fix: 修复crud2编辑器内设置多列右侧固定显示问题

packages/amis-ui/src/components/table/Head.tsx

@@ -60,8 +60,17 @@ export default class Head extends React.PureComponent<Props> {
   tdColumns: Array<TdProps>;
 
   prependColumns(columns: Array<any>) {
-    const {rowSelectionFixed, expandableFixed, draggable} = this.props;
-    if (draggable) {
+    const {
+      rowSelectionFixed,
+      expandableFixed,
+      draggable,
+      selectable,
+      expandable
+    } = this.props;
+    if (expandable) {
+      columns.unshift({});
+    }
+    if (draggable || selectable) {
       columns.unshift({});
     } else {
       if (expandableFixed) {

packages/amis-ui/src/components/table/util.ts

@@ -234,7 +234,9 @@ function getAfterRightWidth(
   for (let i = doms.length - 0; i > index; i--) {
     if (columns && columns[i] && isFixedRightColumn(columns[i].fixed)) {
       const dom = doms[i] as HTMLElement;
-      width += dom.offsetWidth;
+      if (dom) {
+        width += dom.offsetWidth;
+      }
     }
   }
   return width;