select top 1 Title,Articlecontent from KS_Article where tid='{$Param(0)}' and title=switch(select  datepart(weekday,getdate())){
case 1:星期天;
break;
case 2:星期一;
break;
case 3:星期二;
break;
case 4:星期三;
break;
case 5:星期四;
break;
case 6:星期五;
break;
case 7:星期六;
break;
}

这样有没有错?