NSString *str = @"付森";
CFStringRef cfStr = (__bridge CFStringRef)str;
CFMutableStringRef string = CFStringCreateMutableCopy(NULL, 0, cfStr);
CFStringTransform(string, NULL, kCFStringTransformMandarinLatin, NO);
CFStringTransform(string, NULL, kCFStringTransformStripDiacritics, NO);
NSLog(@"%@",string);
打印结果是 fu sen