C++ 文件IO操作 读写

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#include <iostream>  
#include <iomanip>
#include <fstream>  
#include <stdlib.h>
#include <vector>
using namespace std;  

typedef struct ImageList
{
    double timeStamp;
    string imgName;
}RGBList;

int main(int argc, char **argv){

    RGBList iRGBList;
    ifstream myfile;
    myfile.open(argv[1],ifstream::in);
    ofstream outfile("out.txt");

    vector<RGBList> vRGBList;
    string line;
    size_t comma = 0;
    size_t comma2=0;
    size_t comma3=0;
    string temp,rpg;
    double timeStamp;
    vector<string> vstrImageFilenamesRGB;
    vector<double> vdouTimeStampsRGB;
    if(outfile.is_open())
    {cout<<"write ready"<<endl;}
    if(myfile.is_open())
    {
     while (! myfile.eof() )
     {
        getline(myfile,line);
        if(!line.empty())
        {
        comma=line.find(' ',0);
        timeStamp=(double)atof(line.substr(0,comma).c_str());
        iRGBList.timeStamp=(double)atof(line.substr(0,comma).c_str());
        comma2=line.find('/',comma+1);
        comma3=line.find('\n',comma2+1);
        temp=line.substr(comma2+1,comma3);
        rpg=temp;
        iRGBList.imgName=line.substr(comma2+1,comma3);
        cout<<setiosflags(ios::fixed)<<timeStamp<<endl;
        cout<<rpg<<endl<<endl;
        vstrImageFilenamesRGB.push_back(rpg);
        vdouTimeStampsRGB.push_back(timeStamp);
        vRGBList.push_back(iRGBList);
       // outfile<<setiosflags(ios::fixed)<<timeStamp<<"  "<<rpg<<endl;
        }
     }
//     for (auto iter2=vdouTimeStampsRGB.begin();iter2!=vdouTimeStampsRGB.end();iter2++)
//     {
//         outfile<<setiosflags(ios::fixed)<<(*iter2)<<"  ";
//     }
//     for (auto iter=vstrImageFilenamesRGB.begin();iter!=vstrImageFilenamesRGB.end();iter++)
//     {
//         outfile<<(*iter)<<endl;
//     }
//          for (auto iter=vRGBList.begin();iter!=vRGBList.end();iter++)
//          {
//              outfile<<(*iter)<<endl;
//          }

//     for (auto val:vstrImageFilenamesRGB)
//     {
//         cout<<endl;
//     }

    myfile.close();
    outfile.close();
    cout<<"io was finished"<<ends;
    }
    else cout<<"read fail"<<endl;

return 0;
}