1.获取设备语言及地区
NSString*languageName = [[NSLocalecurrentLocale]objectForKey:NSLocaleLanguageCode]; //eg:zh
NSString*langCounName = [[NSLocalecurrentLocale]localeIdentifier]; // eg:zh_CN
langCounName = [langCounNamestringByReplacingOccurrencesOfString:@"_"withString:@"-"]; //将_修改为-