From 8eeed0acb1ae88bac8fc5887a79eec88deb99738 Mon Sep 17 00:00:00 2001
From: "zhili.wzl" <zhili.wzl@alibaba-inc.com>
Date: Wed, 6 Oct 2021 11:14:54 +0800
Subject: [PATCH] chore(core): improve remove

---
 packages/core/src/models/Operation.ts | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/packages/core/src/models/Operation.ts b/packages/core/src/models/Operation.ts
index 2eefca5bf..7ebff9f61 100644
--- a/packages/core/src/models/Operation.ts
+++ b/packages/core/src/models/Operation.ts
@@ -190,14 +190,10 @@ export class Operation {
     for (let i = nodes.length - 1; i >= 0; i--) {
       const node = nodes[i]
       if (node.allowDelete()) {
-        const previousIndex = node.index - 1
-        const afterIndex = node.index + 1
-        const parent = node.parent
+        const previous = node.previous
+        const next = node.next
         node.remove()
-        const previous = previousIndex > -1 && parent.children[previousIndex]
-        const after =
-          afterIndex < parent.children.length && parent.children[afterIndex]
-        this.selection.select(previous ? previous : after ? after : node.parent)
+        this.selection.select(previous ? previous : next ? next : node.parent)
         this.hover.clear()
       }
     }