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unity/Assets/Script/Tools/Utils/Singleton.cs

@@ -0,0 +1,17 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class Singleton<T> where T : new()
+{
+    static T instance;
+    public static T Instance
+    {
+        get
+        {
+            if (instance == null)
+                return instance = new T();
+            return instance;
+        }
+    }
+}