save project

diy1.py

-i=3
-username="ikun"
-userpassword="1425038"
-while True:
-    if i>0:
-       name=input("请输入用户名：")
-       password=input("请输入密码：")
-       i=i-1
-       if username == name and userpassword == password:    
-           print("登录成功")    
-           break
-       if name != username:
-           print("用户名错误，请重新输入")
-           continue
-       if password != userpassword:
-           print("密码输入有误，请重新输入")
-    else:
-       print("你的账户已被锁定，请一个小时以后再来")
-       exit()
-print("欢迎来到贝尔编程世界")
+import turtle
+pen=turtle.Pen()
+pen.speed(100)
+screen=turtle.Screen()
+screen.bgcolor("black")
+colors=["green","red","orange","yellow"]
+for i in range(1,1000):
+    pen.pencolor(colors[i%4])
+    pen.forward(i)
+    pen.left(91)
    
    
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