public function getFenyepage($fenyepage)
 {
     //创建一个 sqlHelper对象
     $sqlHelper = new SqlHelper();
     $sql1 = "select * from emp limit " . ($fenyepage->pageNow - 1) * $fenyepage->pagesize . "," . $fenyepage->pagesize;
     $sql2 = "select count(id) from emp";
     $sqlHelper->excute_dql_fenye($sql1, $sql2, $fenyepage);
     $sqlHelper->close_connect();
 }