Unity Editor 获得某一目录下所有Prefab

LoadDirectoryPrefab.cs

public static List<GameObject> LoadDirectoryPrefab(string rootPath)
{
    var dictoryInfo = new DirectoryInfo(rootPath);
    if (!dictoryInfo.Exists) return null;

    var ret = new List<GameObject>();
    FileInfo[] fileInfos = dictoryInfo.GetFiles("*.prefab", SearchOption.AllDirectories);

    EditorUtility.DisplayProgressBar("加载Prefab中...", "开始加载", 0f);

    int i = 0;
    foreach (FileInfo files in fileInfos)
    {
        string path = files.FullName;
#if UNITY_STANDALONE_WIN
        string assetPath = path.Substring(path.IndexOf("Assets\\"));
#else
        string assetPath = path.Substring(path.IndexOf("Assets/"));
#endif

        EditorUtility.DisplayProgressBar("加载Prefab中...", assetPath, ++i * 1.0f / fileInfos.Length);

        GameObject prefab = AssetDatabase.LoadAssetAtPath<GameObject>(assetPath);
        ret.Add(prefab);
    }

    EditorUtility.ClearProgressBar();
    return ret;
}