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C++之封装
文章目录封装的意义成员变量和成员函数类的成员变量普通成员变量muta
ble
可变成员变量static静态成员变量类的成员函数按功能来分构造函数拷贝构造函数构造函数调用规则析构函数类对象作为类成员时构造和析构顺序按特性来分
_Karry
·
2024-09-05 04:58
C++
c++
冒泡排序详细说明(内含动态演示图)
//⽅法1voidbub
ble
_sort(intarr[],intsz)//参数接收数组元素个数{inti=0;for(i=0;iarr[j+1]){inttmp=arr[j];arr[j]=arr[j
酷酷的崽798
·
2024-09-05 03:56
算法
数据结构
排序算法
LeetCode 2860.让所有学生保持开心的分组方法数:排序+遍历
【LetMeFly】2860.让所有学生保持开心的分组方法数:排序+遍历力扣题目链接:https://leetcode.cn/pro
ble
ms/happy-students/给你一个下标从0开始、长度为
Tisfy
·
2024-09-05 03:50
题解
#
力扣LeetCode
leetcode
算法
数据结构
题解
排序
贪心
遍历
位图索引
案例有张表名为ta
ble
的表,由三列组成,分别是姓名、性别和婚姻状况,其中性别只有男和女两项,婚姻状况由已婚、未婚、离婚这三项,该表共有100w个记录。
woshishui1243
·
2024-09-05 02:59
List中remove()方法的陷阱,被坑惨了
list.remove(i);}System.out.println(list);抛出异常:java.util.ConcurrentModificationExceptionforeach写法实际上是对的Itera
ble
源码开源Java
·
2024-09-05 02:17
程序员
面试
java
后端
mysql中的mysql 库不存在,进行恢复
进行恢复解决方法:关闭数据库servicemysqldstop以跳过权限认证方式启动mysqlmysqld_safe--defaults-file=/etc/my.cnf--skip-grant-ta
ble
s
金牌j软件测试培训师肖sir
·
2024-09-05 02:16
多测师__疑难杂症(001)
mysql
android
数据库
力扣sql刷题系列(三)
618.学生地理信息报告Createta
ble
IfNotExistsStudent(namevarchar(50),continentvarchar(7))Truncateta
ble
StudentinsertintoStudent
南潇如梦
·
2024-09-05 02:45
面试
leetcode
sql
算法
SQL临时表操作
教学教程语法创建临时表方法一:createta
ble
#临时表名(字段1约束条件,字段2约束条件,...)createta
ble
##临时表名(字段1约束条件,字段2约束条件,...)方法二:select*
KingCruel
·
2024-09-05 01:38
SQL
Server
sql
临时表
sqlserver创建临时表
关于PostgreSQL的分区表的历史及分区裁剪参数ena
ble
_partition_pruning与constraint_exclusion的区别
1.疑惑我们知道控制分区裁剪的参数有两个:ena
ble
_partition_pruningconstraint_exclusion这两个参数有什么区别呢?
