jQuery的map方法可以遍历数组,也可以遍历伪数组
$(function(){var arr=[1,2,34,]var fakeArray = {length: 3,"0": "first","1": "second","2": "third"};$.map(arr,function(value,index){ //arr要遍历的数组,value遍历的值,index遍历的索引console.log(index,value)})$.map(fakeArray,function(value,index){console.log(index,value)})})