page in page out

"Page in page out" 是指操作系统中的一种内存管理方式，也称为页面置换。当物理内存不足时，操作系统会将暂时不用的页面从物理内存中调出到硬盘的虚拟内存中，以释放出空间供其他程序使用，这个过程称为 "page out"。当需要访问已经被调出的页面时，操作系统会将其重新调入物理内存，这个过程称为 "page in"。

相关问题

postman404 page not found

If you are encountering a "404 page not found" error in Postman, it typically means that the requested resource or API endpoint was not found on the server. Here are some things you can try to troubleshoot the issue:

1. Double-check the URL: Make sure the URL you are trying to access is correct and complete. Check for any typos or missing parameters.

2. Check the server logs: The server logs might provide more information about the error. Check the server logs to see if there are any errors or clues about what might be causing the issue.

3. Check the API documentation: Check the API documentation to make sure that the endpoint you are trying to access is still available and that you are using the correct HTTP method and parameters.

4. Check the server status: Check the server status to see if there are any outages or maintenance scheduled. If the server is down, you may need to wait until it is back up and running.

5. Contact the API provider: If none of the above steps work, reach out to the API provider's support team for assistance. They may be able to provide more information or help you troubleshoot the issue.

in <module> b = parse_detail_page(t)IndexError: list index out of range

这个错误提示表明在 `parse_detail_page` 函数中出现了下标越界的错误。具体来说，可能是在取某个列表的元素时下标超出了列表的索引范围。

可以在出现问题的语句前面添加一些调试代码来查看具体的问题。例如，在这个函数的开头可以添加以下代码：

def parse_detail_page(html):
    soup = BeautifulSoup(html, 'lxml')
    # 调试代码
    print(soup)
    print(soup.select('.lemmaWgt-promotion-rightPreciseAd'))
    # ...

这样可以输出 `soup` 对象和 `soup.select('.lemmaWgt-promotion-rightPreciseAd')` 的结果，以确定出问题的地方在哪里。