C# 单例单例属性

不做过多解释，非面向大众

using System;
namespace EasyAVG
{public static class SingletonProperty<T> where T : class{private static readonly object locker = new object();private volatile static T instance = null;public static T Instance{get{if (instance == null){lock (locker){if (instance == null){instance = Activator.CreateInstance<T>();}}}return instance;}}public static void Unload() => instance = null;public static void Reload() => instance = Activator.CreateInstance<T>();}}

namespace EasyAVG
{public abstract class Singleton<T> where T : Singleton<T>{public static T Instance => SingletonProperty<T>.Instance;protected Singleton() { }public static void Unload() => SingletonProperty<T>.Unload();public static void Reload() => SingletonProperty<T>.Reload();}}

Unity Mono单例 /单例属性模板

using UnityEngine;
namespace EasyAVG
{public static class MonoSingletonProperty<T> where T : MonoBehaviour{private static T instance = null;public static T Instance{get{if (instance == null) InitializeAfterSceneLoad();return instance;}}public static void InitializeAfterSceneLoad(){if (instance != null) return;GameObject container = new GameObject(typeof(T).Name);UnityEngine.Object.DontDestroyOnLoad(container);instance = container.AddComponent<T>();}public static void Unload(){UnityEngine.Object.Destroy(instance.gameObject);instance = null;}public static void Reload(){Unload();InitializeAfterSceneLoad();}}}

using UnityEngine;namespace EasyAVG
{public class MonoSingleton<T> : MonoBehaviour where T : MonoSingleton<T>{protected MonoSingleton() { }public static T Instance => MonoSingletonProperty<T>.Instance;public static void SingletonInitializeAfterSceneLoad() => MonoSingletonProperty<T>.InitializeAfterSceneLoad();public static void Unload() => MonoSingletonProperty<T>.Unload();public static void Reload() => MonoSingletonProperty<T>.Reload();}
}