save project

diy1.py

@@ -2,12 +2,15 @@
 import turtle
 pen=turtle.Pen()
 len=60
+screen=turtle.Screen()
+len=screen.textinput("警告!","快说")
+a=int(len)
 pen.pencolor("red")
 pen.pensize(5)
 pen.left(45)
-pen.forward(2*len)
-pen.circle(len,180)
+pen.forward(2*a)
+pen.circle(a,180)
 pen.right(90)
-pen.circle(len,180)
-pen.forward(2*len)
+pen.circle(a,180)
+pen.forward(2*a)
 pen.done()
\ No newline at end of file