roly-poly

请问怎么样类似这个，修改动画颜色 

请问为什么改成ref以后， ``` this.$nextTick(function () { this.setPage(this.currentPage, true) this.slideEls = this.$refs.swiperWrap.children; this._createLoop() }) ``` ``` ``` ``` _createLoop () { var propName = this.isHorizontal() ? 'clientWidth' : 'clientHeight' var swiperWrapEl =...