写了一个简单的模拟Windows的cmd.e…

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//源代码如下，基本的功能可以实现，注释掉的代码可以用来实现输出的重定位，就不多解释了

//如果启动一个程序需要输出到单独的控制台窗口中，则CreateProcess函数的fdwCreate传入

//CREATE_NEW_CONSOLE即可

#include<stdio.h>
#include <windows.h>
void main()
{
char cmd[200];
STARTUPINFO si={sizeof(si)};
SECURITY_ATTRIBUTES saProcess, saThread;
PROCESS_INFORMATION piProcessB;
//HANDLE f = CreateFile(("c:\\a.txt"),GENERIC_READ|GENERIC_WRITE, FILE_SHARE_WRITE, NULL,OPEN_ALWAYS,NULL, NULL);
//SetStdHandle(STD_OUTPUT_HANDLE,f);
while(TRUE)
{
  printf("%请输入需要执行的命令:");
  gets(cmd);
  if(strcmp(cmd,"exit")==0)
   break;
  saProcess.nLength =sizeof(saProcess);
  saProcess.lpSecurityDescriptor= NULL;
  saProcess.bInheritHandle =FALSE;
  saThread.nLength =sizeof(saThread);
  saThread.lpSecurityDescriptor =NULL;
  saThread.bInheritHandle =FALSE;
  if(CreateProcess(NULL, cmd,&saProcess, &saThread, FALSE, 0,NULL, NULL,&si, &piProcessB))
  {
   WaitForSingleObject(piProcessB.hProcess,INFINITE);
   printf("\n");
  }
  else
   printf("找不到这个命令!\n");
}
//CloseHandle(f);
}

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