C#服务器端读写cookie

通过js读写cookie，大家都知道，在服务器端，怎么读写cookie呢？

读cookie：

string cookie = context.Request.Cookies["guid"] == null ? "" : context.Request.Cookies["guid"].Value as string;

写cookie：

string cookie = Guid.NewGuid().ToString();
HttpCookie objCookie = new HttpCookie("guid", cookie);
objCookie.Expires = DateTime.MaxValue;
context.Response.Cookies.Add(objCookie);

keyword:服务器端读写cookie，HttpCookie