文件拷贝C++源代码

# include <iostream>
# include <fstream>
# include <cstdlib>
using namespace std;
int main()
{
 char ch;
 ifstream sfile("d:\\1.txt");
 ofstream dfile("d:\\2.txt");
 if(!sfile)
 {
  cout<<"不能打开源文件:"<<"d:\\1.txt"<<endl;
  return -1;

 
 }
 if(!dfile)
 {
  cout<<"不能打开目标文件夹:"<<"d:\\2.txt"<<endl;
  return -1;
 
 }
 sfile.unsetf(ios::skipws);
 while(sfile>>ch)
  dfile<<ch;
 sfile.close();
 dfile.close();
 return 0;