行 55:     <ul class="list">
行 56:         <%--显示产品数量，可以修改，建议45--%>
行 57:         <%=getProduct(45)%>
行 58:     </ul>
行 59: </div>

[NullReferenceException: 未将对象引用设置到对象的实例。]
   dianru_style_productUc.getProduct(Int32 sum) +3741
   ASP.dianru_style_dianru_red1_productuc_ascx.__Render__control1(HtmlTextWriter __w, Control parameterContainer) in d:\demo_taoke\demo_dianru\d1.dianru.net\dianru_style\dianru_red1\productUC.ascx:57
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +114
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +239
   System.Web.UI.HtmlControls.HtmlContainerControl.Render(HtmlTextWriter writer) +41
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +239
   System.Web.UI.Page.Render(HtmlTextWriter writer) +37
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +4239