20220616python或者C++将数据写入txt里面

with open('pt_resnet.txt','a+') as f:
    f.write(file + " ")
    for i in attribute:
        f.write(str("%.6f" % i) + " ")
    f.write("\n")

ofstream out_txt_file;
  out_txt_file.open("../images/test.txt", ios::out | ios::trunc);
  out_txt_file << fixed;
  cout<<roi.rows<< "  "<<roi.cols<<endl;
  for (int i = 0; i < roi.rows; i++)
  {
    for (int j = 0; j < roi.cols; j++)
    {
      int index = i * roi.cols + j;
      int b1 = (int)roi.data[3 * index + 0];
      // int g1 = (int)backImg.data[3 * index + 1];
      // int r1 = (int)backImg.data[3 * index + 2];
      out_txt_file<<b1<<" ";
      //背景
    }
  }

  // 关闭文件
  out_txt_file.close();