## What problem does this feature solve? 表格的拖拽排序功能再管理系统中比较常用,而在ng-zorro中的ng-table中也已存在此API,工作量不会像开发新功能那么大。 ## What does the proposed API look like? <st drop (handleDrop)="drop($event)"></st> <!-- generated by ng-alain-issue-helper. DO NOT REMOVE -->