save project

diy1.py

@@ -7,13 +7,14 @@ pen.goto(100,-100)
 pen.write("实践是检验真理\n的唯一标准\n——马牛逼",font=("tines",30,"normal"))
 pen.write("实践是检验真理\n的唯一标准\n——马牛逼",font=("tines",30,"normal"))
 pen.hideturtle()
 pen.hideturtle()
 pen1=turtle.Pen()
 pen1=turtle.Pen()
+len=100
 pen1.pensize(5)
 pen1.pensize(5)
 pen1.pencolor("green")
 pen1.pencolor("green")
 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()
 turtle.done()
 turtle.done()