auto save

1.py

+chang = float(input("长"))
+kuan = float(input("宽"))
+if chang<0 or kuan <0:
+    print("输入有误")
+else:
+    zhouchang = (chang+kuan)*2
+    mianji = chang*kuan
+    print("周长是"+str("{:.2f}".format(zhouchang)))
+    print("面积是"+str("{:.2f}".format(mianji)))
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diy.py

-class hero:
-    def __init__(self):
-        self.level=1
-        self.hp=300
-        self.attack=2000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
+class Hero:
+    def __init__(self, name, hp, attack):
+        self.level = 1
+        self.name = name      # name:名字
+        self.hp= hp
+        self.attack= attack     # attack：攻击
+        
+    def upgrade(self):
+        self.level=self.level+1
+        self.hp = self.hp + 50
+        self.attack = self.attack + 4
+
+houyi = Hero("后羿",240,23)
+houyi.upgrade()
+print("等级为：",houyi.level)
+print("血量为：",houyi.hp)
+print("攻击力为：",houyi.attack)
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py

+chang = input
\ No newline at end of file