<?php if(have_posts()) : ?><?php while(have_posts()) : the_post(); ?>
    <?php get_template_part( 'content', get_post_format() ); ?>
<?php endwhile; ?>

<?php
	$soContent = $post->post_content;
	$soImages = '~<img [^\>]*\ />~';
	preg_match_all( $soImages, $soContent, $thePics );
	$allPics = count($thePics[0]);
	echo '<div class="audioback"><a href="';
	echo the_permalink();
	echo '" rel="nofollow"><div class="overlay"></div>';
	if( $allPics > 0 ){
		echo $thePics[0][0]; 
	}
        else{
               echo '你的默认图片地址';//改为你需要的图片地址
        }
	echo '</a></div>';  
?>

<?php
	$soContent = $post->post_content;
	$soMedia = '~<embed [^\>]*\ />~';
	preg_match_all( $soMedia, $soContent, $theMidea );
	$allMedia = count($themedia[0]);
	if( $allMedia > 0 ){
	echo '<div class="audio">';
	echo $themedia[0][0];
	echo '</div>';}
?>

<div class="audioauthor">
    <a href="<?php the_permalink() ?>" title="<?php the_title() ; ?>" rel="bookmark">
        <?php the_title(); ?>
    </a>
</div>
<div class="audioviews">
    Played <?php post_views('<span class="playtime">', '</span>') ?> times
</div>
<a href="<?php the_permalink() ?>#comments" title="<?php the_title() ; ?>" rel="bookmark">
    <div class="more-play">
        <span class="yplay">
            <?php comments_number('占个前排','1 位听众','% 位听众');?>
        </span>
    </div>
</a>

function AjaxLoad(){
 if( isset($_GET['action'])){
            if($_GET['action'] == 'ajax_slidepage'  ){
                if($_GET['page'] == 'pagenum2'){
                echo '<ul>';
                get_most_viewed('',8,0 ,0 ,' 次浏览');//这个相信都知道是什么吧……被浏览最多的文章
                echo '</ul><p>';
                }
                else{
                echo '<ul>';
                get_archives('postbypost', 8);
                echo '</ul><p>';
                }
            die;
            }
}
}
addaction('init', 'AjaxLoad');

    function ajaxslidepage(b,c) {
        $.ajax({
            url: 'http://127.0.0.1/?action=ajax_slidepage&page='+c,
            type: 'get',
            beforeSend: function() {
                var loading = '载入中';
                $(b).empty().html(loading)
            },
            error: function(a) {
                $(b).empty().html('载入失败')
            },
            success: function(a) {
                $(b).empty().html(a);
            }
        });
        return false
    };

    $('#slider4 .pager a.pagenum').click(function() {
        $('#slider4 .pagenum').removeClass('active');
        next = $(this).attr('rel');
        next = -next*305;
        $('#slider4 .overview').animate({'left':next});//点击后的滑动效果
        $(this).addClass('active');
        var id = $(this).attr('id'); //获取点击的该pager的id
        var show = id == 'pagenum2'?'#page2':'#page3'; //根据id查找下面对应显示的项目
        if($(show).find('ul').length == 0){ //判断，使仅载入一次
        ajaxslidepage(show,id); //调用，在id=xx中显示对应内容
        }
        event.preventDefault(); //阻止默认行为（此处为链接点击）
    });

<li id="slider4">
	<ul class="pager">
		<li><a href="#" class="pagenum" rel="0">NewComments</a></li>
		<li><a href="#" class="pagenum" id="pagenum2" rel="1">HotPosts</a></li>
		<li><a href="#" class="pagenum" id="pagenum3" rel="2">NewPosts</a></li>
	</ul>							
	<div class="viewport">
		<ul class="overview" style="width: 1500px; left: 0px; ">
			<li class="page">
				<ul class="recentcomments">
				我用的是最近评论，这个推荐
                                zww大叔的方法 http://zww.me/archives/24818
				</ul>
			</li>
			<li class="page" id="page2"></li>
			<li class="page" id="page3"></li>
		</ul>
	</div>
</li>

#slider4 { height: 1%; overflow:hidden; display: block; padding: 0 0 16px 0; margin: 0;}
#slider4 .viewport { width: 308px; border-left:1px solid #e3e3e3;border-right:1px solid #e3e3e3;border-bottom:4px solid #e3e3e3;background-color:#fff;height: 277px; overflow: hidden; position: relative; }
#slider4 .pager { overflow:hidden;border:1px solid #ddd; height: 1%; list-style: none; clear: both; margin:0; }
#slider4 .pager .micon{background-position: -147px -40px;margin-top:7px}
#slider4  #pagenum2 .micon{background-position:-72px -40px}
#slider4  #pagenum3 .micon{background-position:-48px -40px}
#slider4 .pager li { float: left; }
#slider4 .pagenum { background-color: #fff; text-decoration: none; text-align: center; padding: 5px; color: #555555; width:60px;line-height:35px;height:35px;text-indent:-9999px; font-weight: bold; display: block; }
#slider4 .active { color: #3E3E3E; background-color:  #BBB;width:158px;text-indent:0; }
#slider4 .overview { list-style: none; position: absolute; width: 308px; left: 0;top: 0; }
#slider4 .overview .page{ float: left; height: 265px; width: 310px;line-height:23px}
#page2,#page3{padding-top:7px}
#slider4 .page ul li{padding:4px 6px 4px 12px;color:#9a9a9a;list-style:circle inside;}

