ios 将请求的数据以plist形式存到桌面

[[AFHTTPSessionManager manager] GET:@"url" parameters:paramDic progress:^(NSProgress * _Nonnull downloadProgress) {
        } success:^(NSURLSessionDataTask * _Nonnull task, NSDictionary *responseObject) { // 需要将responseObject的类型转化成自定类型
            [responseObject writeToFile:@"Users/计算机名/Desktop/square.plist" atomically:YES];
        } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {

        }];