WordPress列表分页添加跳转指定页码输入框

function ashuwp_pagenavi() {
	global $wp_query, $wp_rewrite;
	$wp_query->query_vars['paged'] > 1 ? $current = $wp_query->query_vars['paged'] : $current = 1;
	$pagination = array(
		'base' => esc_url_raw( str_replace( 999999999, '%#%', get_pagenum_link( 999999999, false ) ) ),
		'format' => '',
		'total' => $wp_query->max_num_pages,
		'current' => $current,
		'show_all' => false,
		'type' => 'plain',
		'end_size'=>'1',
		'mid_size'=>'3',
		'prev_text' => '上一页',
		'next_text' => '下一页'
	);
	$total_pages = $wp_query->max_num_pages;
	if( !empty($wp_query->query_vars['s']) )
		$pagination['add_args'] = array('s'=>get_query_var('s'));
		echo '<div class="page_nav"><div class="nav_wrap clearfix">';
	echo '<div class="total"><span>第'.$current.'/'.$total_pages.'页,共</span><span class="blue">'.$wp_query->found_posts.'</span><span>个结果</span></div>';
	if($total_pages>1){
		echo '<div class="goto">
			<span>跳转至：第</span>
			<input id="page_input" type="text" max="'.$total_pages.'" name="page_num" value="" />
			<span>页</span>
			<a href="#" class="go_btn">确认</a>
			</div>';
	}
	echo '<div class="page-nav clearfix"><nav>';
	if ( $current !=1 ) {
		echo '<a class="page-numbers first" href="'. esc_html(get_pagenum_link(1)).'">首页</a>';
	}
	echo paginate_links($pagination);
	if ( $current < $total_pages ) {
		echo '<a class="page-numbers last" href="'. esc_html(get_pagenum_link($total_pages)).'">尾页</a>';
	}
	echo '</nav></div>';
	echo '</div></div>';
}

<script type="text/javascript">
jQuery(document).ready( function($){
	//.page_nav a.go_btn为确认按钮，点击执行
	$('.page_nav a.go_btn').on('click',function(event){
		event.preventDefault(); //取消默认动作
		page_input = $('#page_input'); //获取输入框的值
		page_max = page_input.attr('max'); //获取输入框中的max属性的值，就是最大页码
		if(page_input.val()==''){
			alert('请输入页码');
			return false;
		}
		if((page_input.val()<1) || (page_input.val()>page_max)){
			alert('请输入1至' + page_max + '之间的数字');
			return false;
		}
		page_links = $('.page-nav a').eq(1).attr('href'); //从页码列表中获取任意一个链接,此处获取第一个链接
		go_link = page_links.replace(/\/page\/([0-9]{1,})/g, '/page/'+page_input.val()); //将页码数字替换
		location.href = go_link; //跳转
	});
});
</script>

jQuery(document).ready( function($){
	//.page_nav a.go_btn为确认按钮，点击执行
	$('.page_nav a.go_btn').on('click',function(event){
		event.preventDefault(); //取消默认动作
		page_input = $('#page_input'); //获取输入框的值
		page_max = page_input.attr('max'); //获取输入框中的max属性的值，就是最大页码
		if(page_input.val()==''){
			alert('请输入页码');
			return false;
		}
		if((page_input.val()<1) || (page_input.val()>page_max)){
			alert('请输入1至' + page_max + '之间的数字');
			return false;
		}
		page_links = $('.page-nav a').eq(1).attr('href'); //从页码列表中获取任意一个链接,此处获取第一个链接
		go_link = page_links.replace(/\/page\/([0-9]{1,})/g, '/page/'+page_input.val()); //将页码数字替换
		location.href = go_link; //跳转
	});
	$.fn.onlyNum = function onlyNum() {
		$(this).keypress(function (event) {
			var eventObj = event || e;
			var keyCode = eventObj.keyCode || eventObj.which;
			if ((keyCode >= 48 && keyCode <= 57))
				return true;
				else
				return false;
		}).focus(function () {
			//禁用输入法
			this.style.imeMode = 'disabled';
		}).bind("paste", function () {
			//获取剪切板的内容
			var clipboard = window.clipboardData.getData("Text");
			if (/^\d+$/.test(clipboard))
				return true;
			else
				return false;
		});
	};
	//#page_input为页码输入框
	$('#page_input').onlyNum();
});