auto save

3.py

@@ -2,6 +2,8 @@
 import turtle
 import turtle
 screen=turtle.Screen()
 screen=turtle.Screen()
 screen.bgcolor("light blue")
 screen.bgcolor("light blue")
+len1=screen.textinput("提示","输入大小：")
+len=int(len1)
 pen= turtle.Pen()
 pen= turtle.Pen()
 pen.penup()
 pen.penup()
 pen.goto(100,-100)
 pen.goto(100,-100)
@@ -11,11 +13,11 @@ pen1=turtle.Pen()
 pen1.pencolor("red")
 pen1.pencolor("red")
 pen1.pensize(10)
 pen1.pensize(10)
 pen1.left(45)
 pen1.left(45)
-pen1.forward(100)
-pen1.circle(50,180)
+pen1.forward(2*len)
+pen1.circle(len,180)
 pen1.right(90)
 pen1.right(90)
-pen1.circle(50,180)
-pen1.forward(100)
+pen1.circle(len,180)
+pen1.forward(2*len)
 
 
 turtle.done()
 turtle.done()
 pen.hideturtle()
 pen.hideturtle()
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