iOS中中文转字母，直接上代码

来源：互联网发布：分区容错性知乎编辑：程序博客网时间：2024/06/05 00:50

@implementation NSString (Capital)

(NSString )firstCharactor:(NSString )aString
{
//转成了可变字符串
NSMutableString *str = [NSMutableString stringWithString:aString];
//先转换为带声调的拼音
CFStringTransform((CFMutableStringRef)str,NULL, kCFStringTransformMandarinLatin,NO);
//再转换为不带声调的拼音
CFStringTransform((CFMutableStringRef)str,NULL, kCFStringTransformStripDiacritics,NO);
//转化为大写拼音
NSString *first = [str capitalizedString];
//获取并返回首字母

if ([self isACharacter:[first substringToIndex:1]]) {
return [first substringToIndex:1];
}else {
return @”#”;
}
}

(BOOL)isACharacter:(NSString *)character
{
NSString *ZIMU = @”^[a-zA-Z]”;
NSPredicate *regextestA = [NSPredicate predicateWithFormat:@”SELF MATCHES %@”, ZIMU];

if ([regextestA evaluateWithObject:character] == YES)
{
return YES;
}
else
{
return NO;
}
}

@end

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