lis中元素的变化顺序

Question

如何更改列表中姓名的顺序，使名字在姓氏之前？我有一份清单：

names = ['Snow, John', 'Stark, Ariya', 'Baratheon, Myrcella']

Answer 1

试试这个

>>> [', '.join(reversed(name.split(', '))) for name in names]  
['John, Snow', 'Ariya, Stark', 'Myrcella, Baratheon']

Answer 2

split按", "命名，交换名字和姓氏，join按" "。您可以在（嵌套）列表理解中执行所有这些操作：

>>> [" ".join([first, last]) for last, first in (name.split(", ") for name in names)]
['John Snow', 'Ariya Stark', 'Myrcella Baratheon']

或更短，使用reversed颠倒名字和姓氏：

^{pr2}$