function ajaxs() {
        $.ajax({
            url: 'http://127.0.0.1/?action=ajax', //域名换成你要用的
            type: 'get',
            beforeSend: function() {
                var loading = '<span class="loadsidebar"></span>';
                $('#hotposts').empty().html(loading)  //显示loading啊神马的
            },
            error: function(a) {
                $('#hotposts').hide().empty().html('<div style="text-align:center;padding-top:20px;">还木有载好</div>').fadeIn('fast')
            },   //错误时输出神马
            success: function(a) {
                $('#hotposts').empty().html(a) //成功时输出神马
            }
        });
        return false
};
ajaxs();

function AjaxLoad(){
 
    if( isset($_GET['action'])){
        if($_GET['action'] == 'ajax'  ){
            echo 'Oh shit'; //你可以根据需要输出，比如输出最新评论，最新文章，最新妹子什么的
            die;
        }
        //if($_GET['action'] == 'ajax'  ){
            //如果理解的话，这样的代码还可以写出若干对吧？
    }
 
}
add_action('init', 'AjaxLoad');

<?php
$previousPost=get_adjacent_post(false, '', true);
if ($previousPost) {
                echo get_the_post_thumbnail($previousPost->ID, 'thumbnail'); 
}
?>

<?php
$nextPost=get_adjacent_post(false, '', false);
if ($nextPost) {
                echo get_the_post_thumbnail($nextPost->ID, 'thumbnail'); 
}
?>

echo "<a href='".get_permalink($previousPost->ID)."' title='".$previousPost->post_title."' >".get_the_post_thumbnail($previousPost->ID, 'thumbnail')."</a>";

<ul class="relatedposts">
<?php
$post_num = 5; // 數量設定.
$exclude_id = $post->ID; // 單獨使用要開此行 //zww: edit
$posttags = get_the_tags(); $i = 0;
if ( $posttags ) {
	$tags = ''; foreach ( $posttags as $tag ) $tags .= $tag->term_id . ','; //zww: edit
	$args = array(
		'post_status' => 'publish',
		'tag__in' => explode(',', $tags), // 只選 tags 的文章. //zww: edit
		'post__not_in' => explode(',', $exclude_id), // 排除已出現過的文章.
		'ignore_sticky_posts' => 1,
		'orderby' => 'comment_date', // 依評論日期排序.
		'posts_per_page' => $post_num
	);
	query_posts($args);
	while( have_posts() ) { the_post(); ?>
			<?php	$soContent = $post->post_content; //axiu: 获取文章第一个图片
				$soImages = '~<img [^\>]*\ />~';
				preg_match_all( $soImages, $soContent, $thePics );
				$allPics = count($thePics[0]);
				if( $allPics > 0 ){
				echo '<li><a href="';
				echo the_permalink();
				echo '" rel="nofollow">';
				echo $thePics[0][0];
				echo '</a>'.the_title().'</li>';	
				}
				else {
				echo '<li><a href="';
				echo the_permalink();
				echo '" rel="nofollow"><img src="';
				echo bloginfo( 'template_url' ).'/images/default.jpg" alt="'.get_the_title().'" />';
				echo '</a>'.the_title().'</li>';
				}?>
	<?php
		$exclude_id .= ',' . $post->ID; $i ++;
	} wp_reset_query();
}
if ( $i < $post_num ) { // 當 tags 文章數量不足, 再取 category 補足.
	$cats = ''; foreach ( get_the_category() as $cat ) $cats .= $cat->cat_ID . ',';
	$args = array(
		'category__in' => explode(',', $cats), // 只選 category 的文章.
		'post__not_in' => explode(',', $exclude_id),
		'ignore_sticky_posts' => 1,
		'orderby' => 'comment_date',
		'posts_per_page' => $post_num - $i
	);
	query_posts($args);
	while( have_posts() ) { the_post(); ?>
			<?php	$soContent = $post->post_content; //axiu: 获取文章第一个图片
				$soImages = '~<img [^\>]*\ />~';
				preg_match_all( $soImages, $soContent, $thePics );
				$allPics = count($thePics[0]);
				if( $allPics > 0 ){
				echo '<li><a href="';
				echo the_permalink();
				echo '" rel="nofollow">';
				echo $thePics[0][0];
				echo '</a>.'.the_title().'</li>';	
				}
				else {
				echo '<li><a href="';
				echo the_permalink();
				echo '" rel="nofollow"><img src="';
				echo bloginfo( 'template_url' ).'/images/default.jpg" alt="'.get_the_title().'" />';
				echo '</a>'.the_title().'</li>';
				}?>
 
	<?php $i++;
	} wp_reset_query();
}
if ( $i  == 0 )  echo '<li>没有相关文章!</li>';
?>
</ul>

.relatedposts{
	width:600px;
	_width:280px;
	margin:10px 0 5px 35px;
	overflow:hidden;
	padding:0
}
.relatedposts a{
	line-height:13px;
	font: 12px/15px arial;
	text-decoration:none;
	display:block;
	overflow:hidden
}
.relatedposts li{
	float:left;
	width:98px;
	height:130px;
	list-style: none;
	padding:5px 5px 9px 5px;
	overflow: hidden;
	background:#fefefe;
	border-right:1px solid #dfdfdf
}
.relatedposts li:hover{
	background:#f3f3f3
}
 
.relatedposts li:hover a{
	color:#333
}
.relatedposts img{
	height: 96px;
	border:0;
	padding:0
}

//more-link color
function get_color($num){
	if($num <= 2 && $num > 0) {echo '#F06434';}
	else if( $num <= 4 && $num > 2) {echo '#6E8033';}
	else {echo '#710300';}
}