/// <summary>
 /// 获取课程列表
 /// </summary>
 /// <param name="context"></param>
 public void GetCourse(HttpContext context)
 {
     var zwJson = new ZwJson();
     CourseService courseService = new CourseService(_session);
     var list = courseService.GetView();
     zwJson.Data = list;
     zwJson.IsSuccess = true;
     zwJson.JsExecuteMethod = "HtmlCourse";
     context.Response.Write(_jss.Serialize(zwJson));
 }