胖胖小李胡
·
2024-09-04 23:02
postgresql
postgresql
数据库
学习小组Day5笔记--森蝶
read.ta
ble
,调出对应的帮
松风
·
2024-09-04 23:42
在线 LaTeX 表格编辑器
现成的工具可以可视化生成LaTeX表格代码LaTeXTa
ble
sEditor网址:LaTeXTa
ble
sEditor(latex-ta
ble
s.com)其他在线LaTeX表格编辑器CreateLaTeXta
ble
sonline–Ta
ble
sGenerator.comLaTeXta
ble
sgeneratoronline
凉漠
·
2024-09-04 23:30
Latex使用
数据库
ElasticSearch 6.x 学习笔记:19.搜索高亮
/www.elastic.co/guide/en/elasticsearch/reference/6.1/search-request-highlighting.htmlHighlightersena
ble
youtogethighlightedsnippetsfromoneormorefieldsinyoursearchresultssoyoucansho
程裕强
·
2024-09-04 22:58
Elasticsearch
6.x
学习笔记
高亮
highlight
WPF之SelectedValue与SelectedValuePath
SelectedValue跟SelectedValuePath这两个属性,我总是搞混,现在写一篇文章来梳理下:1.ItemSource:这个不用多说,数据源,是一个对象列表,在MVVM中,我们常用Observa
ble
Collection
weixin_30538029
·
2024-09-04 22:53
HTML学习7[重点]
HTML表单form一、表单二、提交数据三、用户注册表单四、下拉列表支持多选五、file控件六、hidden控件七、readonly和disa
ble
d八、input控件的maxlength一、表单表单有什么用
乌鸦不像写字台
·
2024-09-04 22:52
html学习
html
学习
github
JavaSE基础学习day3--异常&&集合
目录1.异常1.1异常概述1.2JVM的默认处理方案1.3异常处理1.4异常处理之try...catch...1.5Throwa
ble
的成员方法1.6编译时异常和运行时异常的区别1.7异常处理之throws1.8
yz不摆烂24124
·
2024-09-04 22:20
学习
java
CLR via C# 读书笔记 6-2 不同AppDomain之间的通信
AppDomain通信有两种方式1.MarshalByreference:传递引用2.MarshalByValue:把需要传递的对象通过序列化反序列化的方式传递过去(值拷贝)只有标记为可序列化Serializa
ble
xuefeiliuyuxiu
·
2024-09-04 21:45
面试准备
C#
Codeforces Round 969 (Div. 2 ABCDE题) 视频讲解
A.Dora’sSetPro
ble
mStatementDorahasasetssscontainingintegers.Inthebeginning,shewillputallintegersin[l,
阿史大杯茶
·
2024-09-04 21:15
Codeforces
算法
c++
数据结构
SQL基础(四)-- SQL连接时去掉重复数据
1.重复数据完全一样,用distinctselectdistinct*fromta
ble
根据字段去重用distinctselectdistinct列名称from表名称(对一列进行操作)selectdistinct
weixin_30478923
·
2024-09-04 20:44
AtCoder Beginner Contest 206
文章目录AtCoderBeginnerContest206A-Maxi-BuyingB-SavingsC-Swappa
ble
D-KAIBUNsyoE-DivideBothF-IntervalGame2AtCoderBeginnerContest206A-Maxi-Buying
「已注销」
·
2024-09-04 20:41
ACM--比赛补题
4. 数据结构与算法:双端队列-
双端队列(deque,全名dou
ble
-endedqueue)是一种具有队列和栈性质的线性数据结构。
sszhang
·
2024-09-04 20:57
AtCoder Beginner Contest 369(ABCDEFG题)视频讲解
A-369Pro
ble
mStatementYouaregiventwointegersAAAandBBB.Howmanyintegersxxxsatisfythefollowingcondition?
阿史大杯茶
·
2024-09-04 20:09
Atcoder
c++
算法
数据结构
jmeter连接mysql数据,并将查询结果存储到指定txt文件中
,我之前已经有教程了就不赘述了,教程链接如下jmeter连接mysql数据库以及常规用法-CSDN博客2、当jmeter成功配置mysql数据库后,在JDBCRequest组件中进行如下配置Varia
ble
NameofPooldeclaredinJDBCConnectionConfiguration
清冬暖雪
·
2024-09-04 19:08
JMeter
jmeter
数据库
mysql
探索Ansi
ble
自动化运维:提高效率的关键工具
探索Ansi
ble
自动化运维:提高效率的关键工具在现代IT环境中,自动化已经成为提高效率、减少错误和优化资源利用的重要手段。
一个代码猎人
·
2024-09-04 19:05
笔记本
自动化部署/运维
运维
ansible
自动化
LeetCode-209-长度最小的子数组
来源:力扣(LeetCode)链接:https://leetcode-cn.com/pro
ble
ms/minim
醉舞经阁半卷书
·
2024-09-04 18:26
SQL基础语法
SQL语句基本语法查询SELECTcolumn_name,column_nameFROMta
ble
_name;SELECT*FROMta
ble
_name;SELECTDISTINCTcolumn_nameFROMta
ble
_name
隔壁村的菜GO
·
2024-09-04 17:27
数据库
sql
数据库
每日一题:力扣738. 单调递增的数字
题目链接:https://leetcode-cn.com/pro
ble
ms/monotone-increasing-digits/题目给定一个非负整数N,找出小于或等于N的最大的整数,同时这个整数需要满足其各个位数上的数字是单调递增
看了个寂寞
·
2024-09-04 17:53
算法
leetcode
贪心算法
ansi
ble
详解
一、语法usage:ansi
ble
[-h][--version][-v][-b][--become-methodBECOME_METHOD][--become-userBECOME_USER][-K|-
husterlichf
·
2024-09-04 16:18
ansible
ansible
【实践举例】一文搞懂Mysql常见锁!!
