程序执行流程/布尔类型与布尔：运算猜数字游戏；库的使用：turtle

myNumber = 9

while True:
    guess=int(input())
    if guess > myNumber:
        print('>')
    elif guess < myNumber:
        print('<')
    else:
         print('=')
         break

>>> import turtle
>>> turtle.circle(50)
>>> turtle.circle(100)
>>> turtle.circle(150)

　　

>>> import turtle
>>> turtle.up()
>>> turtle.goto(0,-200)
>>> turtle.down()
>>> turtle.circle(200)
>>> turtle.up()
>>> turtle.goto(0,-150)
>>> turtle.down()
>>> turtle.circle(150)
>>> turtle.up()
>>> turtle.goto(0,-100)
>>> turtle.down()
>>> turtle.circle(100)
>>> turtle.up()
>>> turtle.goto(0,-50)
>>> turtle.down()
>>> turtle.circle(50)