ios漢字轉拼音首字母

ios漢字轉拼音首字母   

//獲取拼音首字母(傳入漢字字符串, 返回大寫拼音首字母) - (NSString *)firstCharactor:(NSString *)aString { //轉成了可變字符串 NSMutableString *str = [NSMutableString stringWithString:aString]; //先轉換爲帶聲調的拼音  CFStringTransform((CFMutableStringRef)str,NULL, kCFStringTransformMandarinLatin,NO); //再轉換爲不帶聲調的拼音  CFStringTransform((CFMutableStringRef)str,NULL, kCFStringTransformStripDiacritics,NO); //轉化爲大寫拼音 NSString *pinYin = [str capitalizedString]; //獲取並返回首字母 return [pinYin substringToIndex:1]; }