$.each的使用
<script>
// 1.遍历一维数组
var arr=["aa","bb","cc","dd","ee"];
$.each(arr,function(i,val){
console.log(i+'...'+val)
})
// 2.遍历二维数组
var arr1=[["aa","bb"],["cc","dd"],["ee","ff"],["gg","hh"]];
$.each(arr1,function(i,item){
console.log(i+' '+item);
// 此时可以对输出的一维数组进行遍历
$.each(item,function(i,val){
console.log(i+' '+val);
})
})
// 3.处理json.
var json1={key1:'a',key2:'b',key3:'c'};
$.each(json1,function(key,value){
console.log(key+' '+value);
})
// 4.当二维数组中有json对象时
var arr3=[{name:"star",age:"16"},{name:"star1",age:"17"},{name:"star2",age:"18"}];
$.each(arr3,function(key,val){
console.log(key+' '+val);
console.log(val.name);
console.log(val["name"]);
$.each(val,function(key,val2){
console.log(key+' '+val2);
})
})
</script>
