auto save

diy2.py

-i=3
+i = 3
 username = "python"
 userpassword = "123456"
 while True:
     if i>0
         name = input("请输入用户名:")
         password = input("请输入密码:")
-        i-=i
+        i -= i
         if name == username and password == userpassword:
             print("登录成功!")
             break
@@ -14,4 +14,7 @@ while True:
             continue
         if password != userpassword:
             print("密码输入有误，请重新输入")
+    else:
+        print("你的账号已被锁定，别来了")
+        exit()
 print("欢迎来到贝尔编程!")
\ No newline at end of file