中科新闻网社交app推广方案:这个不理解
来源：百度文库 编辑：中科新闻网 时间：2024/07/06 14:31:36
rs.open "select wq_action.actionid,wq_action.bookid,wq_action.bookcount,wq_action.zonger,wq_action.shjiaid,wq_books.bookname,wq_books.shichangjia,wq_books.huiyuanjia,wq_books.vipjia from wq_books inner join wq_action on wq_books.bookid=wq_action.bookid where wq_action.username='"&username&"' and wq_action.zhuangtai=7",conn,1,1 这个join in 有什么用.这句话又应怎样理解