HttpHeadersCacheControl 字段
            Cache-Control 标头,指定请求/响应链上所有缓存控制机制必须服从的指令。
            
命名空间: TouchSocket.Http程序集: TouchSocket.Http (在 TouchSocket.Http.dll 中) 版本:4.0.0-beta.143+5fcca7a4e70968794985dc3793adc50531308be6
public const string CacheControl = "Cache-Control"
Public Const CacheControl As String = "Cache-Control"
static val mutable CacheControl: string
字段值
String