往NSMuArray和NSMutableDictionary填充数据

三种方法，相同效果；

NSMutableDictionary *parDic = [[NSMutableDictionary alloc] init];

    [parDic setValue:@"616" forKey:@"id"];

&

[parDic setObject:@"616" forKey:@"activity_id"];

&

parDic = @{@"activity_id":@"616"};

数组

NSArray *array = [[NSArray alloc] initWithObjects:@"One",@"Two",@"Three",@"Four",nil];

array = @[@"65465",@"54556456",@"1221"];

可变数组除了声明时可以直接添加多个，后面只能一个一个的添加；

NSMutableArray *arr = [[NSMutableArray alloc] init];

 [arr addObject:@"652626"];