[定义](%E5%AE%9A%E4%B9%89.md) [特点](%E7%89%B9%E7%82%B9.md) [工作过程](%E5%B7%A5%E4%BD%9C%E5%8E%9F%E7%90%86.md) [request](request.md) [response](response.md) [HTTP状态码](HTTP%E7%8A%B6%E6%80%81%E7%A0%81.md) [URL](URL.md) [GET和POST的区别](GET%E5%92%8CPOST%E7%9A%84%E5%8C%BA%E5%88%AB.md) [HTTPS](HTTPS.md) [session与cookie](session%E4%B8%8Ecookie.md)