1.py

import turtle as t 
t.bgcolor("pink")
r=eval(t.textinput("提示","请输入爱心大小"))
t.color('red')
t.pensize(5)
t.begin_fill()
t.left(45)
t.forward(r*2)
t.circle(r,180)
t.right(90)
t.circle(r,180)
t.forward(2*r)
t.end_fill()

t.up()
t.goto(-100,-50)
t.write("你好呀！诺一",font=("times",30,'normal'))
t.hideturtle()
t.done()
t.hideturtle()