From 31e340bf6c953850705bf80701f7f9df5c6622d6 Mon Sep 17 00:00:00 2001
From: Jack_ZhijieFang <56966563+laerpeeK@users.noreply.github.com>
Date: Fri, 5 Aug 2022 02:45:36 +0800
Subject: [PATCH] =?UTF-8?q?fix:=E9=93=BE=E8=A1=A8=E7=90=86=E8=AE=BA?=
 =?UTF-8?q?=E5=9F=BA=E7=A1=80.md?=
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typescript中，null只能赋值给any和null类型变量。这里需要采用联合类型声明。
---
 problems/链表理论基础.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/problems/链表理论基础.md b/problems/链表理论基础.md
index 1a29c32a..8378f7f2 100644
--- a/problems/链表理论基础.md
+++ b/problems/链表理论基础.md
@@ -186,7 +186,7 @@ TypeScript:
 ```typescript
 class ListNode {
   public val: number;
-  public next: ListNode = null;
+  public next: ListNode|null = null;
   constructor(value: number) {
     this.val = value;
     this.next = null;