审批界面增加pdf，图片预览功能

yangys

2025-11-27 f97351a6f1fdc679f4956030d179dca843bbeb0c

 src/views/flowmgr/backImport.vue

@@ -12,12 +12,15 @@
            class="demo-tabs"
        >
            <el-tab-pane label="导入" name="todo">
                <keep-alive>
                <backImport1 v-if="activeName==='todo'"></backImport1>
                </keep-alive>
            </el-tab-pane>
            <el-tab-pane label="回传记录" name="done">
                <backImport2 v-if="activeName==='done'"> </backImport2>
            </el-tab-pane>
        </el-tabs>
        
    </basic-container>
</template>
<script>