树形结构附件按钮调接口

src/views/data-fill/wbs.vue

@@ -306,7 +306,7 @@
                             <span>图纸</span>
                         </el-button>
                     </HcTooltip>
-                    <el-button hc-btn>
+                    <el-button hc-btn @click="attachmentModalShow">
                         <HcIcon name="file" />
                         <span>附件</span>
                     </el-button>