vue2实现在el-table里插入el-tag

比如，在表格里标识该行对应的需求打标签

 <el-table-column prop="tag" label="需求类型">
                  <template slot-scope="scope">
                    <el-tag
                      :type="
                        scope.row.demandFlag === '1' ? 'primary' : 'success'
                      "
                      disable-transitions
                    >
                      {{ scope.row.demandFlag === "1" ? "削峰" : "填谷" }}
                    </el-tag>
                  </template>
                </el-table-column>