function widget($args, $instance)
    {
        extract($args);
        @($title = $instance['title'] ? $instance['title'] : '最热文章');
        @($num = $instance['num'] ? $instance['num'] : 5);
        echo $before_widget;
        ?>
      <div class="panel panel-zan hidden-xs">
        <div class="panel-heading"><?php 
        echo $title;
        ?>
</div>
        <div class="panel-body">
          <ul class="list-group">
            <?php 
        // 设置全局变量,实现post整体赋值
        global $post;
        $posts = zan_get_hotest_posts($num);
        foreach ($posts as $post) {
            setup_postdata($post);
            ?>
              <li class="zan-list clearfix">
                <figure class="thumbnail zan-thumb">
                  <?php 
            the_post_thumbnail(array(75, 75));
            ?>
                </figure>
                <a href="<?php 
            the_permalink();
            ?>
">
                 <h5><?php 
            the_title();
            ?>
</h5>
                </a>
                <div class="sidebar-info">
                  <span><i class="fa fa-calendar"></i> <?php 
            the_time('m月j日, Y');
            ?>
</span>
                  <span><i class="fa fa-comment"></i> <a href="<?php 
            the_permalink();
            ?>
#comments"><?php 
            comments_number('0', '1', '%');
            ?>
</a></span>
                </div>
              </li>
            <?php 
        }
        wp_reset_postdata();
        ?>
          </ul>
        </div>
      </div>
    <?php 
        echo $after_widget;
    }
    function widget($args, $instance)
    {
        extract($args);
        @($title1 = $instance['title1'] ? $instance['title1'] : '最热文章');
        @($title2 = $instance['title2'] ? $instance['title2'] : '最新文章');
        @($title3 = $instance['title3'] ? $instance['title3'] : '随机文章');
        @($num = $instance['num'] ? $instance['num'] : 8);
        echo $before_widget;
        ?>

    <div class="panel panel-zan  widget-sets hidden-xs">
      <ul class="nav nav-pills pills-zan">
        <li class="active"><a href="#sidebar-hot" data-toggle="tab"><?php 
        echo $title1;
        ?>
</a></li>
        <li><a href="#sidebar-new" data-toggle="tab"><?php 
        echo $title2;
        ?>
</a></li>
        <li><a href="#sidebar-rand" data-toggle="tab"><?php 
        echo $title3;
        ?>
</a></li>
      </ul>
      <div class="tab-content">
        <div class="tab-pane active nav bs-sidenav fade in" id="sidebar-hot">
          <ul class="list-group">
            <?php 
        // 设置全局变量,实现post整体赋值
        global $post;
        $posts = zan_get_hotest_posts($num);
        foreach ($posts as $post) {
            setup_postdata($post);
            ?>
              <li class="list-group-item clearfix">
                <a href="<?php 
            the_permalink();
            ?>
">
                  <?php 
            the_title();
            ?>
                </a>
                <span class="badge">
                  <?php 
            if (function_exists('the_views')) {
                the_views();
            }
            ?>
                </span>
              </li>
            <?php 
        }
        wp_reset_postdata();
        ?>
          </ul>
        </div>
        <div class="tab-pane fade" id="sidebar-new">
          <ul class="list-group">
            <?php 
        // 设置全局变量,实现post整体赋值
        global $post;
        $posts = zan_get_latest_posts($num);
        foreach ($posts as $post) {
            setup_postdata($post);
            ?>
              <li class="list-group-item clearfix">
                <a href="<?php 
            the_permalink();
            ?>
">
                  <?php 
            the_title();
            ?>
                </a>
                <span class="badge">
                  <?php 
            if (function_exists('the_views')) {
                the_views();
            }
            ?>
                </span>
              </li>
            <?php 
        }
        wp_reset_postdata();
        ?>
          </ul>
        </div>
        <div class="tab-pane nav bs-sidenav fade" id="sidebar-rand">
          <ul class="list-group">
            <?php 
        // 设置全局变量,实现post整体赋值
        global $post;
        $posts = zan_get_rand_posts($num);
        foreach ($posts as $post) {
            setup_postdata($post);
            ?>
              <li class="list-group-item clearfix">
                <a href="<?php 
            the_permalink();
            ?>
">
                  <?php 
            the_title();
            ?>
                </a>
                <span class="badge">
                  <?php 
            if (function_exists('the_views')) {
                the_views();
            }
            ?>
                </span>
              </li>
            <?php 
        }
        wp_reset_postdata();
        ?>
          </ul>
        </div>
      </div>
    </div>
    <?php 
        echo $after_widget;
    }