save project

diy1.py

@@ -9,14 +9,15 @@ pen.write("你好呀",font=("Times",30,"normal"))
 pen.hideturtle()
 
 pen1=turtle.Pen()
-len=100
+len=screen.textinput("提示","多大？")
+a=int(len)
 pen1.pencolor("red")
 pen1.pensize(5)
 pen1.left(45)
-pen1.forward(2*len)
-pen1.circle(len,180)
+pen1.forward(2*a)
+pen1.circle(a,180)
 pen1.right(90)
-pen1.circle(len,180)
-pen1.forward(2*len)
+pen1.circle(a,180)
+pen1.forward(2*a)
 pen1.hideturtle()
 turtle.done()
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