save project

diy1.py

@@ -2,6 +2,7 @@
 import turtle
 s=turtle.Screen()
 pen=turtle.Pen()
+a=s.textinput("提示","画多大的爱心？")
 s.bgcolor("light blue")
 pen.write("你好.",font=("Times",30,"normal"))
 pen.hideturtle()
@@ -10,7 +11,7 @@ pen.goto(0,-170)
 pen.pendown()
 pen.pensize(5)
 pen.pencolor("red")
-len=150
+len=int(a)
 pen.left(45)
 pen.forward(2*len)
 pen.circle(len,180)