update

utils/index.js

 
 
 const crypto = require('crypto');
+const _ = require('lodash');
 
 
 function genRandomString(length) {
@@ -39,6 +40,7 @@ function buildTree(nodes) {
             if (nodeMap.has(parentId)) {
                 // 将当前节点添加到父节点的children数组中  
                 nodeMap.get(parentId).children.push(nodeMap.get(String(node._id)));
+                nodeMap.get(parentId).children = _.orderBy(nodeMap.get(parentId).children, 'order')
             }
         }
     });