save project

star.py

+a=input("边长")
+a=int(a)
 import turtle 
 import turtle 
 pen=turtle.Pen()
 pen=turtle.Pen()
-for i in range(4):
-    pen.left(1)
-    pen.forward(1)
+pen.fillcolor("red")
+pen.begin_fill()
+pen.shape("arrow")
+for i in range(234):
+    pen.left(466)
+    pen.forward(a)
+pen.end_fill()
 turtle.done()
 turtle.done()
-
+pen.hideturtle()