一个简单的将Markdown二级标题进行排序的脚本

我在写博客《Linux的1000个命令》的时候，相对二级标题进行一下排序，方便阅读和查找，于是就有了这个小程序。

#! /usr/bin/env python3
import os
import subprocess
class BaseMethod:
    @staticmethod
    def run_cmd(cmd):
        retcode, output = subprocess.getstatusoutput(cmd)
        return retcode, output
    @staticmethod
    def write_file(filename, content):
        with open(filename, 'w', encoding='UTF-8')as tf:
            tf.write(content)
    @staticmethod
    def read_file(file_name, mode="r"):
        if not os.path.exists(file_name):
            raise IOError("No such file or directory: %s" % file_name)
        with open(file_name, mode, encoding='UTF-8')as fp:
            content = fp.read()
        return content
f="linux.md"
class SortMD:
    def __init__(self, filename):
        # self.filename = filename
        self.content = BaseMethod.read_file(filename)
        self.data = {}
    def split_now(self):
        sharp2 = self.content.split('##')
        for i in sharp2:
            if i.startswith('#'):
                self.data['sharp1'] = i
            else:
                if 'sharp2' in self.data.keys():
                    self.data['sharp2'].append('## '+i.strip('\n'))
                else:
                    self.data['sharp2'] = ['##' + i.strip('\n')]
        print(self.data)
        self.data['sharp2'].sort()
        print(self.data)
    def save2file(self, name):
        s1 = self.data['sharp1']
        s2 = "\n\n".join(self.data['sharp2'])
        data = s1 + s2
        print(data)
        BaseMethod.write_file(name, data)
def main():
    md = SortMD(f)
    md.split_now()
    md.save2file("new.md")
if __name__ == "__main__":
    main()