示例代码：

import asyncio
import aiohttp
import sys
sys.setrecursionlimit(100000000)  # 将递归深度限制设置为 2000
async def fetch_url(session, url, retry=3):
    try:
        semaphore = asyncio.Semaphore(25)  # 限制并发数为 10
        async with semaphore:
            async with session.post(url,headers={
                'Accept': 'application/json, text/javascript, */*; q=0.01',
                'X-Requested-With': 'XMLHttpRequest',
                'user-agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36'
            }) as response:
                if response.status == 200:
                    html = await response.text()
                    print(f"成功抓取 {url}，内容长度：{len(html)}")
                    await asyncio.sleep(5)
                    await fetch_url(session, url)
                    return html
                else:
                    print(f"抓取 {url} 失败，状态码：{response.status}")
                    if retry > 0:
                        print(f"正在重试 {url}，剩余次数：{retry}")
                        await asyncio.sleep(1)  # 等待1秒后重试
                        return await fetch_url(session, url, retry - 1)
                    else:
                        print(f"重试 {url} 失败，达到最大次数")
                        return None
    except aiohttp.ClientError as e:
        print(f"抓取 {url} 发生错误：{e}")
        if retry > 0:
            print(f"正在重试 {url}，剩余次数：{retry}")
            await asyncio.sleep(5)  # 等待1秒后重试
            return await fetch_url(session, url, retry - 1)
        else:
            print(f"重试 {url} 失败，达到最大次数")
            return None

async def fetch_all_urls(url):
    """
    异步抓取多个 URL 的内容。
    :param urls: 要抓取的 URL 列表
    :return: 抓取到的网页内容列表
    """
    # 创建一个不验证 SSL 证书的连接器
    connector = aiohttp.TCPConnector(ssl=False)
    async with aiohttp.ClientSession(connector=connector) as session:
        tasks = [fetch_url(session, i) for i in range(30)]  # 创建任务列表
        results = await asyncio.gather(*tasks)  # 并发执行所有任务
        return results

async def main():
    url = 'https://example.com'
    # 异步抓取所有 URL
    results = await fetch_all_urls(url)

    # 打印抓取结果
    for url, content in results:
        if content:
            print(f"{url} 抓取成功，内容长度：{len(content)}")
        else:
            print(f"{url} 抓取失败")

if __name__ == "__main__":
    asyncio.run(main())