json的遍历

时间:2023-11-28 15:02:38

第一种json结构:

var jsongood =
{"goods":[{"parentId":"null","productId":1,"name":"商品","amount":"null"},{"parentId":1,"productId":11,"name":"水果","amount":"null"}]};

  

遍历的方法是:

for(var i = 0;i < jsongood.goods.length; i ++){
alert(jsongood.goods[i].amount);}

第二种json结构:

var jsongood =
{"parentId":"null","productId":1,"name":"商品","amount":"null"}

遍历方法:

function getJsonLength(jsonobj){
var length = 0;
for(var i in jsonobj){
length ++;
}
return length;
}
getJsonLength(jsongood)