寫一個通用的單例，並且進行資料初始化以及單例的釋放

public class TSingleton<T> where T : new()
{
    static T m_instance;
    public static  T Instance()
    {
        if (m_instance == null)
        {
            m_instance = new T();
            (m_instance as TSingleton<T>).init();
        }

        return m_instance;
    }

    ///
 
 <summary>
    /// 初次呼叫可以進行資料的初始化
    /// </summary>
    virtual protected void init()
    {

    }

    /// <summary>
    /// 單例釋放
    /// </summary>
    public void Release()
    {
        m_instance = default(T);
    }
}