修改后的代码:
//类定义部分
public class New_voc : System.Web.UI.UserControl
{
static public DateTime LastUpdateTime = new DateTime(2000,1,1);
//其他代码
}
//Global.ascx.cs文件
protected void Application_Start(Object sender, EventArgs e)
{
New_voc.LastUpdateTime = new DateTime(2000,1,1);
}