auto save

diy2.py

 username = "python"
 username = "python"
 userpassword = "123456"
 userpassword = "123456"
+i=3
 while True:
 while True:
+    if i != 0:
         name = input("请输入用户名:")
         name = input("请输入用户名:")
         if name != username:
         if name != username:
             print("用户名错误，请重新输入！")
             print("用户名错误，请重新输入！")
+            i-=1
             continue
             continue
         password = input("请输入密码:")
         password = input("请输入密码:")
         if password != userpassword:
         if password != userpassword:
             print("密码错误，请重新输入！")
             print("密码错误，请重新输入！")
+            i-=1
             continue
             continue
         break
         break
+    else:
+        print("账号已锁定！")
+        exit()
 print("欢迎来到贝尔编程!")
 print("欢迎来到贝尔编程!")
\ No newline at end of file