diy1.py

import turtle
penl=turtle.Pen()
screen=turtle.Screen()
screen.bgcolor("light yellow")
pen=turtle.Pen()
pen.penup()
pen.goto(-100,-100)
pen.write("hi",font=("Times",50,"normal"))
len=100
penl.pencolor("red")
penl.pensize(5)

len=int(screen.textinput("大小","输入爱心大小11"))
penl.left(45)
penl.forward(2*len)
penl.circle(len,180)
penl.right(90)
penl.circle(len,180)
penl.forward(2*len)
turtle.done()