python 使用Python baidupcsapi库进行多线程下载文件的完整修改版

import os

import threading

from baidupcsapi import PCS

# 下载文件的线程函数

def download_file(path, start, end, file_path):

"""Download a part of the file using multi-threading.

Args:

path (str): Remote file path.

start (int): Start byte position.

end (int): End byte position.

file_path (str): Local file path to save the downloaded data.

"""

pcs = PCS()

with pcs.open(path, 'rb') as f:

f.seek(start)

data = f.read(end - start + 1)

with open(file_path, 'rb+') as lf:

lf.seek(start)

lf.write(data)

# 下载文件函数

def download(path, local_file_path, num_threads=8):

"""Download a file using multi-threading.

Args:

path (str): Remote file path.

local_file_path (str): Local file path to save the downloaded file.

num_threads (int): Number of threads for multi-threading.

"""

pcs = PCS()

file_size = pcs.meta(path)['size']

part_size = file_size // num_threads

if file_size % num_threads != 0:

part_size += 1

threads = []

for i in range(num_threads):

start = i * part_size

end = min((i + 1) * part_size - 1, file_size - 1)

t = threading.Thread(target=download_file, args=(path, start, end, local_file_path))

threads.append(t)

t.start()

for t in threads:

t.join()

# 登录百度云账号并获取授权码

pcs = PCS()

pcs.login('username', 'password')

# 下载文件到本地

remote_path = '/apps/baidunetdisk/bdfilecache/xxx/xxx.jpg'

local_file_path = '/path/to/local/file'

download(remote_path, local_file_path, num_threads=8)

print(f"下载文件 '{remote_path}' 完成，已保存到本地文件 '{local_file_path}'")