[状态码](%E6%9E%B6%E6%9E%84%E8%AE%BE%E8%AE%A1/HTTP%E7%9B%B8%E5%85%B3.md) [请求方法](HTTP/%E8%AF%B7%E6%B1%82%E6%96%B9%E6%B3%95.md) [响应头信息](HTTP/%E5%93%8D%E5%BA%94%E5%A4%B4%E4%BF%A1%E6%81%AF.md) [http缓存相关](HTTP/header%E5%A4%B4-http%E7%BC%93%E5%AD%98%E7%9B%B8%E5%85%B3.md)