4.Unity经验：Unity3d中查找一个脚本被挂在哪些预设上面

用一个脚本函数可以获取到选择的脚本文件被哪些预设和场景引用

using System.Collections.Generic;
using System.IO;
using UnityEditor;
using UnityEngine;

public class GetReference
{
    [MenuItem("Assets/Tools/GetFileReference")]
    static void GetFileReference()
    {
        string target = "";
        if (Selection.activeObject != null)
        {
            target = AssetDatabase.GetAssetPath(Selection.activeObject);
        }
        if (string.IsNullOrEmpty(target))
        {
            return;
        }
        string[] files = Directory.GetFiles(Application.dataPath, "*.prefab", SearchOption.AllDirectories);
        string[] scene = Directory.GetFiles(Application.dataPath, "*unity", SearchOption.AllDirectories);

        List