#e7.1SevenSegDisplay.py  输出当天日期

import turtle, datetime 

def drawLine(draw):   #绘制单段数码管

    turtle.pendown() if draw else turtle.penup()

    turtle.fd(40)

    turtle.right(90)

def drawDigit(digit): #根据数字绘制七段数码管

    drawLine(True) if digit in [2,3,4,5,6,8,9] else drawLine(False)

    drawLine(True) if digit in [0,1,3,4,5,6,7,8,9] else drawLine(False)

    drawLine(True) if digit in [0,2,3,5,6,8,9] else drawLine(False)

    drawLine(True) if digit in [0,2,6,8] else drawLine(False)

    turtle.left(90)

    drawLine(True) if digit in [0,4,5,6,8,9] else drawLine(False)

    drawLine(True) if digit in [0,2,3,5,6,7,8,9] else drawLine(False)

    drawLine(True) if digit in [0,1,2,3,4,7,8,9] else drawLine(False)

    turtle.left(180)

    turtle.penup()

    turtle.fd(20) 

def drawDate(date):  #获得要输出的数字

    for i in date:

        drawDigit(eval(i))  #注意: 通过eval()函数将数字变为整数

def main():

    turtle.setup(800, 350, 200, 200)

    turtle.penup()

    turtle.fd(-300)

    turtle.pensize(5)

    drawDate(datetime.datetime.now().strftime('%Y%m%d'))

    turtle.hideturtle()

main()    

运行结果: