判断中文系统

BOOL isHanyu = [[[NSLocale preferredLanguages]objectAtIndex:0]isEqualToString:@"zh-Hans"]||[[[NSLocale preferredLanguages]objectAtIndex:0]isEqualToString:@"zh-Hant"] || [[[NSLocale preferredLanguages]objectAtIndex:0]isEqualToString:@"zh-HK"];

    [[NSUserDefaults standardUserDefaults]setBool:isHanyu forKey:My_language_isHanyu];