auto save

3.26.py

 import turtle
 import turtle
 screen=turtle.Screen()
 screen=turtle.Screen()
 screen.bgcolor('light green')
 screen.bgcolor('light green')
-pen=turtle.pen()
+pen=turtle.Pen()
 pen.penup()
 pen.penup()
 pen.goto(100,-100)
 pen.goto(100,-100)
 pen.write('你\n好\n呀',font=('times',50,'normal'))
 pen.write('你\n好\n呀',font=('times',50,'normal'))
 pen.hideturtle()
 pen.hideturtle()
 
 
-pen1=turtle.pen()
+pen1=turtle.Pen()
 pen1.pensize(5)
 pen1.pensize(5)
 pen1.pencolor('red')
 pen1.pencolor('red')
+
+len=100
 pen1.left(45)
 pen1.left(45)
-pen1.foward(100)
-pen1.circle(50,180)
+pen1.foward(2*len)
+pen1.circle(len,180)
 pen1.right(90)
 pen1.right(90)
-pen1.circle(50,180)
-pen1.foward(100)
+pen1.circle(len,180)
+pen1.foward(2*len)
 pen1.hideturtle()
 pen1.hideturtle()
 pen1.done()
 pen1.done()
 turtle.done()
 turtle.done()
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