如何分配到的NSString对象与变量的NSString？ [英] How to assign to the nsstring object a NSString with variables?

问题描述

我有以下的code：

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

不过，这并不工作，因为当我尝试显示的NSString对象，我得到这个：％I：％I
相反的，我想：02:35

But it doesn't work, because when I try to display that nsstring object I got this: %i:%i Instead of that I want to get: 02:35

如何做到这一点？
谢谢！

How to do that ? Thank you!

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);
    }

时间总计：L

推荐答案

您需要使用 stringWithFormat ，见<一href=\"https://developer.apple.com/library/mac/#documentation/Cocoa/Reference/Foundation/Classes/NSString_Class/Reference/NSString.html\"><$c$c>NSString类参考 。

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

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