<>

<?

class Pages{

var $cn;//连接数据库游标

var $d;//连接数据表的游标

var $result;//结果

var $dsn;//dsn源

var $user;//用户名

var $pass;//密码

var $total;//记录总数

var $pages;//总页数

var $onepage;//每页条数

var $page;//当前页

var $fre;//上一页

var $net;//下一页

var $i;//控制每页显示

function getConnect($dsn,$user,$pass){

$this->cn=@odbc_connect($dsn,$user,$pass);

if(!$this->cn){

$error="连接数据库出错";

$this->getMess($error);

}

}

function getDo($sql){//从表中查询数据

$this->d=@odbc_do($this->cn,$sql);

if(!$this->d){

$error="查询时发生了小错误......";

$this->getMess($error);

}

return $this->d;

}

function getTotal($sql){

$this->sql=$sql;

$dT=$this->getDo($this->sql);//求总数的游标

$this->total=odbc_result($dT,'total');//这里为何不能$this->d呢？

return $this->total;

}

function getList($sql,$onepage,$page){

$this->s=$sql;

$this->onepage=$onepage;

$this->page=$page;

$this->dList=$this->getDo($this->s);//连接表的游标

$this->pages=ceil($this->total/$this->onepage);

if($this->pages==0)

$this->pages++; //不能取到第0页

if(!isset($this->page))

$this->page=1;

$this->fre = $this->page-1;//将显示的页数

$this->nxt = $this->page+1;

$this->nums=($this->page-1)*$this->onepage;

//if($this->nums!=0){

//for($this->i=0;$this->i<$pg->getNums();odbc_fetch_row($this->dd),$this->i++);//同上

//}

//$this->i=0;//为何这部分不能封装？

return $this->dList;

}

function getFanye(){

$str="";

if($this->page!=1)

$str.="<a href=".$PHP_SELF."?page=1> 首页 </a><a href=".$PHP_SELF."?page=".$this->fre."> 前页 </a>";

else

$str.="<font color=999999>首页 前页</font>";

if($this->page<$this->pages)

$str.="<a href=".$PHP_SELF."?page=".$this->nxt."> 后页 </a>";

else

$str.="<font color=999999> 后页 </font>";

if($this->page!=$this->pages)

$str.="<a href=".$PHP_SELF."?page=".$this->pages."> 尾页 </a>";

else

$str.="<font color=999999> 尾页 </font>";

$str.="共".$this->pages."页";

$str.="您正浏览第<font color=red>".$this->page."</font>页";

return $str;

}

function getNums(){

return $this->nums;

}

function getOnepage(){//每页实际条数

return $this->onepage;

}

function getI(){

return $this->i;

}

function getPage(){

return $this->page;

}

function getMess($error){//定制消息

echo"<center>$error</center>";

exit;

}

}

$pg=new Pages();

$pg->getConnect("lei","sa","star");

$pg->getTotal("select count(*) as total from xs");//连学生表求总数

$pg->getList("select xs_name from xs order by xs_id",8,$page);

if($pg->getNums()!=0){

for($i=0;$i<$pg->getNums();odbc_fetch_row($pg->dList),$i++);//同上

}

$i=0;

while(odbc_fetch_row($pg->dList)){

$name=odbc_result($pg->dList,"xs_name");

echo $name."<br>";

if($i==$pg->getOnepage()){//跳出循环

break;

}

$i++;

}

echo$pg->getFanye();

?>