Pbootcms ajax 无刷新点赞

<button class="support">点赞</button>  <!--按钮--->
<div id="support_number">{content:likes}</div>  <!--赞数量-->
<p class="supported"></p>   <!--已赞提示-->
<!--ajax-->
<script>
$('.support').on('click',  //绑定事件
function() {
$.ajax({
url: '{content:likeslink}',  //点赞链接
data: {
'likes': 'likes'
},
success: function(data) {
$('#support_number').load(location.href + " #support_number");  //点赞后刷新#support_number
if (data.state) {} else {
$(".supported").html("已点赞！")  //已赞提示
}},
error: function(xhr, status, error) {
console.log(error)
}
});
})
</script>