save project

风车.py

-import turtle
+import turtle
 import turtle
 import turtle
 pen=turtle.Pen()
 pen=turtle.Pen()
 d=1
 d=1
-for i in range(600):
+pen.speed(0)
+for i in range(2700):
     pen.forward(d)
     pen.forward(d)
     d+=1
     d+=1
     pen.right(91)
     pen.right(91)