常用分享功能.超级简单,qq 微信 新浪微博分享

<div id="share">
            <a href="javascript:void(0)"  share-type="qzone"  style="background-position: 0 0;"     target="_blank"  title="分享到QQ空间"></a>
            <a href="javascript:void(0)"  share-type="tsina"  style="background-position: -35px 0;" target="_blank"  title="分享到新浪微博"></a>
            <a href="javascript:void(0)"  share-type="weixin" style="background-position: -70px 0;" target="_blank"  title="分享到微信朋友圈"><div class="erweima"><div id="qrcode"></div></div></a>
        </div>

这是html;

下边是JS

$(function () {

    var qrcode = new QRCode(document.getElementById("qrcode"), {
        width : 160,//设置宽高
        height : 160
    });
    qrcode.makeCode(location.href);

    $('#share a').on('click',share);

    var shareDara = {
        pic:(function () {
            var pics = ''
            $('.contenr-main .text img').each(function (i,k) {
                if(i<1){
                    pics +=  $(k).attr('src')
                }else{
                    pics += '||'+$(k).attr('src')
                }
            })
            return pics
        })(),
        title:(function () {
           return $('.contenr-main .title').html()
        })(),
        url:location.href,
        desc:(function () {
            return $('.contenr-main .text p').eq(0).html()
        })()
    }

    function share (){
        var self = $(this);
        var shareType = self.attr('share-type');
            //console.log(shareType);
        switch (shareType){
            case 'weixin':
                break;
            case 'tsina':
                self.attr('href',
                    'http://service.weibo.com/share/share.php?' +
                    'url=' +encodeURIComponent(shareDara.url)+
                    '&title=' +encodeURIComponent(shareDara.title)+
                    '&appkey=93034926' +
                    '&pic='+encodeURIComponent(shareDara.pic)+
                    '&searchPic=false')
                break;
            case 'qzone':
                self.attr('href',
                    'http://sns.qzone.qq.com/cgi-bin/qzshare/cgi_qzshare_onekey?' +
                    'url='  +encodeURIComponent(shareDara.url)+
                    '&title=' +encodeURIComponent(shareDara.title)+
                    '&desc=' + encodeURIComponent(shareDara.desc)+
                    '&summary=' +encodeURIComponent(shareDara.pic)+
                    '&site='
                    )
                break;
            default:
                break;

        }
    }

});

　　再从网上下载一个qrcode.min.js用来生成二维码超级简单实用