M3U8 文件替换：针对 '#YUMING|https' 开头的文件处理

根据代码中的注释，'media_'并不是一个 URL，而是一个文件名的一部分。因此，代码中针对以 '#YUMING|https' 开头的 m3u8 文件对 'media_' 的替换部分是没有问题的。

如果您想要替换的是 URL 而不是文件名的一部分，可以将代码中的以下行：

if 'media_' in line:
    new_lines.append(line.replace('media_', new_url + 'media_'))

替换为：

if 'http' in line and '/-/' in line:
    new_lines.append(line[:line.index('http')] + new_url + line[line.index('/-/')+3:])

这个代码块会替换所有以 'http' 开头且以 '/-/' 结尾的 URL，将其替换为新的 URL。

以下是完整代码：

import os
import requests

headers = {
    'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36',
    'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8',
    'Accept-Language': 'en-US,en;q=0.9,ja-JP;q=0.8,ja;q=0.7',
    'Cache-Control': 'no-cache',
    'Connection': 'keep-alive',
    'Pragma': 'no-cache',
    'Upgrade-Insecure-Requests': '1'
}

dir_path = input('请输入.m3u8文件所在目录的路径：')

for file_name in os.listdir(dir_path):
    if file_name.endswith('.m3u8'):
        print(f'处理文件: {file_name}')
        file_path = os.path.join(dir_path, file_name)
        with open(file_path, 'r') as f:
            lines = f.readlines()

        if '#YUMING|https' in lines[0]:
            url = lines[0][lines[0].index('https'):lines[0].index('/-/')+3]
            response = requests.post(url + 'playlist.m3u8', headers=headers)
            if response.status_code == 200:
                print('成功：' + str(response.status_code))
                new_url = response.url
                new_url = new_url[:new_url.index('playlist.m3u8')]

                # Replace all occurrences of 'media_' with the new URL
                new_lines = []
                for line in lines:
                    if 'media_' in line:
                        new_lines.append(line.replace('media_', new_url + 'media_'))
                    elif not line.startswith('#YUMING|https'):
                        new_lines.append(line)

                # Write the new lines back to the original file (except for the first line if it starts with '#YUMING|https')
                with open(file_path, 'w') as f:
                    for line in new_lines:
                        f.write(line)
            else:
                print('失效：' + str(response.status_code))

        else:
            if 'http' in lines[1]:
                url = lines[1][lines[1].index('http'):lines[1].index('/-/')+3]
            else:
                url = lines[8][lines[8].index('http'):lines[8].index('/-/')+3]

            response = requests.post(url + 'playlist.m3u8', headers=headers)
            if response.status_code == 200:
                print('成功：' + str(response.status_code))
                new_url = response.url
                new_url = new_url[:new_url.index('playlist.m3u8')]

                # Replace all occurrences of URLs between 'http' and '/-/' with the new URL
                new_lines = []
                for line in lines:
                    if 'http' in line and '/-/' in line:
                        new_lines.append(line[:line.index('http')] + new_url + line[line.index('/-/')+3:])
                    else:
                        new_lines.append(line)

                # Write the new lines back to the original file
                with open(file_path, 'w') as f:
                    for line in new_lines:
                        if not line.startswith('#YUMING|https'):
                            f.write(line)
            else:
                print('失效：' + str(response.status_code))