新浪微博，qq，QQ空间进行分享

开始引入bootstrap的css

<link rel="stylesheet" href="../css/bootstrap.min.css" />

html部分

<div class="fenxiang1">
		<p class="col-sm-5 col-xs-5 btn btn-success img-fen">
            <a href="#" class="a-link " onclick="open_share('qq')">
                
                QQ好友
            </a>
        </p>
 
                     <p class="col-sm-5 col-xs-5  btn btn-success img-fen">
            <a href="#" class="a-link" data-toggle="modal" data-target="#myWeixin">
                
                微信
            </a>
        </p>
        <p class="col-sm-5 col-xs-5  btn btn-success img-fen">
            <a href="#" class="a-link" onclick="open_share('qzone')">
                
                QQ空间
            </a>
        </p>
        <p class="col-sm-5 col-xs-5  btn btn-success img-fen">
            <a href="#" class="a-link" onclick="open_share('weibo')">
                
                新浪微博
            </a>
        </p><!-- /.modal-content -->
    	 <!-- 模态框（Modal） -->
             <p class="modal fade" id="myWeixin" tabindex="-1" role="dialog"
                  aria-labelledby="myModalLabel" aria-hidden="true">
                 <p class="modal-dialog" id="xian">
                     <p class="modal-content">
                         <p class="modal-header">
                             
                             <h4 class="modal-title" id="myModalLabel">
                                 用微信扫描二维码分享到朋友圈
                             </h4>
                         </p>
                         <p class="modal-body erweima">
                             <img src="http://s.jiathis.com/qrcode.php?url=<a rel='nofollow' href='http://www.baidu.com' target='_blank'>http://www.baidu.com</a>" alt="微信二维码" />
                         </p>
                         <p class="modal-footer">
                             <button type="button" class="btn btn-default"
                                     data-dismiss="modal">
                                 关闭
                             </button>
                         </p>
                     </p><!-- /.modal-content -->
                 </p><!-- /.modal-dialog -->
             </p><!-- /.modal -->
        </div>

js部分

function open_share(type) {
     	var shareUrl = '<a rel="nofollow" href="http://www.baidu.com" target="_blank">http:www.baidu.com</a>';
         var shareTitle = '自定义标题';
         var shareImg = 'http://s.jiathis.com/qrcode.php?url=' + shareUrl;
         var shareDesc = '自定义内容';
         var openUrl = '';
         switch (type) {
             case 'qzone':
                 openUrl = 'http://sns.qzone.qq.com/cgi-bin/qzshare/cgi_qzshare_onekey?url=' + shareUrl + '&title=' + shareTitle + '&pics=' + shareImg;
                 break;
             case 'weixin':
                 t_delay('请在微信客户端使用');
                 
                 return false;
                 break;
             case 'qq':
			 openUrl = 'http://connect.qq.com/widget/shareqq/index.html?url=' + shareUrl + '&desc=' + shareDesc + '&summary=' + shareDesc + '&site=' + shareUrl + '&pics=' + shareImg;
			      break;
			 case 'tqq':
			  openUrl = 'http://v.t.qq.com/share/share.php?title=' + shareTitle + '&url=' + shareUrl + '&site=' + shareUrl +'&pic=' + shareImg;
	              break;
	             case 'weibo':
	         
	          openUrl = 'http://service.weibo.com/share/share.php?title=' +  shareTitle + '&&source=' + shareUrl + '&sourceUrl=' + shareUrl + '&content=' + shareDesc + '&pic=' + shareImg;      
	              break;
	         }
	         window.open(openUrl);  
			}
			//判断微信
		    function is_weixn(){
		     var ua = navigator.userAgent.toLowerCase();
		     
		     if(ua.match(/MicroMessenger/i)=="micromessenger") {
		     	return true;
		     	alert();
		     	$("p").remove("p[class=modal-content]");
		         var $htmlLi = $('<img src="~/Content/WapHomeicon/xian.png" style="margin-left:120px;" alt="xian"/>');
		 
		         //创建DOM对象
		          var $ul = $("#xian");   //获取UL对象
		          $ul.append($htmlLi); //将$htmlLi追加到$ul元素的li列表
		
		         } else {
		             //不是微信
		             return false;
		
		            }
   
			}

微博和QQ,QQ空间都能够进行分享了，但那个微信，不知道怎么回事，没有测试出来，以后有谁用到这个代码，希望把微信的分享功能告诉我一下，到底能不能使用，我这个到底对不对。