diy1.py

import turtle
screen=turtle.Screen()
screen.bgcolor("light pink")  
pen=turtle.Pen()
pen.penup()
pen.goto(0,-200)
pen.write("诺依\nturtle真好用\n我也会在画布上画画了\n",font=("Times",25,"normal"))
pen.hideturtle()
pen1=turtle.Pen()
len=screen.textinput("提示","输入数字")
lovesize=int(len)
pen1.pensize(5)
pen1.color("red")
pen1.left(45)
pen1.forward(2*lovesize)
pen1.circle(lovesize,180)
pen1.right(90)
pen1.circle(lovesize,180)
pen1.forward(2*lovesize)
turtle.done()