又不懂的地方可以參考百度分享官網

<div class="bdsharebuttonbox">
<a href="#" class="bds_more" data-cmd="more">分享到：</a>
<a href="#" class="bds_weixin" data-cmd="weixin" title="分享到微信">微信</a>
<a href="#" class="bds_tsina" data-cmd="tsina" title="分享到新浪微博">新浪微博</a>
<a href="#" class="bds_qzone" data-cmd="qzone" title="分享到QQ空間">QQ空間</a>
<a href="#" class="bds_tqq" data-cmd="tqq" title="分享到騰訊微博">騰訊微博</a>
<a href="#" class="bds_renren" data-cmd="renren" title="分享到人人網">人人網</a></div>


<script> 
 $("#title").change(function(){
window._bd_share_config.share.bdText=$("#title").val();
alert( window._bd_share_config.share.bdText); 
}); 


window._bd_share_config={"common":{"bdSnsKey":{},"bdText":$("#title").val()+"--自由暢想","bdMini":"2","bdMiniList":false,"bdPic":"","bdStyle":"0","bdSize":"16"},"share":{"bdSize":16},"image":{"viewList":["weixin","tsina","qzone","tqq","renren"],"viewText":"分享到：","viewSize":"16"},"selectShare":{"bdContainerClass":null,"bdSelectMiniList":["weixin","tsina","qzone","tqq","renren"]}};with(document)0[(getElementsByTagName('head')[0]||body).appendChild(createElement('script')).src='http://bdimg.share.baidu.com/static/api/js/share.js?v=89860593.js?cdnversion='+~(-new Date()/36e5)];
</script>

其中title是博文標題作為動態分享內容一部分

主意分享後面的圖示要在聯網的情況下才會顯示。