objective-c - 如何将带有变量的 NSString 分配给 nsstring 对象？

Question

我有以下代码:

long mins = 02; long secs = 35;
  NSString *allTime = [[NSString alloc]init];
    allTime = @"%i:%i",mins, secs ;

但它不起作用，因为当我尝试显示那个 nsstring 对象时，我得到了这个:%i:%i而不是我想得到:02:35

怎么做？谢谢!

allTime = [NSString stringWithFormat:@"%l/%l", mins, secs];
for(Playlists *thePL in collection)
    {
        NSLog(@"===NEXT PLAYLIST===");
        NSLog(@"Name: %@", thePL.namePL);
        NSLog(@"Quantity of songs: %i", thePL.entries);
        NSLog(@"Total of time: %@",thePL.allTime);
    }

总时间:l

Answer 1

您需要使用stringWithFormat，参见NSString Class Reference .

allTime = [NSString stringWithFormat:@"%d:%d",mins, secs];