save project

SB.py

+username = "python"
+username = "123456"
+while true:
+    name = input("请输入用户名")
+    passwork = input("请输入密码")
+    if name ==username and passwork == userpasswort:
+        print("登录成功")
+        break
+        print("用户名和密码错误! 请重新输入")
+        print("欢迎来到贝尔编程！")