详解Python如何通过文件后缀整理文件夹

class FileSystem:
    def __init__(self, root) -> None:
        self.fileDct = FILE_DCT

# 封装在
FILE_DCT = {
    "图片"  : [".jpg", ".png", ".jpeg", ".gif"],
    "视频"  : [".mp4", ".mkv"],
    "音乐"  : [".mp3", ".wav"],
    "文档"  : [".pdf"],
    "文本"  : [".csv", ".txt"],
    "源码"  : [".py", ".c", ".cpp", ".php"],
    "office": [".docx",".xlsx", ".pptx", ".doc", ".ppt", ".xls"],
    "压缩包": [".zip", ".tgz", ".rar", ".tar", ".7z"],
    "安装包": [".msi", ".exe"],
}

# FileSystem的成员方法，复制时注意缩进
def setExDct(self):
    self.exDct = {}
    for key in self.fileDct:
        self.exDct.update({ex:key for ex in self.fileDct[key]})

def update(self, dct):
    self.fileDct = dct
    self.setExDct()

import os
import shutil
pJoin = os.path.join
pExist = os.path.exists

    # 此为FileSystem的成员方法
    def mvFile(self, src, dst):
        if not pExist(dst):
            os.makedirs(dst)
        try:
            shutil.move(src, dst)
            return True
        except Exception as e:
            print(e)
            return False

from pathlib import Path

# FileSystem的成员方法，复制时注意缩进
# tar是准备整理的文件夹
def sortFiles(self, tar):
    files = os.listdir(tar)
    fsErr = []
    self.history = []
    for f in files:
        src = pJoin(tar, f)
        print(src)
        ex = Path(src).suffix.lower()
        if ex not in self.exDct:
            continue
        dst = pJoin(tar, self.exDct[ex])
        if self.mvFile(src, dst):
            self.history.append([src, dst])
        else:
            fsErr.append(src)
    self.setErrInfo(fsErr)

# 设置错误信息
def setErrInfo(self, fsErr):
    SUCCESS = "全部文件移动成功"
    ERROR = "以下文件移动失败：\r\n"
    if len(fsErr) == 0:
        self.errInfo = SUCCESS
    else:
        self.errInfo = ERROR + "\r\n".join(fsErr)

# FileSystem的成员方法，复制时注意缩进
def restore(self):
    fsErr = []
    for src, dst in self.history:
        if not self.mvFile(dst, src):
            fsErr.append(dst)
    self.setErrInfo(fsErr)

    @staticmethod
    def sort(tar, fileDct=None):
        fs = FileSystem()
        if fileDct:
            fs.update(fileDct)
        fs.sortFiles(tar)