专利挖掘文件列表中有id的才能删除

src/views/patentMining/components/fileMessage.vue

@@ -52,7 +52,7 @@
                   预览
                   <el-dropdown-menu slot="dropdown">
                     <el-dropdown-item command="1">下载</el-dropdown-item>
-                    <el-dropdown-item command="2" divided style="color: red;">删除</el-dropdown-item>
+                    <el-dropdown-item command="2" divided style="color: red;" v-if="scope.row.id">删除</el-dropdown-item>
                   </el-dropdown-menu>
                 </el-dropdown>
               </div>