装备系统完结，修复并加入很多

Assets/scripts/Data/Player_SO.cs

@@ -1,4 +1,5 @@
-using UnityEngine;
+using System.Collections.Generic;
+using UnityEngine;
 
 [CreateAssetMenu(fileName = "PlayerDefaultSO", menuName = "SO_Data/PlayerSO")]
 public class Player_SO : ScriptableObject
@@ -10,6 +11,9 @@ public class Player_SO : ScriptableObject
     [SerializeField] private int player_coins;
     [SerializeField] private int player_material;
 
+    [Header("levels")]
+    [SerializeField] private int player_currentLevel;
+
     [Header("exp bottles")]
     [SerializeField] private int commonExpBottle78001;
     [SerializeField] private int mediumExpBottle78002;