小编Man*_*ill的帖子

我怎样才能获得数组的所有索引，

[  
   {  
      "name":"aloha",
      "age":"18"
   },
   {  
      "name":"hello word"
   },
   {  
      "name":"John Doe",
      "age":"28"
   }
]

输出应该像[0,1,2]