auto save

diy1.py

+import turtle
+screen=turtle.Screen()
+screen.bgcolor("green")
+Pen=turtle.Pen()
+Pen.penup()
+Pen.goto(100,0)
+Pen.write("你好\nSB。",font=("Times",30,"normal"))
+Pen.hideturtle()
+Pens=turtle.Pen()
+len=screen.textinput("要多大","xi")
+a=int(len)
+Pens.pencolor("red")
+Pens.pensize(5)
+Pens.left(45)
+Pens.forward(2*a)
+Pens.circle(a,180)
+Pens.right(90)
+Pens.circle(a,180)
+Pens.forward(2*a)
+turtle.done()
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