elementUi的selection-all事件触发不了

点击全选按钮触发不了elementUi的selection-all事件

<el-table
                border
                :data="this.autisticData"
                ref="multipleTable"
                style="width: 100%"
                @select="handleSelectionAutisticChange"
                @select-all="handleSelectionAutisticChangeAll"
                @change="aaa"
              >
                            ---------------------------------------
handleSelectionAutisticChangeAll(selection) {
      alert(888);
      // for (var i = 0; i < selection.length; i++) {
      //   selection[i].disabled = false;
      //   selection[i].severity = 1;
      // }
    },
    aaa() {
      alert(666);
    },

你函数的绑定方法对吗

没有问题的呀，清空缓存看看