学习要点：
1.LIMIT 用法
2.各种参数
3.超链接调用
第一：先在文件中设置数字分页模块；我的文件是（blog.php）
<span>//</span><span>分页模块</span>
<span>$_page</span> = <span>$_GET</span>['page'<span>];
</span><span>$_pagesize</span> = 10<span>;
</span><span>$_pagenum</span> = (<span>$_page</span> - 1) * <span>$_pagesize</span><span>;
</span><span>//</span><span>首页要得到所有的数据总和</span>
<span>$_num</span>=<span>mysql_num_rows</span>(_query("SELECT tg_id FROM tg_user"<span>));
</span><span>$_pageabsolute</span>=<span>$_num</span> / <span>$_pagesize</span>;要注意的是在数据库中取集的时候
//我们必须每次重新读取结果集，而不是从新去执行SQL语句。
$_result = _query("SELECT tg_username,tg_sex,tg_face FROM tg_user ORDER BY tg_reg_time DESC LIMIT $_pagenum,$_pagesize");
设置分页循环的效果
<span><div id="page_num">
<ul>
<?php <span>for</span>(<span>$i</span>=0;<span>$i</span><<span>$_pageabsolute</span>;<span>$i</span>++<span>){
</span><span>if</span> (<span>$_page</span> == (<span>$i</span>+1<span>)) {
</span><span>echo</span> '<li><a href="blog.php?page='.(<span>$i</span>+1).'" class="selected">'.(<span>$i</span>+1).'</a></li>'<span>;
}</span><span>else</span><span>{
</span><span>echo</span> '<li><a href="blog.php?page='.(<span>$i</span>+1).'">'.(<span>$i</span>+1).'</li>'<span>;
}
} </span>?>
</ul>
</div></span>相对应的CSS
#page_num {
height:20px;
clear:both;
padding:10px 0;
position:relative;
}
#page_num ul {
position:absolute;
right:30px;
height:20px;
}
#page_num ul li {
float:left;
width:26px;
height:20px;
}
#page_num ul li a {
display:block;
width:20px;
height:20px;
line-height:20px;
border:1px solid #333;
text-align:center;
text-decoration:none;
}
#page_num ul li a:hover,#page_num ul li a.selected {
background:#666;
font-weight:bold;
color:#fff;
}
