树表默认展开所有行的属性：
default-expand-all = true
<maTable
ref="table"
:api="api"
:column="column"
:showRecycle="true"
row-key="id"
:hidePagination="true"
@selection-change="selectionChange"
@switch-data="switchData"
stripe
remoteSort
default-expand-all = true
>