iOS中中文转字母，直接上代码

@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