save project

demo.py

 import turtle
 screen=turtle.Screen()
-len=60
 screen.bgcolor("green")
+len=turtle.textinput("爱心大小","请输入你想要的爱心大小")
+len=int(len)
+len=float(len)
 pen=turtle.Pen()
 pen.penup()
 pen.goto(0,-100)
@@ -12,7 +14,6 @@ pen1.begin_fill()
 pen1.fillcolor("red")
 pen1.pensize(5)
 pen1.pencolor("pink")
-
 pen1.left(45)
 pen1.forward(2*len)
 pen1.circle(len,180)