<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
<script>
function test1(){
var jsongood =
{"goods":[{"parentId":"null","productId":1,"name":"商品","amount":"null"},
{"parentId":1,"productId":11,"name":"水果","amount":"null"},
{"parentId":1,"productId":12,"name":"饮料","amount":"null"},
{"parentId":11,"productId":111,"name":"苹果","amount":200},
{"parentId":11,"productId":112,"name":"香蕉","amount":190},
{"parentId":11,"productId":113,"name":"梨子","amount":50},
{"parentId":12,"productId":121,"name":"红茶","amount":200},
{"parentId":111,"productId":122,"name":"绿茶","amount":200}]};
var len = jsongood.goods.length;
var arr = [];
for(var i = 0;i < len ;i ++){
if(jsongood.goods[i].name == "水果"){
var aimId = jsongood.goods[i].productId;
for(var j = 0;j < len; j ++){
if(jsongood.goods[j].parentId == aimId && jsongood.goods[j].amount > 100){
console.log(jsongood.goods[j].name + "\n" + jsongood.goods[j].productId);
arr.push(jsongood.goods[j].productId);
}
}
for(var k = 0;k < arr.length;k ++){
for(var l = 0;l < len ;l ++){
if(jsongood.goods[l].parentId == arr[k]){
console.log(jsongood.goods[l].name + "\n" + jsongood.goods[l].productId);
}
}
}
}
}
}
test1();
</script>
</head>
<body>
</body>
</html>
原文：http://www.cnblogs.com/detanx/p/6290662.html