auto save

diy4.py

+import turtle
+screen=turtle.Screen()
+screen.bgcolor("light blue")
+pen=turtle.Pen()
+pen.up()
+pen.goto(100,-100)
+pen.write("hi!诺依\n用python写电子贺卡太有趣了\n我也很喜欢python\n------悟空",font=("Times",13,"normal"))
+pen.hideturtle()
+pen1=turtle.Pen()
+pen1.pensize(5)
+pen1.pencolor("red")
+len=60
+pen1.left(45)
+pen1.forward(2*len)
+pen1.circle(len,180)
+pen1.right(90)
+pen1.circle(len,180)
+pen1.forward(2*len)
+pen1.hideturtle()
+turtle.done()
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