auto save

sm.py

+import turtle
+c=float(input("输入大小"))
+b=input("输入颜色")
+a=turtle.Pen()
+a.pencolor("white")
+a.pensize(10)
+a.left(45)
+a.forward(c)
+a.circle(c/2,180)
+a.right(90)
+a.circle(c/2,180)
+a.forward(c)
+d=turtle.Screen()
+d.bgcolor(b)
+a.hideturtle()
+turtle.done()
\ No newline at end of file