获取syscall.CreateProcess的输出

import "syscall"

var procInfo syscall.ProcessInformation

var startupInfo syscall.StartupInfo
startupInfo.dwFlags = syscall.STARTF_USESTDHANDLES
startupInfo.StdInput = syscall.Stdin
startupInfo.StdOutput = syscall.Stdout
startupInfo.StdError = syscall.Stderr

err := syscall.CreateProcess(
    nil,                    // 可执行文件路径
    syscall.StringToUTF16Ptr("command arguments"), // 命令行参数
    nil,                    // 进程安全描述符
    nil,                    // 线程安全描述符
    true,                   // 是否继承句柄
    0,                      // 创建标志
    nil,                    // 环境变量
    nil,                    // 工作目录
    &startupInfo,           // 启动信息
    &procInfo,              // 进程信息
)
if err != nil {
    // 错误处理
}

syscall.WaitForSingleObject(procInfo.hProcess, syscall.INFINITE)
var exitCode uint32
syscall.GetExitCodeProcess(procInfo.hProcess, &exitCode)

syscall.CloseHandle(procInfo.hProcess)
syscall.CloseHandle(procInfo.hThread)