【Unity】How to launch another exe placed at a relative path of the running exe.

using System;
using System.Diagnostics;
using System.IO;
using UnityEngine;


public static class Launcher
{
    /// <summary>
    /// relative pass
    /// </summary>
    private static string path = "..\\..\\..\\target.exe";

    /// <summary>
    /// launch target exe and kill self
    /// </summary>
    public static void LaunchAndKillSelf()
    {
        //move current directory
        Directory.SetCurrentDirectory(AppDomain.CurrentDomain.BaseDirectory);

        //start process
        Process process = new Process();
        process.StartInfo.FileName = path;
        process.Start();

        //kill self
        Application.Quit();
    }
}

Directory.SetCurrentDirectory(AppDomain.CurrentDomain.BaseDirectory);