save project

diy.6_1.py

@@ -6,4 +6,5 @@ while True:
     if name==usernamea and password==userpassword
         print("登陆成功")
         break
-        print("")
\ No newline at end of file
+        print("用户名或密码错误，请重新输入！")
+print("欢迎来到贝尔世界!")
\ No newline at end of file