save project

hgfd.py

-username="1"
-userpassword="1"
+username="python"
+userpassword="123456“
 name=input("请输入用户名")
 password=input("请输入用户密码")
-if username==name and userpassword==word
-    print("登录成功")
\ No newline at end of file
+    if name== username and password== password：
+        break
+    print("用户名和密码错误!请重新输入")
+else
+    print("欢迎来到贝尔编程！")