监听函数，当某一变量发生变化时执行

        indexVue.$watch('BlessingsList', function (val) {//等dom元素渲染结束后执行
            this.$nextTick(function () {
                jQuery(".sendBox").slide({ autoPlay: true, effect: "topMarquee", vis: 4, interTime: 50, trigger: "click" });
            });
        });