1.1从粒度上分全局锁共享锁(读锁):会阻塞写锁排他锁(写锁):会阻塞读锁,写锁使用场景:全库导出,全库备份,需要保证整个数据库一致性用法:flushta
ble
swithreadlock添加读锁Unlockta
ble
s
羊毛_
·
2024-09-04 15:17
知识碎片
mysql
面试:说一下HashMap的底层实现原理,我懵了
哈希表(hashta
ble
)也叫散列表,是一种非常重要的数据结构,应用场景及其丰富,许多缓存技术(比如memcached)的核心其实就是在内存中维护一张大的哈希表,而HashMap的实现原理也常常出现在各类的面试题中
一只程序猿哟
·
2024-09-04 15:09
CDGA|数据治理:确保数据质量与价值的综合性框架
这包括明确数据治理的目标、方针和政策,确保整个组织在
数据管理
方面保持一致性。同时,还需
vx15302782362
·
2024-09-04 14:08
弘博创新
CDGA数据治理
大数据
数据治理
CDGA
《帝国时代2:决定版》轻松通关技巧:体验不一样的新文明
如果你正在寻找一种新的方式来体验游戏,并希望通过使用修改器来轻松通关,那么“风灵月影修改器”(WindofSpiritCheatEngineTa
ble
)可能是一个不错的选择。
qhlyfdc
·
2024-09-04 14:36
游戏
经验分享
编译 ffmpeg 方法
/configure--prefix=/usr/local/ffmpeg --ena
ble
-gpl --ena
ble
-nonfree --ena
ble
-libfdk-aac
ls2018536
·
2024-09-04 14:34
音视频
vue实现模拟象棋走子
/*eslint-disa
ble
indent*/不支持Canvasimport{getWalkingEnrollItemBank,updateEnrollFractionById}from'../..
dreamimport
·
2024-09-04 14:03
开发项目
vue
es6中map 的操作方法
语法newMap([itera
ble
])参数:可以是数组或者其他的可迭代对象.null会被当作undefinedMap同Set类似,NaN是相同的,对象和数组是不同的.
一只大橘
·
2024-09-04 14:54
IOS 20 发现界面(UITa
ble
View)歌单列表(UICollectionView)实现
发现界面完整效果本文实现歌单列表效果文章基于IOS19发现界面(UITa
ble
View)快捷按钮实现继续实现发现界面歌单列表效果歌单列表Cell实现实现流程:1.创建Cell,及在使用UITa
ble
View
sziitjin
·
2024-09-04 13:27
IOS
ios
UITableView
CollectionView
如何限制JS对象属性的配置
对属性的修改、增加、删除做限制Object.preventExtensions()限制了不能向对象中新添加属性和方法了但可以修改对象中存在的属性,也可以删除原有属性和方法Object.isExtensi
ble
小鱼旋子
·
2024-09-04 13:30
EasyExcel表格导出自动列宽设定
publicstaticclassAutoColumnWidthStrategyimplementsCellWriteHandler{@OverridepublicvoidbeforeCellCreate(WriteSheetHolderwriteSheetHolder,WriteTa
ble
HolderwriteTa
ble
Holder
SheldonChang
·
2024-09-04 12:24
POI
excel
poi
Signac::EnhanceCoveragePlot 参考实现流程
Signac中的CoveragePlot是一种用于展示基因组覆盖度的图形工具,常用于ATAC-seq(AssayforTransposase-Accessi
ble
Chromatinusingsequencing
倪桦
·
2024-09-04 12:23
r语言
Signac
coverageplot
C语言 跟着Mr.狠人一起实现冒泡排序
冒泡排序(bub
ble
sort)基本原理很简单,如图所示:这边方便大家快速观察顺序:这边我们可以观察出冒泡排序是两两相比,每一趟都能确定最后一位成为本趟的最大值。10个数字9趟就完成了。
CPP_ZhouXuyang
·
2024-09-04 12:23
Mr.狠人C语言学习篇
c语言
算法
开发语言
程序员创富
青少年编程
c++
数据结构
Android之Handler的post方法和sendMessage的区别
post方法方法post(Runna
ble
r)postDelayed(Runna
ble
r,longdelayMillis)postAtT
追梦的鱼儿
·
