diy1.py

import turtle
a=turtle.Screen()
a.bgcolor("green")
b=a.textinput("你的姓名","你想要多大的")
b=int(b)
t=turtle.Pen()
t.write("你\n好",font=("Times",13,"normal"))
w=turtle.Pen()

w.right(45)
w.forward(2*b)
w.circle(b,180)
w.left(90)
w.circle(b,180)
w.forward(2*b)


w.pensize(10)
w.pencolor(red)
t.hideturtle()
turtle.done()