感觉开发多人游戏，启动多窗口进行测试很常见，默认情况一次双击只能启动一个窗口，然后还得给各个窗口拖拽调整位置，很麻烦。
研究了一下，这个过程可以自动化，一键启动多个窗口，并且位置不互相遮挡。

需要一个bat脚本

@ECHO OFF
START Release/Pc/Ram.exe 0_kk
ping 127.0.0.1 -n 2
START Release/Pc/Ram.exe 1_kkk
ping 127.0.0.1 -n 2
START Release/Pc/Ram.exe 2_kkkk
ping 127.0.0.1 -n 2
START Release/Pc/Ram.exe 3_kkkkk
exit

unity内一个c#

using System.Collections;
using System.Text.RegularExpressions;
using UnityEngine;

#if UNITY_STANDALONE_WIN
using System;
using System.Runtime.InteropServices;
#endif
public class ResetScreenSize : MonoBehaviour
{
	public bool fullScreen = false;
	private static string fullScreenKey = "Full Screen";
	public int minDisplaySize = 384;
	private static int monitorWidth;
	private static int monitorHeight;

#if UNITY_STANDALONE_WIN

	[DllImport("user32.dll")]
	static extern bool SetWindowText(IntPtr hWnd, string text);

	[DllImport("user32.dll", EntryPoint = "SetWindowPos")]
	private static extern bool SetWindowPos(IntPtr hwnd, int hWndInsertAfter, int X, int Y, int cx, int cy, int uFlags);

	[DllImport("user32.dll", EntryPoint = "FindWindow")]
	public static extern IntPtr FindWindow(string className, string windowName);

	public static IEnumerator SetWindowPosition(int x, int y)
	{
		yield return new WaitForEndOfFrame();
		yield return new WaitForEndOfFrame();
		SetWindowPos(FindWindow(null, "Ram" + WindowIndex), 0, x, y, 0, 0, 5);
	}

	public static int WindowIndex = -1;
	public int WindowWidth = 512;
	public float WindowRate = 9 / 16.0f;
	public int WindowHeight = 512;
	public int WindowPosX = 0;
	public int WindowPosY = 0;

#endif
	void Awake()
	{
		string[] args = System.Environment.GetCommandLineArgs();

		// List<string> argList = new List<string>();
		// argList.Add("-window 2_asdfasdf");
		// argList.Add("-window 2|dasasdff");
		// argList.Add("-window 3|asdf");
		// argList.Add("-window 4|asdf");
		// argList.Add("-winasfsdfdow asdfsdaf");
		// string[] args = argList.ToArray();

		WindowIndex = -1;

		for (int i = 0; i < args.Length; i++)
		{
			// Debug.LogError(args[i]);
			MatchCollection matche = Regex.Matches(args[i], @"\d_\w*");
			foreach (Match item in matche)
			{
				string[] paramSplits = item.Value.Split('_');
				WindowIndex = int.Parse(paramSplits[0]);
				PlayerPrefs.SetString("LastAcount", paramSplits[1]);
			}
		}

		WindowHeight = (int) (WindowWidth * WindowRate);
		WindowPosX = WindowIndex % 2 * WindowWidth;
		WindowPosY = WindowIndex / 2 * (WindowHeight + 20);

		if (WindowIndex > -1)
		{
			SetWindowText(FindWindow(null, "Ram"), "Ram" + WindowIndex);
			CheckAndSet();
		}
	}

	void Start()
	{
		monitorWidth = Screen.resolutions[Screen.resolutions.Length - 1].width;
		monitorHeight = Screen.resolutions[Screen.resolutions.Length - 1].height;
	}

	private void CheckAndSet()
	{
		// if (PlayerPrefs.GetInt(fullScreenKey, 0) >= 1)
		// {
		// 	SetFullScreen();
		// }
		// else
		// {
		SetWindowed();
		// }
	}

	public void SetFullScreen()
	{
		Screen.SetResolution(monitorWidth, monitorHeight, true);
		fullScreen = true;
		PlayerPrefs.SetInt(fullScreenKey, 1);
		PlayerPrefs.Save();
	}

	public void SetWindowed()
	{
		SetWindowResolution();
		fullScreen = false;
		PlayerPrefs.SetInt(fullScreenKey, 0);
		PlayerPrefs.Save();
	}

	private void SetWindowResolution()
	{
		int multiplier = 1;
		if (monitorWidth >= monitorHeight)
		{
			multiplier = monitorHeight / minDisplaySize;
			if ((monitorHeight % minDisplaySize) == 0)
			{
				multiplier--;
			}
		}
		else
		{
			multiplier = monitorWidth / minDisplaySize;
			if ((monitorWidth % minDisplaySize) == 0)
			{
				multiplier--;
			}
		}

		int size = minDisplaySize * multiplier;
		if (size < minDisplaySize)
		{
			size = minDisplaySize;
		}

		Screen.SetResolution(WindowWidth, WindowHeight, false);

#if UNITY_STANDALONE_WIN

		int x = monitorWidth / 2;
		x -= size / 2;
		int y = monitorHeight / 2;
		y -= size / 2;
		StartCoroutine(SetWindowPosition(WindowPosX, WindowPosY));
		// Debug.LogError($"{WindowWidth} {WindowHeight} {WindowPosX} {WindowPosY}");
#endif
	}
}

再加一个一键关闭所有的Bat

@ECHO OFF
taskkill /f /im Ram.exe
exit

这是一个初步的大致版本。拱有缘人讨论，是否有更好的方案。
后续调整完再来更新和添加使用说明。
（萌新每日一贴