save project

diy1.py

-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("登录成功!")
-        break
-    if name != username:
-        print("用户名不存在,请重新输入！")
-        continue 
-    if password != userpassword:
-        print("密码输入有误,请重新输入！")
-        exit()
-print("欢迎来到贝尔编程!")
+import turtle
 
-#还差了登录次数的限制，3次。记得设置。————鑫鑫老师
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+pen = turtle.Pen()
+screen=turtle.Screen()
+screen.bgcolor("light pink")
+colors=["white","blue","violet","cyan"]
+distance=1
+pen.speed(1000)
+for i in range(1,300):
+    pen.pencolor(colors[i%4])
+    pen.forward(i)
+    pen.right(91)
+pen.hideturtle()
+turtle.done()
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