#include <WINDOWS.H>
#include <stdio.h>

DWORD WINAPI ThreadInputProc(LPVOID lpParameter);
HANDLE hRead1=NULL,hWrite1=NULL;
HANDLE hRead2=NULL,hWrite2=NULL;

CRITICAL_SECTION g_cs;
BOOL threadFlag=FALSE;

void main()
{

    InitializeCriticalSection(&g_cs);
    SECURITY_ATTRIBUTES sa;
    sa.bInheritHandle=TRUE;
    sa.lpSecurityDescriptor=NULL;
    sa.nLength=sizeof(SECURITY_ATTRIBUTES);

    if(!CreatePipe(&hRead1,&hWrite1,&sa,0) || !CreatePipe(&hRead2,&hWrite2,&sa,0))
    {
        printf("创建管道失败");
        return;
    }
    char lzCmdline[200];
    GetSystemDirectory(lzCmdline,200);
    strcat(lzCmdline,"\\cmd.exe");
    STARTUPINFO si;
    GetStartupInfo(&si);
    si.dwFlags = STARTF_USESHOWWINDOW | STARTF_USESTDHANDLES;
    si.hStdInput = hRead1;
    si.hStdOutput = si.hStdError = hWrite2;
    si.wShowWindow = SW_HIDE;
   
    PROCESS_INFORMATION pi;
    if(!CreateProcess(lzCmdline,NULL,NULL,NULL,TRUE,0,NULL,NULL,&si,&pi))
    {
        printf("创建进程失败");
        return ;
    }
    CreateThread(NULL,0,ThreadInputProc,NULL,0,0);
    char readbuff[1024];
    memset(readbuff,0,1024);
    DWORD dwRead,dwTotalAvail = 0;
    BOOL bRet=FALSE;
    while (TRUE)
    {
        EnterCriticalSection(&g_cs);
        dwTotalAvail=0;
        if (!threadFlag)
        {
            bRet = PeekNamedPipe(hRead2, NULL, 0, NULL, &dwTotalAvail, NULL);
            if (bRet && dwTotalAvail > 0)
            {
                ReadFile(hRead2,readbuff,1024,&dwRead,NULL);
                printf("%s\n",readbuff);
                threadFlag=TRUE;
            }
        }
        LeaveCriticalSection(&g_cs);
    }
    

}


DWORD WINAPI ThreadInputProc(LPVOID lpParameter)
{
    char writebuff[100];
    DWORD dwWrite;
    while(TRUE)
    {
        EnterCriticalSection(&g_cs);
        if(threadFlag)
        {
            printf("Please Input cmd:\n");
            gets(writebuff);
            if(!WriteFile(hWrite1, writebuff, sizeof(writebuff)+1, &dwWrite, NULL))
            {
                printf("写入失败");
                return FALSE;
            }
            threadFlag=FALSE;
        }
        LeaveCriticalSection(&g_cs);
    }
    return TRUE;
}

本来想建立个双管道，创建一个cmd进程，一个管道进行cmd命令的输入（另外创建一个线程），另一个管道进行cmd执行结果的输出（主线程），但是出现问题了，在那哪？？？？求指出。。

自己顶下。。。。，只有初始化时接受到了数据，，dwTotalAvail为0，也就是就没有数据了。。。。哪里啊

哈哈，，知道哪里错了。。。。。。