如何在iPhone上比较A和Á [英] How to compare A to Á on the iPhone
本文介绍了如何在iPhone上比较A和Á的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我需要比较2个字符串，只查看第一个字母。
I need to compare 2 strings, looking at the first letter only.
有一种方法来比较A和Á，并将其识别为A， '？
Is there a method to compare A to Á, and recognize it as A, without the ´?
推荐答案
NSString
NSString has a diacritic-insensitive comparison mode which will do what you're after.
// should return NSOrderedSame, i.e. identical
[@"Apple" compare:@"Ápple"
options:NSDiacriticInsensitiveSearch]
$ b b
如果你也希望它不区分大小写：
If you want it to be case-insensitive as well:
// ditto
[@"APPLE" compare:@"Ápple"
options:NSDiacriticInsensitiveSearch | NSCaseInsensitiveSearch]
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