save project

diy2.py

+i == 3
 username = "123456"
 userpassword = "123456"
 while True:
+    if i>0:
         name = input("请输入用户名:")
         password = input("请输入密码:")
+        i-=1
         if name == name and password == userpassword:
             print("登录成功!")
             break
@@ -10,4 +13,6 @@ while True:
             print("用户名错误")
         else:
             print("密码错误")
+    else:
+        print("账户已锁定")
 print("欢迎来到贝尔编程!")
\ No newline at end of file