auto save

半圆.py

+import turtle
+import turtle
+pen=turtle.Pen()
+pen.left(45)
+pen.forward(100)
+pen.circle(50,180)
+pen.right(90)
+pen.circle(50,180)
+pen.forward(100)
+turtle.done()

画笔.py

+import turtle
+import turtle
+pen=turtle.Pen()
+pen.fillcolor("pink")
+pen.begin_fill()
+for i in range(36):
+    pen.forward(200)
+    pen.right()
+pen.end_fill()
+pen.hideturtle()
+turtle.done()
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