7. 输入和while循环

函数input()的工作原理

• input()让程序暂停运行，等待用户输入一些文本

    height = input('How tall are you')
    height = int(height)
    if height >= 180:
        print('You are tall enough to ride')
    else:
        print('\nYou will be able to ride when you are a little older')

使用while循环

• while循环不断运行，直到指定的条件不满足为止
• break退出循环
• continue退出当前循环，继续下一次循环

    current_number = 1
    while current_number <= 5:
        print(current_number)
        current_number += 1