<Table
ref="tagDataRef"
:data="tagData"
:columns="apiColumns"
:loading="getLoading"
@on-selection-change="onSelectChange">
</Table>
//
this.$refs.tagDataRef.selectAll(false);清空全选
this.$refs.tagDataRef.toggleSelect(deleteTagIndex); 清空已勾选选择框，deleteTagIndex为勾选框列表index
