293536.html