{ id: "1", name: "test1", rName: "the1" },
{ id: "1", name: "test1", rName: "the2" },
{ id: "1", name: "test1", rName: "the3" },
{ id: "2", name: "test2", rName: "the1" },
{ id: "2", name: "test2", rName: "the2" },
{ id: "3", name: "test3", rName: "the1" }
]
var list2 = []
for (var i in list) {
var list3 = []
for (var j in list) {
if (list[i].id == list[j].id&&list[j].key!=1) {
list[j].key=1
list3.push(list[j])
}
}
if(list3.length>0){
list2.push(list3)
}
}
console.log(list2)
var arr = [{content: "页面设计", id:1, num:105,parentid:1},
{content: "网站使用的便捷度", id:2, num:105,parentid:1},
{content: "信息公开力度", id:3, num:105,parentid:1},
{content: "网上互动服务", id:4, num:105,parentid:1}
]
for(var i = 0 i < arr.length i++){
var obj = arr[i]
for(var key in obj){
console.log(key + ": " + obj[key])
}
}
没有啥区别啊，具体也就是，所在的语言不一样的，js属于弱类型脚本语言，java属于面向对象编程语言，js中不用明确变量的类型，一般用var 声明，js：for（var lt in list）{} java： for（声明类型 lt ：list）{} js用关键字in，java不用in用：就可
