Problem recurring:
The top category can be slid to the scroll-view for another category. The part in the circle in the figure is just a small area that slides horizontally, and there is no need to slide to the end to switch categories.
Solution:
<scroll-view class="fdlist" scroll-x="true" catchtouchmove='catchTouchMove'>
Add the catchtouchmove event to scroll-view
and add this function to js
catchTouchMove: function() {
return false;
},