diy1.py

import turtle
screen = turtle.Screen()
screen.bgcolor("light blue")
len = screen.textinput("提示","你需要多大的爱心呀")
lovesize = int(len)
pen = turtle.Pen()
pen.penup()
pen.goto(100,-100)
pen.write("Hi，诺伊，你好呀。\n我会用python写贺卡了.\n---悟空",font = ("Times",10,"normal"))
pen.hideturtle()
pen1 = turtle.Pen()
pen1.pencolor("red")
pen1.pensize(5)
pen1.left(45)
pen1.forward(2*lovesize)
pen1.circle(lovesize,180)
pen1.right(90)
pen1.circle(lovesize,180)
pen1.forward(2*lovesize)
turtle.done()