Golang - 在 Windows 中执行命令并且获取返回执行结果

记录一下短命令

package main

import (
	"fmt"
	"os/exec"
	"runtime"
	"syscall"
	"golang.org/x/text/encoding/simplifiedchinese"
)

type Charset string

const (
	UTF8    = Charset("UTF-8")
	GB18030 = Charset("GB18030")
)

func ConvertByte2String(byte []byte, charset Charset) string {
	var str string
	switch charset {
	case GB18030:
		var decodeBytes,_=simplifiedchinese.GB18030.NewDecoder().Bytes(byte)
		str= string(decodeBytes)
	case UTF8:
		fallthrough
	default:
		str = string(byte)
	}
	return str
}

func main() {
	cmd := exec.Command("cmd.exe", "/c", "ping", "192.168.42.221")
	if runtime.GOOS == "windows" {
		cmd.SysProcAttr = &syscall.SysProcAttr{HideWindow: true}
	}
	//Start执行不会等待命令完成，Run会阻塞等待命令完成。
	//err := cmd.Start()
	//err := cmd.Run()
	//cmd.Output()函数的功能是运行命令并返回其标准输出。
	buf, err := cmd.Output()
	cmdRe:=ConvertByte2String(buf,"GB18030")

	if err != nil {
		if exitErr, ok := err.(*exec.ExitError); ok {
			status := exitErr.Sys().(syscall.WaitStatus)
			switch {
			case status.Exited():
				fmt.Printf("Return exit error: exit code=%d\n", status.ExitStatus())
			case status.Signaled():
				fmt.Printf("Return exit error: signal code=%d\n", status.Signal())
			}
		} else {
			fmt.Printf("Return other error: %s\n", err)
		}
	} else {
		fmt.Println(string(cmdRe))
	}

}