微博，QQ空间，豆瓣的web版分享 pc和mobile通用

 function share(url) {            var paramsDict = {                title: "",                site: "",                url: window.location.href            };            var params = [];            for (var name in paramsDict) {                params.push(name + "=" + paramsDict[name]);            }            url += params.join("&");            window.open(url);        }

依次是新浪微博、QQ空间、豆瓣

share('http://service.weibo.com/share/share.php?');share('http://sns.qzone.qq.com/cgi-bin/qzshare/cgi_qzshare_onekey?');share('http://www.douban.com/recommend/?')