修改

src/utils/validate.js

@@ -60,7 +60,7 @@ export function orgTree (str) {
 //   return parent;
 // }
 
-export function translateDataToTreeAll(arr, parentKey, key) {
+export function translateDataToTreeAll (arr, parentKey, key) {
   const map = {}
   const result = []
   arr.forEach(element => {
@@ -80,6 +80,7 @@ export function translateDataToTreeAll(arr, parentKey, key) {
     const item = map[id]
     if (pid <= 0) {
       result.push(item)
+      result.sort((a, b) => b.children.length - a.children.length)
     } else {
       if (map[pid]) {
         map[pid].children.push(item)