麻烦老师看一下代码

麻烦老师评论一下

还有文件备份为什么不使用shutil.copyfile()文件拷贝而是使用文件写入的方式

运行

import os
import hashlib
import shutil
import time


class FileBackup(object):
    skipFile = ['']
    # 忽略文件 [路径/文件名]

    skipPath = []
    # 忽略文件夹 [路径]

    updateNum = [0, 0]

    def __init__(self, src, dist):
        self.src = src.strip().rstrip('/')
        self.dist = dist.strip().rstrip('/')

        if not os.path.isdir(self.src):
            return print('> error:源文件夹不存在')

        if not os.path.isdir(self.dist):
            if not self.mkdir(self.dist):
                return print('> 备份文件夹创建失败')
            else:
                print('> 备份文件夹初始化成功')

        self.backup(self.src, self.dist)

        print('共更新: \n\t> 文件:{}\n\t> 文件夹:{}'.format(self.updateNum[0], self.updateNum[1]))

    def backup(self, src, dist):
        for item in os.listdir(src):

            path_src_dir = src + '/' + item
            path_dist_Dir = dist + '/' + item

            if os.path.isdir(path_src_dir):
                # 文件夹

                if path_src_dir in self.skipPath:
                    continue

                if not os.path.isdir(path_dist_Dir):
                    self.mkdir(path_dist_Dir)

                self.backup(path_src_dir, path_dist_Dir)
            else:
                # 文件
                if path_src_dir in self.skipFile:
                    continue

                # 文件对比
                if os.path.isfile(path_dist_Dir):
                    # 文件存在

                    srcMd5 = self.md5_file(path_src_dir)
                    distMd5 = self.md5_file(path_dist_Dir)
                    # 文件MD5对比
                    if not srcMd5 == distMd5:
                        self.backup_file(path_src_dir, path_dist_Dir)
                else:
                    # 拷贝
                    self.backup_file(path_src_dir, path_dist_Dir)

    def backup_file(self, src, dist):
        """
        文件拷贝
        :param src: 源文件
        :param dist: 备份
        :return:
        """
        try:
            shutil.copyfile(src, dist)
            print('\t拷贝成功 ' + dist)
            self.updateNum[0] += 1
        except:
            print('\t拷贝失败 ' + dist)

    def md5_file(self, path):
        """
        分段计算文件MD5
        :param path:
        :return:
        """
        m = hashlib.md5()
        with open(path, 'rb') as fo:
            while True:
                data = fo.read(1024)
                # 避免内存泄漏,分段读取
                if not data:
                    break
                m.update(data)
                # 更新MD5
            return m.hexdigest()

    def mkdir(self, path, name=None):
        """
        文件夹创建
        :param path: 路径 [路径/文件夹]
        :param name: 文件夹名 [None]
        :return: bool
        """
        if name != None:
            path = path + "/" + name

        path = path.strip().rstrip('/')

        os.mkdir(path)

        if os.path.isdir(path):
            self.updateNum[1] += 1
            print('> 文件夹创建成功 ' + path)
            return True
        else:
            return False


if __name__ == '__main__':
    # 目标路径
    src = '/Applications/XAMPP/xamppfiles/htdocs/pro/app_manage_2/application/'
    # 备份路径
    dist = "/Users/apple/Desktop/back/"

    FileBackup(src, dist)