Unity单例模式-基类

using System;
using UnityEngine;

/// <summary>
/// 单例基类
/// </summary>
public abstract class SingletonBehaviour<T> : MonoBehaviour where T : MonoBehaviour
{
    /// <summary>
    /// 单例
    /// </summary>
    public static T Instance { get; private set; }

    /// <summary>
    /// 赋值
    /// </summary>
    public virtual void Awake()
    {
        //单例必须唯一，重复就抛错
        if (Instance != null)
            throw new Exception("Repeated Singleton");

        Instance = this as T;
    }
}