python 字典,,1.如何交换字典 {
python 字典,,1.如何交换字典 {
1.如何交换字典 {"A":1,"B":2}的键和值?
n = {1: "a", 2: "b"}new = {v: k for k, v in n.items()}print(new)
2.
python 字典
1.如何交换字典 {"A":1,"B":2}的键和值?
n = {1: "a", 2: "b"}new = {v: k for k, v in n.items()}print(new)
2.
python 字典
评论关闭