人生苦短，我學Python-005：函數和代碼複用

#SevenDigitsDrawV1.py
import turtle
def drawLine(draw):   #繪製單段數碼管
    turtle.pendown() if draw else turtle.penup()
    turtle.fd(40)
    turtle.right(90)
def drawDigit(digit): #根據數字繪製七段數碼管
    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):  #獲得要輸出的數字
    for i in date:
        drawDigit(eval(i))  #通過eval()函數將數字變爲整數
def main():
    turtle.setup(800, 350, 200, 200)
    turtle.penup()
    turtle.fd(-300)
    turtle.pensize(5)
    drawDate('20181010')
    turtle.hideturtle()
    turtle.done()
main()

#SevenDigitsDrawV2.py
import turtle, time
def drawGap(): #繪製數碼管間隔
    turtle.penup()
    turtle.fd(5)
def drawLine(draw):   #繪製單段數碼管
    drawGap()
    turtle.pendown() if draw else turtle.penup()
    turtle.fd(40)
    drawGap()
    turtle.right(90)
def drawDigit(d): #根據數字繪製七段數碼管
    drawLine(True) if d in [2,3,4,5,6,8,9] else drawLine(False)
    drawLine(True) if d in [0,1,3,4,5,6,7,8,9] else drawLine(False)
    drawLine(True) if d in [0,2,3,5,6,8,9] else drawLine(False)
    drawLine(True) if d in [0,2,6,8] else drawLine(False)
    turtle.left(90)
    drawLine(True) if d in [0,4,5,6,8,9] else drawLine(False)
    drawLine(True) if d in [0,2,3,5,6,7,8,9] else drawLine(False)
    drawLine(True) if d in [0,1,2,3,4,7,8,9] else drawLine(False)
    turtle.left(180)
    turtle.penup()
    turtle.fd(20)
def drawDate(date):
    turtle.pencolor("red")
    for i in date:
        if i == '-':
            turtle.write('年',font=("Arial", 18, "normal"))
            turtle.pencolor("green")
            turtle.fd(40)
        elif i == '=':
            turtle.write('月',font=("Arial", 18, "normal"))
            turtle.pencolor("blue")
            turtle.fd(40)
        elif i == '+':
            turtle.write('日',font=("Arial", 18, "normal"))
        else:
            drawDigit(eval(i))
def main():
    turtle.setup(800, 350, 200, 200)
    turtle.penup()
    turtle.fd(-350)
    turtle.pensize(5)
#    drawDate('2018-10=10+')
    drawDate(time.strftime('%Y-%m=%d+',time.gmtime()))
    turtle.hideturtle()
    turtle.done()
main()

#KochDrawV1.py

import turtle
def koch(size, n):
    if n == 0:
        turtle.fd(size)
    else:
        for angle in [0, 60, -120, 60]:
           turtle.left(angle)
           koch(size/3, n-1)
def main():
    turtle.setup(800,400)
    turtle.penup()
    turtle.goto(-300, -50)
    turtle.pendown()
    turtle.pensize(2)
    koch(600,3)     # 0階科赫曲線長度，階數
    turtle.hideturtle()
main()

1. #KochDrawV2.py
2. import turtle
3. def koch(size, n):
4.     if n == 0:
5.         turtle.fd(size)
6.     else:
7.         for angle in [0, 60, -120, 60]:
8.            turtle.left(angle)
9.            koch(size/3, n-1)
10. def main():
11.     turtle.setup(600,600)
12.     turtle.penup()
13.     turtle.goto(-200, 100)
14.     turtle.pendown()
15.     turtle.pensize(2)
16.     level = 3      # 3階科赫雪花，階數
17.     koch(400,level)     
18.     turtle.right(120)
19.     koch(400,level)
20.     turtle.right(120)
21.     koch(400,level)
22.     turtle.hideturtle()
23. main()