copy文件夹，通过C++读取系统、用户名以及计算机名的方法

#include <Windows.h>
void copyself()
{
char szselfname[MAX_PATH]={0};
char szwindowspath[MAX_PATH]={0};
bool s;
GetModuleFileName(NULL,szselfname,MAX_PATH);
//     GetWindowsDirectory(szwindowspath,MAX_PATH);
//     GetSystemDirectory(szsystempath,MAX_PATH);
//     strcat(szwindowspath,"\\backdoor.exe");
//     strcat(szsystempath,"\\backdoor.exe");
strcat(szwindowspath,"D:\\shit.exe");
//     CopyFile(szselfname,szwindowspath,FALSE);
bool m=CopyFile(szselfname,szwindowspath,TRUE);
while(m!=true)
{
strcat(szwindowspath,"2.exe");
m=CopyFile(szselfname,szwindowspath,TRUE);

}

}

#include <Windows.h>
#include <stdio.h>
void getversion()
{
char szcom[MAXBYTE]={0};
char szuserna[MAXBYTE]={0};
unsigned long nsize=MAXBYTE;
OSVERSIONINFO osver;
osver.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
GetVersionEx(&osver);
if(osver.dwPlatformId == 2)
{
if(osver.dwMajorVersion == 5 && osver.dwMinorVersion == 1)
{
printf("xp\n");
}
if(osver.dwMajorVersion == 5 && osver.dwMinorVersion == 2)
{
printf("windows 2003\n");
}
if(osver.dwMajorVersion ==  6 && osver.dwMinorVersion == 0)
{
printf("vista and 2008\n");
}
if(osver.dwMajorVersion ==  6 && osver.dwMinorVersion == 1)
{
printf("2008 R2 and Windows 7\n");
}
}
GetComputerName(szcom,&nsize);
GetUserName(szuserna,&nsize);
printf("computer name is %s \n username is %s",szcom,szuserna);

}