微信分享代码 和 统计

      //点击下载按钮点击统计

     $(".btn").click(function(){

        (new Image()).src = 'http://xxx.com/xxx.php?id=xxx_clickdown';

          //只要修改src

    });

   //访问统计 （修改）

    (new Image()).src = 'http://xxx.com/xxx.php?id=xxx_0001';

    var img = new Image();

    var shareTitle = "分享标题";    //自定义
    var shareDesc = "副标题（描述）";   //自定义
    var shareLink = "";
    var sharePic = "";
    var shareTimelineDesc = "副标题（描述）";  //自定义
    //分享
    if (!shareTitle) {
        shareTitle = document.title;
    }
    if (!shareDesc) {
        shareDesc = "xxxx" + document.title;  //自定义
    }
    if (!shareLink) {
        shareLink = location.href;
    }
    if (!sharePic) {
        sharePic = "http://xx.com/xxx/share.png";  //分享图
    }
    var xxx_get_share_info = function() {
        var xxx_web_wxshare_param = {
            shareTitle: shareTitle,
            shareDesc: shareDesc,
            shareLink: shareLink,
            sharePic: sharePic,
            shareTimelineDesc: shareTimelineDesc
        };
        var arr = {
            type: "xxx_web_wxshare_param",
            result: xxx_web_wxshare_param
        };
        return JSON.stringify(arr);
    }
    var sharesuccessFunc = function() {
        var img = document.createElement("img");
        img.src = "http://xxx.com/xxx.php?id=201801xxx"; // 统计，和上面的链接一样
    };
    var sharecancelFunc = function() {};
    var scriptdom = document.createElement("script");
    scriptdom.type = "text/javascript";
    scriptdom.src = "http://xxx.com/wx/wechat_js_api_new.php?v=1";
    document.body.appendChild(scriptdom);
    scriptdom.onload = function() {
        wxShareNew.init(shareTitle, shareDesc, shareTimelineDesc, shareLink, sharePic, sharesuccessFunc, sharecancelFunc);
    }