save project

diy1.py

@@ -8,7 +8,10 @@ import turtle
 pen1 = turtle.Pen()
 pen1.pencolor("red")
 pen1.pensize(5)
-len = 20
+screen = turtle.Screen()
+
+len = int(screen.textinput("提示","请输入爱心大小："))
+
 pen1.left(45)
 pen1.forward(2*len)
 pen1.circle(len,180)