将vector写入TXT文件

迭代vector

       vector<vector<string> > output_area_files;

        for ( int i = 0; i < testfiles.size(); i++)

       {

               vector < string > single_area_files;

              single_area_files = CTF_detect(test_image, 200, single_area_files);

              output_area_files.push_back(single_area_files);

               ofstream area_statistics_file;

              area_statistics_file.open( "AreaStatistics.txt" );

               if (!area_statistics_file)

              {

                     cout << "TXT文件不存在" << endl;

              }

               else

              {

                      for ( int i = 0; i < output_area_files.size(); i++)

                     {

                            vector < string > single_area_files = output_area_files[i];

                            for ( int j = 0; j < single_area_files.size(); j++)

                           {

                                  area_statistics_file << single_area_files[j] << "\n\r" << endl;

                           }

                     }

              }

       }