泛型单例

/**
 * 泛型单例模板
where 限制这个单例类必须要能被new出来
 */
public class Singleton<T> : IDisposable where T : new()
{
    private static T instance;

    public static T Instance
    {
        get {
            if (instance == null) instance = new T();
            return instance;
        }
    }

    public virtual void Dispose()
    {
        
    }
}

使用如下

public class RoleMgr:Singleton<RoleMgr>
{
    private Dictionary<string,GameObject> m_Role = new Dictionary<string, GameObject> ();

    public GameObject LoadPlayer(string name)
    {
       ````````````````
    }

    public override void Dispose()
    {
        base.Dispose();

        m_Role.Clear ();

    }
}

// 其他类中只需要使用如下代码即可调用
RoleMgr.Instance.LoadPlayer("player");