save project

diy1.py

 import turtle
 screen = turtle.Screen()
 pen = turtle.Pen()
-len = 60
+len = screen.textinput("提示","你想要多大的爱心？")
 screen.bgcolor("light green")
 pen.penup()
 pen.goto(0,-100)
@@ -11,10 +11,10 @@ pen1 = turtle.Pen()
 pen1.pencolor("red")
 pen1.pensize(5)
 pen1.left(45)
-pen1.forward(2*len)
-pen1.circle(len,180)
+pen1.forward(2*int(len))
+pen1.circle(int(len),180)
 pen1.right(90)
-pen1.circle(len,180)
-pen1.forward(2*len)
+pen1.circle(int(len),180)
+pen1.forward(2*int(len))
 pen1.hideturtle()
 turtle.done()
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