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fix 0203.移除链表元素.md

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修复某个变量编译时的类型问题。
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Jack_ZhijieFang
2022-08-05 03:15:03 +08:00
committed by GitHub
parent 31e340bf6c
commit 0f96289ed1
1 changed files with 2 additions and 1 deletions
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problems/0203.移除链表元素.md
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@ -385,7 +385,8 @@ function removeElements(head: ListNode | null, val: number): ListNode | null {
if (cur.val === val) { if (cur.val === val) {
pre.next = cur.next; pre.next = cur.next;
} else { } else {
pre = pre.next; //此处不加类型断言时：编译器会认为pre类型为ListNode, pre.next类型为ListNode | null
pre = pre.next as ListNode;
} }
cur = cur.next; cur = cur.next;
} }