diy.py

import turtle
screen=turtle.Screen()
screen.bgcolor("pink")
len=screen.textinput("提示","你画的爱心多大啊")
lovesize=int(len)
pen1=turtle.Pen()
pen1.penup()
pen1.goto(100,-100)
pen1.write("送你一个小心心\n你喜欢吗？",font=("Times",15,"normal"))
pen1.hideturtle()
pen=turtle.Pen()

pen.goto(0,-50)
pen.pensize(5)
pen.pencolor("red")
pen.left(45)
pen.forward(2*lovesize)
pen.circle(lovesize,180)
pen.right(90)
pen.circle(lovesize,180)
pen.forward(2*lovesize)
turtle.done()