NSString - 替换NSCharacterSet中的字符 [英] NSString - replacing characters from NSCharacterSet

问题描述

我有一个关于字符串编程的问题：我有一个NSCharacterSet包含所有要从我的NSString删除的字符。

我该怎么办？ / p>

谢谢，
Christian

解决方案

不要太担心效率，一个简单的方法是 [[myString componentsSeparatedByCharactersInSet：myCharacterSet] componentsJoinedByString：@] 。

否则，你可以通过循环中的字符，将不在集合中的字符附加到一个新的字符串。如果你这样做，记住在你的结果使用 NSMutableString 。

I gotta little question about string Programming: I have an NSCharacterSet which contains all the characters I want to remove from my NSString.

How can I do that?

Thank you, Christian

解决方案

If you're not too worried about efficiency, a simple way would be [[myString componentsSeparatedByCharactersInSet:myCharacterSet] componentsJoinedByString:@""].

Otherwise, you could run through the characters in a loop, appending ones that weren't in the set onto a new string. If you do it that way, remember to use an NSMutableString for your result as you're building it up.

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