save project

bug.py

-# 悟空想画个六芒星魔法阵，主要的代码已写出，但这有bug，请你帮忙调试下~
-import turtle
-screen = turtle.Screen()
-pen= turtle.Pen()
-size=screen.textinput("提示","你想要多大的魔法阵呀？")
-len=int(size)
-pen.circle(len)
-pen.circle(len,360,3)
-pen.circle(len,60)
-pen.circle(len,360,3)
-turtle.done()
+username = "python"
+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("登陆成功!")
+       break
+   if name != username:
+       print("用户名错误,请从新输入!")
+       continue
+   if password != userpassword:
+       print("密码输入有误,请重新输入!")
+print("欢迎来到贝尔编程!")