程序执行流程：猜数字游戏；库的使用：turtle

>>> import turtle

>>> turtle.circle(50)

>>> turtle.circle(100)

Python 3.6.5 (v3.6.5:f59c0932b4, Mar 28 2018, 17:00:18) [MSC v.1900 64 bit (AMD64)] on win32

Type "copyright", "credits" or "license()" for more information.

>>> import turtle

>>> turtle.circle(50)

>>> turtle.up()

>>> turtle.goto(0,-200)

>>> turtle.down()

>>> turtle.circle(200)

>>> turtle.write(100)

Python 3.6.5 (v3.6.5:f59c0932b4, Mar 28 2018, 17:00:18) [MSC v.1900 64 bit (AMD64)] on win32

Type "copyright", "credits" or "license()" for more information.

>>> import turtle

>>> turtle.circle(50)

>>> turtle.circle(100)

>>> turtle.goto(0,-100)

>>> turtle.circle(200)

>>> turtle.up()

>>> turtle.goto(0,-200)

>>> turtle.circle(200)

>>> turtle.clear()

>>> turtle.reset()

>>> turtle.circle(100,180)

>>> turtle.circle(100,180,steps=3)

>>> turtle.up()

>>> turtle.goto(0,60)

>>> turtle.circle(20)

>>> turtle.down()

>>> turtle.circle(20)

>>> turtle.up()

>>> turtle.goto(15,80)

>>> turtle.goto(20,90)

>>> turtle.goto(20,120)

>>> turtle.goto(20,110)

>>> turtle.circle(15)

>>> turtle.down()

>>> turtle.circle(15)

>>> turtle.hideturtle()

myNum=7

print('猜数字游戏\n')

while True:

    guess=int(input('请猜一个数:'))

    if guess>myNum:

        print('猜大了')

    elif guess<myNum:

        print('猜小了')

    else:

        print('恭喜你，猜对了！')

        break