save project

diy1.py

@@ -10,13 +10,15 @@ pen.goto(100,0)
 pen.write("你好\n哈喽",font=("Times",30,"normal"))
 pen.hideturtle()
 
+len=50
+
 pen2 = turtle.Pen()
 pen2.left(45)
-pen2.forward(100)
-pen2.circle(50,180)
+pen2.forward(2*len)
+pen2.circle(len,180)
 pen2.right(90)
-pen2.circle(50,180)
-pen2.forward(100)
+pen2.circle(len,180)
+pen2.forward(2*len)
 pen2.hideturtle()