auto save

diy2.py

-class Hero:  # 英雄类
-    def __init__(self, name):  # 实例属性
-        self.name = name
-        self.level = 1
-        self.hp = 250
-        self.attack = 40
-        self.max_hp = self.hp
+newi=""
+with open(r"C:\Users\mk\Desktop\新建文件夹\text.txt","w",encoding="utf-8")as file:
+    file.write("小明：12本\n")
+with open(r"C:\Users\mk\Desktop\新建文件夹\text.txt","a",encoding="utf-8")as file:
+    file.write("小李：11本\n")
+    file.write("小马：14本\n")
+with open(r"C:\Users\mk\Desktop\新建文件夹\text.txt","r",encoding="utf-8")as file:
+    for i in file:
+        if "小明：12本"in i:
+            i=i.replace("小明：12本","小明：10本")
+        newi+=i
+with open(r"C:\Users\mk\Desktop\新建文件夹\text.txt","w",encoding="utf-8")as file:
+    file.write(newi)
 
         
\ No newline at end of file
-    def combat(self, enemy):    # 攻击功能
-        info1 = self.name+"对"+enemy.name+"发起进攻，"
-        info2 = "造成"+str(self.attack)+"点伤害，"
-        enemy.hp -= self.attack
-        if enemy.hp > 0:
-            info3 = enemy.name+"还剩下"+str(enemy.hp)+"血量"
-            info = info1+info2+info3
-            print(info)
-        else:
-            info3 = enemy.name+"阵亡，游戏结束"
-            info = info1+info2+info3
-            print(info)
-            exit()
-            
-
-class Player(Hero):   # 玩家英雄
-    def __init__(self,name):
-        super().__init__(name)
-        self.hp=200
-        self.attack=50
-        
-        
-player = Player("后羿")
-print("玩家的血量值为：",player.hp)
-print("玩家的攻击力为：",player.attack)