public void ProcessRequest(HttpContext context)
        {
            context.Response.ContentType = "text/plain";
            //context.Response.Write("Hello World");
            string  courseID, courseName, courseType, courseDesc;
            decimal courseCredit;

            courseID     = context.Request["courseID"].ToString();
            courseName   = context.Request["courseName"].ToString();
            courseType   = context.Request["courseType"].ToString();
            courseDesc   = context.Request["courseDesc"].ToString();
            courseCredit = Decimal.Parse(context.Request["courseCredit"].ToString());
            Model.CourseInfo course = new Model.CourseInfo();
            course.courseCredit = courseCredit;
            course.courseDesc   = courseDesc;
            course.courseID     = courseID;
            course.courseName   = courseName;
            course.courseType   = courseType;
            BLL.CourseInfo courseServer = new BLL.CourseInfo();
            bool           isSueecss    = courseServer.Update(course);

            if (isSueecss)
            {
                context.Response.Write("ok");
            }
            else
            {
                context.Response.Write("不ok");
            }
        }
        public void ProcessRequest(HttpContext context)
        {
            context.Response.ContentType = "text/plain";
            //context.Response.Write("Hello World");
            string id = context.Request["courseID"].ToString();

            BLL.CourseInfo   courseServer = new BLL.CourseInfo();
            Model.CourseInfo course       = courseServer.GetModel(id);
            string           json         = new System.Web.Script.Serialization.JavaScriptSerializer().Serialize(course);

            context.Response.Write(json);
        }