书籍部分通常编号为x.x.x,例如1.2.3.如何对节号列表进行排序？
将部分编号存储为字符串列表.
# a list of strings, section numbers
ls = ['1.1', '1.10', '1.2', '1.2.3', '1.2.1', '1.9']
lists = sorted([s.split('.') for s in ls], key=lambda x:map(int, x))
# [['1', '1'], ['1', '2'], ['1', '2', '1'], ['1', '2', '3'], ['1', '9'], ['1', '10']]
r = ['.'.join(sublist) for sublist in lists]
#['1.1', '1.2', '1.2.1', '1.2.3', '1.9', '1.10']
但是,我期待的结果是,
['1.1', '1.10', '1.2', '1.2.1', '1.2.3', '1.9']