save project

diy2.py

@@ -4,6 +4,7 @@ while True:
     name = input("请输入用户名:")
     password = input("请输入密码:")
     if name == username and password == userpassword:
+        print("登录成功！")
         break
     elif name!=username:
         print("用户名输入错误，请重输")