json格式问题

Question

{
"attributes" : {
},
"obj":{
code:"自定义业务code"
msg:"自定义业务描述"
},
"success" : true|false,

 "msg" : "成功|网络异常"

}
报错
Error: Parse error on line 3:
...s": {}, "obj": { code: "自定义业务code"
---------------------^
Expecting 'STRING', '}', got 'undefined'
啥意思？？

Answer 1

obj下两个属性中差一个逗号

Answer 2

少了一个逗号

Answer 3

"obj":{
code:"自定义业务code",
msg:"自定义业务描述"
},