def <函数名>(<参数(0个或多个)>):

   <函数体>

   return <返回值>
可选参数放在不可选参数之后
*b不定参数
lambda函数返回函数名(特殊情况使用)
<函数名> lambda<参数>:<表达式>

import turtle,time

def drawGap():

    turtle.penup()

    turtle.fd(5)

def drawLine(draw):

    drawGap()

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

    turtle.fd(40)

    drawGap()

    turtle.right(90)

def drawDigit(digit):

    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):

    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("purple")

            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(-300)

    turtle.pensize(5)

    drawDate(time.strftime("%Y-%m=%d+",time.gmtime()))

    turtle.hideturtle()

    turtle.done()

main()

count = 0

def hanoi(n,src,dst,mid):

    global count

    if n == 1:

        print("{}{}->{}".format(1,src,dst))

        count+=1

    else:

        hanoi(n-1,src,mid,dst)

        print("{}{}->{}".format(n,src,dst))

        count+=1

        hanoi(n-1,mid,dst,src)

hanoi(50,"A","B","C")

print(count)

pyinstaller -i curve.ico -F SevenDigitsv1.py

#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(600,600)

    turtle.penup()

    turtle.goto(-200,100)

    turtle.pendown()

    turtle.pensize(2)

    level = 3 #

    koch(400,level)

    turtle.right(120)

    koch(400,level)

    turtle.right(120)

    koch(400,level)

    turtle.hideturtle()

main()