【python 】文件下载进度条（装逼利器）

import requests
url = "http://mp.111ttt.cn/mp3free/81135985.mp3"

rsp = requests.get(url, stream=True)
with open(‘1.mp3‘, ‘wb‘) as f:
    for i in rsp.iter_content(chunk_size=1024):  # 边下载边存硬盘, chunk_size 可以自由调整为可以更好地适合您的用例的数字
        f.write(i)

# 下载MP3文件到本地
import os
import requests

def DownloadFile(mp3_url, save_url,file_name):
    try:
        if mp3_url is None or save_url is None or file_name is None:
            print(‘参数错误‘)
            return None
        # 文件夹不存在，则创建文件夹
        folder = os.path.exists(save_url)
        if not folder:
            os.makedirs(save_url)
        # 读取MP3资源
        res = requests.get(mp3_url,stream=True)
        # 获取文件地址
        file_path = os.path.join(save_url, file_name)
        print(‘开始写入文件：‘, file_path)
        # 打开本地文件夹路径file_path，以二进制流方式写入，保存到本地
        with open(file_path, ‘wb‘) as fd:
            for chunk in res.iter_content(chunk_size=1024):
                fd.write(chunk)
        print(file_name+‘ 成功下载！‘)
    except:
        print("程序错误")

if __name__ == "__main__":
    # MP3源地址url
    url = ‘http://mp.111ttt.cn/mp3free/81135985.mp3‘
    # MP3保存文件夹
    save_url=‘./music/‘
    # MP3文件名
    file_name = ‘mymusic‘+‘.mp3‘
    DownloadFile(url,save_url, file_name)

def DownloadFile2(mp3_url, save_url,file_name):
    try:
        if mp3_url is None or save_url is None or file_name is None:
            print(‘参数错误‘)
            return None
        # 文件夹不存在，则创建文件夹
        folder = os.path.exists(save_url)
        if not folder:
            os.makedirs(save_url)
        # 读取MP3资源
        res = requests.get(mp3_url,stream=True) 
        total_size = int(int(res.headers["Content-Length"])/1024+0.5)
        # 获取文件地址
        file_path = os.path.join(save_url, file_name)
        
        # 打开本地文件夹路径file_path，以二进制流方式写入，保存到本地
        from tqdm import tqdm
        with open(file_path, ‘wb‘) as fd:
            print(‘开始下载文件：{},当前文件大小：{}KB‘.format(file_name,total_size))
            for chunk in tqdm(iterable=res.iter_content(1024),total=total_size,unit=‘k‘,desc=None):
                fd.write(chunk)
            print(file_name+‘ 下载完成！‘)
    except:
        print("程序错误") 

# MP3源地址url
mp3_url = ‘http://mp.111ttt.cn/mp3free/81135985.mp3‘
# MP3保存文件夹
save_url=‘./music/‘
# MP3文件名
file_name = ‘少年-梦然.mp3‘
DownloadFile2(mp3_url,save_url, file_name)

for file_name,mp3_url in zip(musicnamelst[:2],musicurllst[:2]):
    DownloadFile2(mp3_url,save_url, file_name+‘.mp3‘)

for file_name,mp3_url in zip(musicnamelst,musicurllst):
    DownloadFile2(mp3_url,save_url, file_name+‘.mp3‘)