ios gb2312转utf-8
+(NSString *) gb2312toutf8:(NSData *) data{NSStringEncoding enc =CFStringConvertEncodingToNSStringEncoding(kCFStringEncodingGB_18030_2000);NSString *retStr = [[NSString alloc] initWithData:data encoding:enc];return retStr;}
补充:移动开发 , IOS ,