从您提供的JSON， locations 是一个数组括号意味着），因此从 valueForKey：返回的值包含在NSArray实例中（因此包含在括号中）。

From the JSON you provided, locations is an array (that's what the square brackets mean), so the values that are returned from valueForKey: are contained in NSArray instances (hence the parentheses).

您可以在最后调用 valueForKey：之前使用 objectAtIndex：，以获取您要查找的值。

You could use objectAtIndex: before the last call to valueForKey: to obtain just the value you're looking for.

顺便说一下，您也可以使用 valueForKeyPath：来简化访问嵌套值，例如

By the way, you can also use valueForKeyPath: to simplify accessing nested values, for example

[deal valueForKeyPath:@"business.name"];