json jsonp的有关问题

json jsonp的问题
请问大家，
[{"UserId":"1","NickName":"s","Password":null,"HeadPortrait":"","Hobby":"KTV","Question":null,"Answer":null}]
这是从云端返回的json，这是数组还是对象？

谢谢！
------解决思路----------------------
数组，该数组只有一个对象
------解决思路----------------------
1、返回的是字符串
2、假定该串存放于变量 data 中
则有 obj = eval('(' + data + ')')[0];
obj 即为对象 {"UserId":"1","NickName":"s","Password":null,"HeadPortrait":"","Hobby":"KTV","Question":null,"Answer":null}
------解决思路----------------------
数组，该数组只有一个对象

jsonp 

&callback=fun
响应：
fun([{"UserId":"1","NickName":"s","Password":null,"HeadPortrait":"","Hobby":"KTV","Question":null,"Answer":null}])