如何在Windows中删除自身（可执行文件）？

Question

package main

import "os"

func main() {
    err := os.Remove(os.Args[1])
    if err != nil {
        panic(err)
    }
}

Compile this

GOOS=windows GOARCH=386 go build test.go

Then run on wine

Z:\tmp>test.exe test.exe
fixme:process:SetProcessPriorityBoost (0xffffffff,1): stub
panic: remove test.exe: Access denied.

goroutine 1 [running]:
panic(0x462c40, 0x5b3f9ca0)
    /usr/local/go/src/runtime/panic.go:500 +0x331
main.main()
    /tmp/test.go:8 +0x70

Z:\tmp>fixme:console:CONSOLE_DefaultHandler Terminating process 8 on event 0

I think "ok, it's wine" and run in Win XP on VirtualBox. But that's error in Windows return.

//Sorry for my english.

Answer 1

Using CreateProcess function, as can be written in Go by using syscall package:

package main

import (
    "fmt"
    "syscall"
    "os"
)

func main() {
    // write your code here 
    // <----
    fmt.Println("Blah Blah Blah")
    // ---->
    var sI syscall.StartupInfo
    var pI syscall.ProcessInformation
    argv := syscall.StringToUTF16Ptr(os.Getenv("windir")+"\\system32\\cmd.exe /C del "+os.Args[0])
    err := syscall.CreateProcess(
        nil,
        argv,
        nil,
        nil,
        true,
        0,
        nil,
        nil,
        &sI,
        &pI)
    if err != nil {
        fmt.Printf("Return: %d
", err)
    }
}