复制文件的小程序

 

代码

//还不支持中文文件名

#include <iostream>
#include <fstream>
#include <strstream>
using namespace std;

int main(int argc,char *argv[])
{
if (argc!=3)
{
exit(0);
}
ifstream source(argv[1],ios::binary|ios::in|ios::ate);
ofstream dest(argv[2],ios::binary|ios::out);
if (source.is_open())
{
ifstream::pos_type size=source.tellg();
cout<<size<<"bytes";
char * memblock = new char [size];
source.seekg(0,ios::beg);//pointer return to the begin
source.read(memblock,size);
source.close();//source is used up



dest.write(memblock,size);
dest.close();
}

return 0;
}
//http://www.cplusplus.com/doc/tutorial/files/

 

 

 

转载于:https://www.cnblogs.com/LOSTSOUL/archive/2010/04/30/1725099.html