如何循环JSON对象？

Question

我有这个JSON对象：

{"time":"123456789", "raw":"chat_history", "data":{
"msg":[
 {"time":1111111111, "user":"user1", "text":"text from user1"},
 {"time":2222222222, "user":"user2", "text":"text from user2"},
 {"time":3333333333, "user":"user3", "text":"text from user3"},
 {"time":4444444444, "user":"user4", "text":"text from user4"}
]
}}

我必须创建一个FOR来循环data.msg的元素并打印它：

我会用FOR：

打印这些结果

11111111111 - user1 - text from users1
22222222222 - user2 - text from users2
33333333333 - user3 - text from users3
44444444444 - user4 - text from users4

你能帮帮我吗？

非常感谢

Answer 1

for(var i = 0; i < data.msg.length; i++)
{
    var row = data.msg[i];
    print(row.time + ' - ' + row.user + ' - ' + row.text);
}

Answer 2

var msg = yourJsonObject.data.msg;

for (var i = 0, len = msg.length; i < len; i++) {
  // document.write only for example
  document.write(msg[i].time + ' - ' + msg[i].user + ' - ' + msg[i].text);
}