2024-09-04 12:21
android
java
Handler
post
send
runnable
SpringBoot 转发重定向
Controller@RequestMapping(value="/test/test01/{name}",method=RequestMethod.GET)publicStringtest(@PathVaria
ble
Stringname
摆动的手指
·
2024-09-04 12:19
springboot
ansi
ble
中docker 代理设置
SUMMARYI'mtryingtobuildaDockerfilebehindproxyusingdockerclientconfig.jsonasdescribedhere.Ansi
ble
docker_imagedefaultpathforconfig.jsonisdifferentthattheonefordockerclient
小蜗牛爬楼梯
·
2024-09-04 12:02
无法访问 请与这台计算机,计算机无法访问,您可能没有权限使用网络资源.请与这台服务器的管理员联系以查...
计算机无法访问,您可能没有权限使用网络资源.请与这台服务器的管理员联系以查明您(1)安装NWlinkIPX/SPX/NetBIOSCompati
ble
TransportProtocol协议。
陆盖盖
·
2024-09-04 11:17
无法访问
请与这台计算机
Java 异步执行 Completa
ble
Future
Completa
ble
Future10.10.1.创建Completa
ble
Future实例,并且其他线程中使用publicFuturegetPriceAsync(Stringproduct){//创建
netkiller-
·
2024-09-04 11:16
编程手札
java
开发语言
flex 布局
布局传统布局兼容性好布局繁琐局限性,不能再移动端很好的布flex局flex弹性布局操作方便,布局极为简单,移动端应用很广泛PC端浏览器支持情况较差IE11或更低版本,不支持或仅部分支持flex布局原理flex是flexi
ble
Box
漂亮疯了
·
2024-09-04 11:15
CSS
入门
css
html
css3
聪明办法学Python第3节:变量与函数
作业链接:登录-HydroOJ变量Varia
ble
sAvaria
ble
isanamedvaluethatreferencesorstoresapieceofdata.变量是一个名字,它所指代的是一段数据使用
m0_53743757
·
2024-09-04 11:13
python
开发语言
ai
.storyboard: error: IB Designa
ble
s: Failed to render and update auto layout status for (BFU-10-2K...
清理~/Library/Developer/Xcode/DerivedData重启进入有问题的SB文件解决参考链接:https://blog.csdn.net/Bloody_Leaves/article/details/54601471https://blog.csdn.net/cuzzZYues/article/details/77177533?utm_source=blogxgwz3
人魔七七
·
2024-09-04 11:00
java.io.InvalidClassException(spark任务运行失败)
背景:客户集群内偶尔会出现java.io.InvalidClassException:org.apache.kudu.spark.kudu.KuduRDD;localclassincompati
ble
:
LATASA
·
2024-09-04 09:30
spark
java
大数据
postgresql 省市区为例-递归查询
创建示例数据本来想把全国所有省市区地址都写上,但是内容字数超长,如果需要详细全部省市区数据的请自行下载:https://download.csdn.net/download/qq_37519791/14884271CREATETA
BLE
why_c_p_c_d
Mr.乔
·
2024-09-04 09:29
postgresql
Touch Foam - Technical support
pleasecontactusthroughthefollowingcontactinformation.Contactphone:+8617151768845Contactemail:
[email protected]
ble
sfloattothesealevelfromthed
佩奇_3b9d
·
2024-09-04 08:32
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