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fix: break reference cycling (#666)

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nuomi1
2023-07-31 03:32:19 +08:00
committed by GitHub
parent dbe3b4d6ba
commit a54ec55516
1 changed files with 1 additions and 1 deletions
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codes/swift/chapter_stack_and_queue/linkedlist_deque.swift
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@ -8,7 +8,7 @@
class ListNode {
var val: Int // 节点值
var next: ListNode? // 后继节点引用（指针）
var prev: ListNode? // 前驱节点引用（指针）
weak var prev: ListNode? // 前驱节点引用（指针）
init(val: Int) {
self.val = val