update

src/common/setup/table/event.ts

@@ -17,7 +17,7 @@ export function getTableEvent<T>(param: TableEventCB) {
                 selectedRow.value = record
                 const value = expandedRowKeys.value;
                 if (value.length) {
-                    const key = value[1];
+                    const key = value[0];
                     expandedRowKeys.value = key === index.toString() ? [] : [`${index}`];
                 } else {
                     expandedRowKeys.value = [`${index}`]