文件夹处理的查找操作

Question

请问这个错误类型是什么意思？要怎么修改内容 不是很懂关于这里？

Answer 1

注意：

1. 字符串后4位应为[-4:]
2. with段缩进调整
3. 搜索strkey缩进调整
4. 函数应返回filepathlist

import os


def findfiles(path, strkey):
    filepathlist = []
    txt = ""
    dir_files = os.walk(path)
    for toppath, subpath, fileslist in dir_files:
        for file in fileslist:
            if file[-4:] == ".txt":
                file_path = os.path.join(toppath, file)
                with open(file_path, "r", encoding="utf-8") as f:
                    txt = f.read()
            if strkey in txt:
                filepathlist.append(file_path)
    return filepathlist


path = "/Users/apple/Desktop/python/python文件练习"
strkey = "沧海"
fileslist = findfiles(path, strkey)
print(fileslist)