iOS 去除JSON里的转义字符

//iOS 去除JSON里的转义字符

//    首先将返回格式设为二进制格式

    manager.responseSerializer = [AFHTTPResponseSerializerserializer];

//    其次第一种方法去除转义字符

        NSString * str = [[NSStringalloc]initWithData:responseObjectencoding:NSUTF8StringEncoding];

        

        NSMutableString * responseString = [NSMutableStringstringWithString:str];

             NSString *character = nil;

            for (int i =0; i < responseString.length; i ++) {

                    character = [responseString substringWithRange:NSMakeRange(i,1)];

                    if ([character isEqualToString:@"\\"])

                            [responseString deleteCharactersInRange:NSMakeRange(i,2)];

                 }

        

        NSData * data = [responseStringdataUsingEncoding:NSUTF8StringEncoding];

        NSDictionary * dataDic = [NSJSONSerializationJSONObjectWithData:data options:NSJSONReadingMutableContainerserror:nil];

//    第二种方法去除转义字符

        NSString * str = [[NSStringalloc] initWithData:responseObjectencoding:NSUTF8StringEncoding];

        str = [str stringByReplacingOccurrencesOfString:@"\r\n"withString:@""];

        str = [str stringByReplacingOccurrencesOfString:@"\n"withString:@""];

        str = [str stringByReplacingOccurrencesOfString:@"\t"withString:@""];

//        str = [str stringByReplacingOccurrencesOfString:@"\\" withString:@""];

        

        NSData * data = [strdataUsingEncoding:NSUTF8StringEncoding];

        NSDictionary * dataDic = [NSJSONSerializationJSONObjectWithData:data options:NSJSONReadingMutableContainerserror:nil];