save project

diy1.py

 # 悟空想海龟作图画出弹簧隧道，但是出现了bug，运行不了，请你帮助他，修改bug~
 import turtle 
-
+import random
+list_1 = ['blue','black','white','pink','red','green','yellow',]
 pen=turtle.Pen()
 screen=turtle.Screen()
 pen.speed(100)
 pen.hideturtle()
-screen.bgcolor('black')
+screen.bgcolor('lightblue')
 
 i=0
 while i<180:
-    pen.pencolor('pink')
+    a = random.choice(list_1)
+    pen.pencolor(a)
     pen.penup()
     pen.goto(0,0)
     pen.forward(200)