save project

diy1.py

@@ -5,6 +5,6 @@ while True
     password = input("请输入密码:")
     password = input("请输入密码:")
     if name == username and password == userpassword:
     if name == username and password == userpassword:
         print("登陆成功:")   
         print("登陆成功:")   
-
-
-# 如果用户输入的账号、密码正确，提示登陆成功
+        break
+    print("用户名和用户密码错误！请从新输入")
+print("欢迎来到贝尔编程")
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