将图片写入二进制文件，再从二进制文件还原图片(c++)

 #include "string"
 #include "iostream"
 #include "fstream"
 using namespace std;
 #define MAX 20480
 void main()
 {
     string sPicPath = "E:\\10kb.jpg";
     string sSavePath = "E:\\Binary.bat";
     string sGetPic = "E:\\newpicture.png";
     ifstream fin(sPicPath.c_str(), ios::binary);
     if(!fin)
  {
         cout<<"can't open "<<sPicPath<<endl;
      return;
  }
  fin.seekg(,ios::end);//reset FilePtr Position as the end
  int ByteLen = fin.tellg();//get file length(bytes)
  cout<<"the file length : "<<ByteLen<<" Bytes"<<endl;
  fin.seekg(,ios::beg);//restore saved pos
     char pBuffer[MAX] = {};
     fin.read(pBuffer, sizeof(pBuffer));
     fin.close();
     ofstream fout(sSavePath.c_str(), ios::binary);
     if(!fout)
   return;
     fout.write(pBuffer,sizeof(pBuffer));
     fout.close();
     ifstream fins(sSavePath.c_str(), ios::binary);
  if(!fins)
  {
   cout<<"can't open "<<sSavePath<<endl;
   return;
  }
     memset(pBuffer,,sizeof(pBuffer));
     fins.read(pBuffer, sizeof(pBuffer));
     fins.close();
     ofstream fouts(sGetPic.c_str(), ios::binary);
     if(!fouts)
   return;
     fouts.write(pBuffer, sizeof(pBuffer));
  cout<<"new file path: "<<sGetPic<<endl;
     fouts.close();
 }

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