element-ui 表格翻页多选，数据回显

<el-table :data="pageData" ref="goodsTable" size="small" v-loading="loading" height="520" @selection-change="handleSelectionChange" :row-key="getRowKeys">

    <el-table-column type="selection" :reserve-selection="true" width="50" prop="id">

    </el-table-column>

    <el-table-column label="编号" prop="goodsCode" width="130">

    </el-table-column>

    <el-table-column label="品名" prop="tradeName" show-overflow-tooltip>

    </el-table-column>

    <el-table-column label="规格" prop="specification" width="150" show-overflow-tooltip>

    </el-table-column>

    <el-table-column label="最小包装" prop="minPack" width="150" show-overflow-tooltip>

    </el-table-column>

    <el-table-column label="状态" prop="saleState" width="100">

        <template scope="scope">

            <el-tag>{{scope.row.saleState | statusFilter}}</el-tag>

        </template>

    </el-table-column>

    <el-table-column label="生产厂家" prop="manufacturer" show-overflow-tooltip>

    </el-table-column>

</el-table>

data() {

        pageData: [],

        loading: false,

        // 获取row的key值

        getRowKeys(row) {

            return row.id;

        },

        selectedData: []

    },