汉字转拼音

//*string是要转换的字符串*/

- (NSString *)transformMandarinToLatin:(NSString *)string

{

    /*复制出一个可变的对象*/

    NSMutableString *preString = [string mutableCopy];

    /*转换成成带音 调的拼音*/

    CFStringTransform((CFMutableStringRef)preString, NULL, kCFStringTransformMandarinLatin, NO);

    /*去掉音调*/

    CFStringTransform((CFMutableStringRef)preString, NULL, kCFStringTransformStripDiacritics, NO);

   

    /*多音字处理*/

    if ([[(NSString *)string substringToIndex:1] compare:@"长"] == NSOrderedSame)

    {

        [preString replaceCharactersInRange:NSMakeRange(0, 5) withString:@"chang"];

    }

    if ([[(NSString *)string substringToIndex:1] compare:@"沈"] == NSOrderedSame)

    {

        [preString replaceCharactersInRange:NSMakeRange(0, 4) withString:@"shen"];

    }

    if ([[(NSString *)string substringToIndex:1] compare:@"厦"] == NSOrderedSame)

    {

        [preString replaceCharactersInRange:NSMakeRange(0, 3) withString:@"xia"];

    }

    if ([[(NSString *)string substringToIndex:1] compare:@"地"] == NSOrderedSame)

    {

        [preString replaceCharactersInRange:NSMakeRange(0, 3) withString:@"di"];

    }

    if ([[(NSString *)string substringToIndex:1] compare:@"重"] == NSOrderedSame)

    {

        [preString replaceCharactersInRange:NSMakeRange(0, 5) withString:@"chong"];

    }

    return preString;

}