diff --git a/problems/链表理论基础.md b/problems/链表理论基础.md index 0da269f0..02b7029e 100644 --- a/problems/链表理论基础.md +++ b/problems/链表理论基础.md @@ -143,7 +143,30 @@ head->val = 5; Java: +```java +public class ListNode { + // 结点的值 + int val; + // 下一个结点 + ListNode next; + + // 节点的构造函数(无参) + public ListNode() { + } + + // 节点的构造函数(有一个参数) + public ListNode(int val) { + this.val = val; + } + + // 节点的构造函数(有两个参数) + public ListNode(int val, ListNode next) { + this.val = val; + this.next = next; + } +} +``` Python: