save project

diy1.py

@@ -6,14 +6,15 @@ pen.goto(100,-100)
 pen.write("你好\n举头望明月，\n低头思故乡。.",font=("Times",30,"normal"))
 pen.write("你好\n举头望明月，\n低头思故乡。.",font=("Times",30,"normal"))
 pen.hideturtle()
 pen.hideturtle()
 pen1=turtle.Pen()
 pen1=turtle.Pen()
+len=50
 pen1.pensize(5)
 pen1.pensize(5)
 pen1.color("red")
 pen1.color("red")
 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)
 pen1.hideturtle()
 pen1.hideturtle()
 import turtle
 import turtle
 screen=turtle.Screen()
 screen=turtle.Screen()