auto save

diy1.py

 username = "HS" # 保存在服务器数据库中的用户账号（正确的账号）
 userpassword = "070625" 
-I=0
+I=3
+i=str(I)
 while True:
-    if I<3:
-        I+=1
+    if I>0:
+        I-=1
         zhanghu=input("请输入账户")
         mima=input("请输入密码")
         if username==zhanghu and userpassword==mima:
@@ -11,10 +12,12 @@ while True:
             break
         if username!=zhanghu:
             print("登陆失败,账户错误")
+            print("你还有"+str(I)+"次机会")
             continue
         if userpassword!=mima:
             print("登陆失败,密码错误")
+            print("你还有"+str(I)+"次机会")
     else:
         print("SB")
         exit()
-print("welcome to bear")
\ No newline at end of file
+print("welcome to bear")