如何附加NSString的数字？ [英] How to append NSString wiht number?

问题描述

我是Cocoa的新人。

我有NSString - （例如）MUSIC。我想在Array中添加一些新的NSString，
并且想要检查这样

如果MUSIC已经包含在Array中，则在Music_2之后添加Music_1上。

所以我需要能够从NSString读取整数，并将其附加+1。

感谢

解决方案

使用

  NSString * newString = [myString stringByAppendingString：[NSString stringWithFormat：@_％i，myInteger]]; 
 

如果myString是music，newString将是music_1或任何myInteger。 >



编辑：我似乎得到了另一个答案提供的相反的意思。你能澄清一下你在问什么？

I'm new in Cocoa.

I have NSString - (e.g) MUSIC . I want to add some new NSString in Array, And want to check something like this

if MUSIC already contained in Array, add Music_1 , after Music_2 and so on.

So I need to be able read that integer from NSString, and append it +1 .

Thanks

解决方案

Use

NSString *newString = [myString stringByAppendingString:[NSString stringWithFormat:@"_%i", myInteger]];

if myString is "music", newString will be "music_1" or whatever myInteger is.

EDIT: I seem to have gotten the opposite meaning from the other answer provided. Can you maybe clarify what it is you are asking exactly?

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