add_shortcode('cpe_views', 'cpe_views_shortcode');
function cpe_views_shortcode($atts) {
    $atts = shortcode_atts(array('post_id' => 0), $atts, 'cpe_views');
    $pid = (int) $atts['post_id'];
    if (!$pid) { $pid = get_the_ID(); }
    if (!$pid) { return ''; }
    $views = number_format_i18n((int) get_post_meta($pid, 'post_views_count', true));
    return '<span class="cpe-views" style="display:block;font-size:14px;color:#999;margin:10px 0 0;line-height:1.6;">' . esc_html($views) . ' 浏览</span>';
}