如何清除Go中的终端屏幕？

Z时代
2024-01-10
分类：问答

运行GO脚本时，Golang中是否有任何标准方法可以清除终端屏幕？还是我必须使用其他一些库？

回答：

运行命令以清除屏幕不是安全的方法。在这里也检查其他答案。

您必须为每个不同的OS定义一个清晰的方法，像这样。当用户的操作系统不受支持时，它会慌乱

package main
import (
    "fmt"
    "os"
    "os/exec"
    "runtime"
    "time"
)
var clear map[string]func() //create a map for storing clear funcs
func init() {
    clear = make(map[string]func()) //Initialize it
    clear["linux"] = func() { 
        cmd := exec.Command("clear") //Linux example, its tested
        cmd.Stdout = os.Stdout
        cmd.Run()
    }
    clear["windows"] = func() {
        cmd := exec.Command("cmd", "/c", "cls") //Windows example, its tested 
        cmd.Stdout = os.Stdout
        cmd.Run()
    }
}
func CallClear() {
    value, ok := clear[runtime.GOOS] //runtime.GOOS -> linux, windows, darwin etc.
    if ok { //if we defined a clear func for that platform:
        value()  //we execute it
    } else { //unsupported platform
        panic("Your platform is unsupported! I can't clear terminal screen :(")
    }
}
func main() {
    fmt.Println("I will clean the screen in 2 seconds!")
    time.Sleep(2 * time.Second)
    CallClear()
    fmt.Println("I'm alone...")
}