#include  #include  int main() { auto numArgs = 0; CommandLineToArgvW(GetCommandLineW(), &numArgs); if (numArgs > 1) { std::cout << "我是子进程" << std::endl; CHAR szBuffer[16]{ 0 }; ReadFile(GetStdHandle(STD_INPUT_HANDLE), szBuffer, sizeof(szBuffer), nullptr, nullptr); std::cout << szBuffer << std::endl; } else { std::cout << "我是父进程" << std::endl; SECURITY_ATTRIBUTES sa{ 0 }; sa.nLength = sizeof(sa); sa.bInheritHandle = TRUE; HANDLE hRead; HANDLE hWrite; CreatePipe(&hRead, &hWrite, &sa, 0); STARTUPINFOW si{ 0 }; si.cb = sizeof(si); si.hStdInput = hRead; si.dwFlags = STARTF_USESTDHANDLES; PROCESS_INFORMATION pi{ 0 }; WCHAR szCommand[512]{ 0 }; GetModuleFileNameW(nullptr, szCommand, _countof(szCommand)); wcscat(szCommand, L" test"); CreateProcessW(nullptr, szCommand, nullptr, nullptr, TRUE, CREATE_NEW_CONSOLE, nullptr, nullptr, &si, &pi); WriteFile(hWrite, "hello", 5, nullptr, nullptr); } system("pause"); return 0; }