CREATE TABLE TreeShip(  [ID] uniqueidentifier PRIMARY KEY NOT NULL,  [Name] [nvarchar](50) NULL,  [Remark] [nvarchar](500) NULL,  [ParentID] uniqueidentifier not null ) GO INSERT INTO TreeShip(ID,Name,Remark,ParentID) values ('47B9AF56-32D8-4561-8096…

应用场景:类似上图中树状菜单,选中一级菜单 点击上方删除按钮 所有子菜单删除 以下是代码截图(代码基于 TP5)…

Matrix Time Limit: 3000MS   Memory Limit: 65536K Total Submissions: 17766   Accepted: 6674 Description Given an N*N matrix A, whose elements are either 0 or 1. A[i, j] means the number in the i-th row and j-th column. Initially we have A[i, j] = 0 (1…

完整function )) ) CHARSET utf8 BEGIN ) ; ) ; SET str = ''; SET cid =cast(rootId as CHAR); WHILE cid is not null DO SET str= concat(str,',',cid); IF table_name = 'tb_menu' THEN ; ELSEIF table_name = 'tm_service_category' THEN ; ELSEIF table_name = 'tm_p…

后台我拿的数据是这样的格式: [ {id:1 , parentId: 0, name: '', level: 0}, {id:2 , parentId: 0, name: '', level: 0}, {id:3 , parentId: 2, name: '', level: 1}, {id:4 , parentId: 2, name: '', level: 1}, {id:5 , parentId: 4, name: '', level: 2}, ] 转换后的数据差不多就是这样的格式 { […

题目链接 ac代码(注意字符读入前需要注意回车的影响) #include<iostream> #include<cstdio> #include<cstring> #include<algorithm> #include<bitset> #include<cassert> #include<cctype> #include<cmath> #include<cstdlib> #include<c…

题目链接 AC代码: #include<iostream> #include<cstdio> #include<cstring> #include<algorithm> #include<bitset> #include<cassert> #include<cctype> #include<cmath> #include<cstdlib> #include<ctime> #include…

树状数据展现很常用,今天学习了PHP的递归,也来总结总结! PHP代码: function _getTreeList_custom1($data,$parent_id,$depth) { $return_array = array(); if(is_array($data) && !empty($data)) { foreach($data as $key => $info) { if($info['parent_id'] == $parent_id) { $info['depth'…

链接:https://ac.nowcoder.com/acm/contest/392/F来源:牛客网 时间限制:C/C++ 2秒,其他语言4秒 空间限制:C/C++ 32768K,其他语言65536K 64bit IO Format: %lld 题目描述 因为上次在月月面前丢人了,所以华华决定开始学信息学.十分钟后,他就开始学树状数组了.这是一道树状数组的入门题: 给定一个长度为N的序列A,所有元素初值为0.接下来有M次操作或询问: 操作:输入格式:1 D K,将ADAD加上K. 询问:输入格式…

Suppose that the fourth generation mobile phone base stations in the Tampere area operate as follows. The area is divided into squares. The squares form an S * S matrix with the rows and columns numbered from 0 to S-1. Each square contains a base sta…