save project

diy1.py

@@ -6,5 +6,8 @@ while True:
     if name == username and password == userpassword:
     if name == username and password == userpassword:
         print("登陆成功")
         print("登陆成功")
         break
         break
+    if name != username:
+        print("用户名不存在请重新输入")
+    if password !=userpassword:    
          print("用户名或密码错误请重新输入")
          print("用户名或密码错误请重新输入")
 print("欢迎来到贝尔编程")
 print("欢迎来到贝尔编程")
\ No newline at end of file