在scroll(区域滚动)中使用slide（轮播组件）时，slide（轮播组件）会触发scroll(区域滚动)的坐标事件

<div class="mui-content">  
    <div class="mui-scroll-wrapper">  
        <div class="mui-scroll">  
                <div class="mui-slider">  
                  <div class="mui-slider-group mui-slider-loop">  
                    <div class="mui-slider-item mui-slider-item-duplicate">  
                        <img src="../images/cache/banner/003.jpg"/>  
                    </div>  
                    <div class="mui-slider-item">  
                        <img src="../images/cache/banner/001.jpg"/>  
                    </div>  
                    <div class="mui-slider-item">  
                        <img src="../images/cache/banner/002.jpg"/>  
                    </div>  
                    <div class="mui-slider-item">  
                        <img src="../images/cache/banner/003.jpg"/>  
                    </div>  
                    <div class="mui-slider-item mui-slider-item-duplicate">  
                        <img src="../images/cache/banner/001.jpg"/>  
                    </div>  
                  </div>  
                </div>  
        </div>          
    </div>  
</div>  
在scroll(区域滚动)中使用slide（轮播组件）时，           document.querySelector('.mui-scroll-wrapper').addEventListener('scroll', function(e) {  
        e.preventDefault();  
        var x = e.detail.x;  
      var y = e.detail.y;  
      console.log(x);  
      console.log(y);  
    });会被slide（轮播组件）触发，导致var y = e.detail.y;     console.log(y);值为0，从而无法在滚动到一定位置时决定定位选择栏。