element數據表格 取消全選

在這裏插入代碼片
**ref="articleTable"       方法         **
<el-dialog title="選擇商品" :visible.sync="dialogTable" 

width="800px" @close='closeDialog'>
            <div class="flortSrq">
                <div class="flortSr">
                    <button type="button" class="btn btn-default" 

style="position: absolute; top: 1%; right: 9%;"
                        @click="submit">
                        確定
                    </button>
                </div>
                <div>
                    <div>
                        <div style="">
                            <div style="">
                                <el-input placeholder="請輸入商品代碼/商品名

稱/條形碼/商品規格" v-model="keyword"
                                    @keyup.enter="Change1($event)">
                                    <template slot="append">
                                        <el-button slot="append" icon="el-

icon-search" @click="Change1($event)">
                                        </el-button>
                                    </template>
                                </el-input>
                            </div>
                        </div>
                    </div>
                    <template>
                        <el-table :data="tableData" ref="articleTable" 

@selection-change="handleSelectionChange"
                            :row-key="getRowKeys" style="width: 100%">
                            <el-table-column type="selection" width="55" 

:reserve-selection="true">
                            </el-table-column>
                            <el-table-column prop="good_code" label="商品代

碼">
                            </el-table-column>
                            <el-table-column prop="good_name" label="商品名

稱">
                            </el-table-column>
                            <el-table-column label="屬性">
                                <template slot-scope="scope">
                                    <span v-if="scope.row.attr_code !=''">
                                        {{scope.row.attr_code}}
                                    </span>
                                </template>
                            </el-table-column>
                            <el-table-column prop="barcode" label="條碼">
                            </el-table-column>
                        </el-table>
                    </template>
                </div>
            </div>
            <!-- 分頁 -->
            <div class="fen12">
                <el-pagination :current-page.sync="page1" :page-sizes="[10, 

20, 30, 40,50]" :page-size="pagesize"
                    layout="total, sizes, prev, pager, next" :total="total1" 

@size-change="handleSizeChange1"
                    @current-change="handleCurrentChange1" v-if="total1 != 

0">
                </el-pagination>
            </div>
        </el-dialog>



//查詢
            Change1: function (e) {
                var _this = this;
                if (e.keycode == 13 || _this.keyword != null) {
                    this.pop()
                }
            },


//彈窗關閉時 清空element table 選中的數據
closeDialog() {
                this.$refs.articleTable.clearSelection();
            }
 //ref="articleTable"  彈窗的表格上添加這個 屬性
 //