#import <Foundation/Foundation.h>
@interface NSString (Utils)
/**
* 汉字的拼音
*
* @return 拼音
*/
- (NSString *)pinyin;
@end
#import "NSString+Utils.h"
@implementation NSString (Utils)
//汉字的拼音
- (NSString *)pinyin{
NSMutableString *str = [self mutableCopy];
CFStringTransform(( CFMutableStringRef)str, NULL, kCFStringTransformMandarinLatin, NO);
CFStringTransform((CFMutableStringRef)str, NULL, kCFStringTransformStripDiacritics, NO);
return [str stringByReplacingOccurrencesOfString:@" " withString:@""];
}
@end

+ (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];
}