1、算术运算：* 表示乘积运算。**表示乘方运算。print(2 * 5)print(2 ** 5)
3、*号的这种用法使得程序变得简便。fruits = ['lemon', 'pear', 'watermelon', 'tomato'](*fruits[1:], fruits[0])
5、*号用在函数中接收keyword-only的参数def get_multiple(*keys, dictionary, default=None): return [ dictionary.get(key, default) for key in keys ]fruits = {'lemon': 'yellow', 'orange': 'orange', 'tomato': 'red'}get_multiple('lemon', 'tomato', 'squash', dictionary=fruits, default='unknown')
