中文转拼音

-(NSString )transform:(NSString )chinese
{
NSMutableString *pinyin = [chinese mutableCopy];
CFStringTransform((__bridge CFMutableStringRef)pinyin, NULL, kCFStringTransformMandarinLatin, NO);
CFStringTransform((__bridge CFMutableStringRef)pinyin, NULL, kCFStringTransformStripCombiningMarks, NO);
NSLog(@”%@”, pinyin);
return [pinyin uppercaseString];
}