使用匿名管道做进程通信，需要用父进程创建一个子进程，该子进程的标准输入输出句柄由父进程指定。
无论父进程还是子进程，都可以收发数据，这里仅演示父进程发数据，子进程打印数据。
父进程循环从控制台读数据，并发送给子进程，子进程用对话框打印数据，约定子进程收到"quit"后退出。
父进程（发送端）
#define _CRT_SECURE_NO_WARNINGS#include <Windows.h>#include <stdio.h>HANDLE g_hRead, g_hWrite;BOOL CreateChildProcess(){// 创建可继承的匿名管道，可以理解成输入输出设备SECURITY_ATTRIBUTES sa;sa.bInheritHandle = TRUE;sa.lpSecurityDescriptor = NULL;sa.nLength = sizeof(SECURITY_ATTRIBUTES);if (!CreatePipe(&g_hRead, &g_hWrite, &sa, 0)){printf("创建匿名管道失败\n");return FALSE;}// 创建子进程，设置标准输入输出设备STARTUPINFO si;PROCESS_INFORMATION pi;ZeroMemory(&si, sizeof(STARTUPINFO));si.cb = sizeof(STARTUPINFO);si.dwFlags = STARTF_USESTDHANDLES;si.hStdInput = g_hRead;si.hStdOutput = g_hWrite;si.hStdError = GetStdHandle(STD_ERROR_HANDLE);if (FALSE == CreateProcess(TEXT("C:\\Users\\gsy\\source\\repos\\暑假学习\\Debug\\匿名管道-接收端.exe"), NULL, NULL, NULL, TRUE, 0, NULL, NULL, &si, &pi)){//printf("创建进程失败\n");CloseHandle(g_hRead);CloseHandle(g_hWrite);g_hRead = g_hWrite = NULL;return FALSE;}else{CloseHandle(pi.hProcess);CloseHandle(pi.hThread);}return TRUE;}void SendData(){char szBuffer[0x100];scanf("%s", szBuffer);DWORD dwWrite = 0;if (!WriteFile(g_hWrite, szBuffer, strlen(szBuffer) + 1, &dwWrite, NULL)){printf("写数据失败\n");}}int main(){if (CreateChildProcess()){printf("创建子进程成功，输入要发送的数据，输入quit杀死子进程\n");}else{printf("创建子进程失败\n");}while (true){SendData();}return 0;}
子进程（接收端）
#include <windows.h>#include <stdio.h>int main(){HANDLE hRead = GetStdHandle(STD_INPUT_HANDLE);HANDLE hWrite = GetStdHandle(STD_OUTPUT_HANDLE);char szBuffer[0x100];DWORD dwRead = 0;while (true){ReadFile(hRead, szBuffer, 0x100, &dwRead, NULL);if (strcmp(szBuffer, "quit") == 0){printf("quit!\n");break;}printf("%s\n", szBuffer);MessageBoxA(0, szBuffer, "子进程接收到的数据", MB_OK);}return 0;}
