10 2021 档案

char类型有默认值
摘要：char 类型默认初始化的值是 \u0000； 阅读全文
posted @ 2021-10-15 19:29 Dragon-Li 阅读(396) 评论(0) 推荐(0)
二叉树遍历
摘要：package com.wujie.tree; public class Tree { public static void main(String[] args) { TreeNode root = new TreeNode("Root"); TreeNode a = new TreeNode(" 阅读全文
posted @ 2021-10-09 17:58 Dragon-Li 阅读(23) 评论(0) 推荐(0)