目标c -格式说明错误

Question

我得到错误消息:expected ':'可能是因为下面的短语initWithTitle:@"You downloaded %i boards", iboard。你能帮我修一下吗?

UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"You downloaded %i boards", iboard message:@"Press Ok to continue" delegate:self cancelButtonTitle:@"Ok" otherButtonTitles:nil];
            [alert show];

Answer 1

Replace

initWithTitle:@"You downloaded %i boards", iboard 

initWithTitle:[NSString stringWithFormat:@"You downloaded %i boards", iboard]

Answer 2

你的代码搞得一团糟。

UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"You downloaded %i boards", iboard message:@"Press Ok to continue" delegate:self cancelButtonTitle:@"Ok" otherButtonTitles:nil];

应该是:

UIAlertView *alert = [[UIAlertView alloc] initWithTitle:[NSString stringWithFormat:@"You downloaded %i boards", iboard]
                                                message:@"Press Ok to continue" 
                                               delegate:self 
                                      cancelButtonTitle:@"Ok" 
                                      otherButtonTitles:nil];