save project

diy1.py

-username = "python"
+username = "liwenjie"
 userpassword = "123456"
 while True:
     name = input("请输入用户名:")
     password = input("请输入密码:")
     if name == username and password == userpassword:
-        print("登入成功")
+        print("登入成功！")
         break
+    print("用户名不正确，请输入用户名")
+print("欢迎来到贝尔编程!")