import os.path

import re

# 1 遍历指定目录，显示目录下的所有文件名

def each_file(file_path):

    path_dir = os.listdir(file_path)
　　# 将得到列表内的文件排序（因为自己要读取的文件类型是1.out，2.out,3.out......这样的，所以可以切片排序）

    path_dir.sort(key = lambda x: x.split('.'[0]))

    for one_dir in path_dir:

        print(one_dir)

        one_dir_path = os.path.join('%s/%s' % (file_path, one_dir))

        if os.path.isfile(one_dir_path):

            read_file(one_dir_path)

            continue

        each_file(one_dir_path)

# 2 匹配出所需的内容,并写入指定文档

def read_file(filename):

    fopen = open(filename, 'r')

    fwrite = open("sp.txt", 'a')

    file_read = fopen.read()

    ret = re.findall(r"\\(HF=.+?)\\", file_read)

    if not ret:

    	fwrite.write(filename + "计算结果有误" + "\n")

    for sp in ret:

        fwrite.write(filename + sp + "\n")

    fwrite.close()

    fopen.close()

if __name__ == "__main__":

    # 清除sp.txt内存在的内容

    if os.path.exists('/home/python/Desktop/rw/sp.txt'): # 此路径为存放此段代码的目录

        fwrite = open("sp.txt", 'w')

        fwrite.truncate()

    filenames = input("请输入文件的绝对路径：")

    each_file(filenames)