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

number = 7

while True:
     guess =int(input())
     if guess > number:
         print('>')
     elif guess < number:
           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)

　　

>>> import turtle
>>> turtle.forward(100)
>>> turtle.left(90)
>>> turtle.forward(100)
>>> turtlr.left(90)
>>> turtle.left(90)
>>> turtle.forward(100)
>>> turtle.left(90)
>>> turtle.forward(100)