/// <summary>
 /// 加载资源
 /// </summary>
 /// <typeparam name="LoaderType"></typeparam>
 /// <param name="groupName"></param>
 /// <param name="name"></param>
 /// <param name="path"></param>
 /// <returns></returns>
 public Resource Load <LoaderType>(string groupName, string name, string path) where LoaderType : ResourceLoader
 {
     return(_groups.Load <LoaderType>(groupName, name, path, null, null));
 }