save project

diy1.py

@@ -7,15 +7,16 @@ len=int(len)
 pen=turtle.Pen()
 pen.write("你好\nSB.",font=("Times",30,"normal"))
 pen.hideturtle()
+a=turtle.Pen()
 len=60
-pen.penup()
-pen.goto(100,100)
-pen.position()
-pen.forward(40)
-pen.circle(50,180)
-pen.forward(2*len)
-pen.circle(len,180)
-pen.right(90)
-pen.circle(len,180)
-pen.forward(2*len)
+a.penup()
+a.goto(100,100)
+a.position()
+a.forward(40)
+a.circle(50,180)
+a.forward(2*len)
+a.circle(len,180)
+a.right(90)
+a.circle(len,180)
+a.forward(2*len)
 turtle.done()