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 = 23
 
while True:
    guess = int(input('请输入一个数字：'))
    if guess > number:
        print('>')
    elif guess < number:
        print('<')
    else:
        print('=')
        break

import turtle
turtle.circle(100)
turtle.circle(90)
turtle.circle(80)
turtle.circle(70)
turtle.circle(60)
turtle.color('red')