可变字典

 

  NSMutableDictionary *dic2 = [NSMutableDictionary dictionaryWithObjectsAndKeys:@"雨松MOMO",@"name",@"15810463139",@"number", nil];

//    //取key值

    [dic2 removeObjectForKey:@"name"];

//    //删除字典中所有元素

    [dic2 removeAllObjects];

//    //删除字典中key值为name的值

    [dic2 objectForKey:@"name"];

//    //添加另外一个数组

    [dic2 setDictionary:dic];

//    NSLog(@"%@",dic2);