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低功耗蓝牙ble
详解MySQL增删查改
CREATEDATABASE数据库名;MySQL删除数据库:DROPDATABASE;--直接删除,不检查是否存在DROPDATABASE[IFEXISTS];--检查数据库是否存在MySQL删除数据库dropta
ble
userTest
0nePiece
·
2024-02-20 12:51
sql
linux
mysql
数据库
【刷题记录】移除链表元素
注:部分思路借鉴自程序员小熊链接:https://leetcode.cn/pro
ble
ms/remove-linked-list-elements/solutions/341875/203-yi-chu-lian-biao-yuan-su-you-ya-di-gui-c-yu-ya
睡觉待开机
·
2024-02-20 12:14
链表
数据结构
代码随想录算法训练营29期Day55|LeetCode 309,714
文档讲解:买卖股票的最佳时机含冷冻期买卖股票的最佳时机含手续费309.买卖股票的最佳时机含冷冻期题目链接:https://leetcode.cn/pro
ble
ms/best-time-to-buy-and-sell-stock-with-cooldown
tlingyuqi
·
2024-02-20 12:08
代码随想录算法训练营29期
算法
leetcode
职场和发展
c++
动态规划
代码随想录算法训练营29期Day54|LeetCode 123,188
文档讲解:买卖股票的最佳时机III买卖股票的最佳时机IV123.买卖股票的最佳时机III题目链接:https://leetcode.cn/pro
ble
ms/best-time-to-buy-and-sell-stock-iii
tlingyuqi
·
2024-02-20 12:07
代码随想录算法训练营29期
算法
leetcode
职场和发展
c++
动态规划
代码随想录算法训练营29期Day53|LeetCode 121,122
文档讲解:买卖股票的最佳时机买卖股票的最佳时机II121.买卖股票的最佳时机题目链接:https://leetcode.cn/pro
ble
ms/best-time-to-buy-and-sell-stock
tlingyuqi
·
2024-02-20 12:37
代码随想录算法训练营29期
leetcode
算法
职场和发展
c++
动态规划
Nacos自动装配原理
Nacos自动装配原理在SpringCloud稍早一些的版本中,我们需要在启动类上添加@Ena
ble
DiscoveryClient注解开启服务治理功能,而在新版本的SpringCloud中,这个注解不再是一个必须的步骤
缺的不是资料,是学习的心
·
2024-02-20 12:35
java
数据库
sql
Leetcode 21. 合并两个有序链表
Leetcode21.合并两个有序链表1、问题分析2、问题解决3、总结1、问题分析题目链接:https://leetcode-cn.com/pro
ble
ms/merge-two-sorted-lists
qq_32510597
·
2024-02-20 12:35
LeetCode
Hot100
链表
算法
leetcode
合并两个有序链表
数据结构
ubuntu解决“E: Una
ble
to locate package lrzsz“
今天在ubuntu上安装rzsz包时报错,提示无法定位包,提示如下出现这个问题是因为apt的源没有更新,我们直接说解决办法把下面的命令执行一遍即可sudoadd-apt-repositorymainsudoadd-apt-repositoryuniversesudoadd-apt-repositoryrestrictedsudoadd-apt-repositorymultiversesudoapt
YZF_Kevin
·
2024-02-20 12:02
知识积累
ubuntu网络
3个密码学相关的问题
一、离散对数问题(DiscreteLogarithmPro
ble
m,DLP)问题描述:给定有限阿贝尓群G中的2个元素a和b,找出最小的正整数x满足:b=a^^x(或者证明这样的x不存在)。
不是AI
·
2024-02-20 12:31
密码学
网络安全
抽象代数
代码随想录算法训练营29期Day52|LeetCode 198,213,337
文档讲解:打家劫舍打家劫舍II打家劫舍III198.打家劫舍题目链接:https://leetcode.cn/pro
ble
ms/house-robber/description/思路:设dp[i]:考虑下标
tlingyuqi
·
2024-02-20 12:01
代码随想录算法训练营29期
算法
leetcode
职场和发展
c++
动态规划
妹妹的成长记录191011——Terri
ble
Two: 风一样的女子
图片发自App图片发自App图片发自App图片发自App早上妈妈铺个床,妹妹转身就去卫生间把自己的头发剃了几缕下来,幸好妈妈发现的早,否则把自己剃个阴阳头就没法见人了。早饭吃饱了,又开始偷偷用菜汤快速擦脸摸头发,还把小机器人的脸也抹了几把菜汤,被发现后一脸的得意。被批评了,变脸给个不屑的小眼神。妈妈拖地,她悄悄放下书,跑去卧室把小夜灯拽了下来,挂在胳膊上走来走去。还跑去书房打开了爸爸的电脑,要去找
凝飞呀
·
2024-02-20 12:16
wow AnJianJingLing_20200515
2BeginHotkey=121BeginHotkeyMod=0PauseHotkey=0PauseHotkeyMod=0StopHotkey=123StopHotkeyMod=0RunOnce=1Ena
ble
Window
spencer_tseng
·
2024-02-20 11:59
game
wow
anjianjingling
Codeforces Round 925 E Anna and the Valentine‘s Day Gift
原题链接:Pro
ble
m-E-Codeforces题目大意:给长度为n的数组a,安娜可以让一个数字反转,例如2400到42,萨沙可以让二个数字拼接,例如2400和12,可以拼接成240012或者122400
Jiu-yuan
·
2024-02-20 11:58
算法
celery异步框架的使用
-翻译过来是芹菜-官网:https://docs.celeryq.dev/en/sta
ble
/-吉祥物:芹菜-分布式的异步任务框架-分布式:一个任务,拆成多个任务在不同机器上做-异步任务:后台执行,不阻塞主任务
`越努力越幸运~
·
2024-02-20 11:56
数据库
The method toList() is undefined for the type Stream
ThemethodtoList()isundefinedforthetypeStream(JDK16)defaultListtoList(){return(List)Collections.unmodifia
ble
List
spencer_tseng
·
2024-02-20 11:22
java
JDK16
HashMap1.7中的线程安全问题
在这之前首先要知道JDK1.7的HashMap底层是数组+链表的形式的正文下面给出JDK1.7的扩容代码//扩容代码voidresize(intnewCapacity){//旧的数组Entry[]oldTa
ble
JWASX
·
2024-02-20 11:18
源码分析
哈希算法
java
数据结构
LeetCode | 0451. Sort Characters By Frequency根据字符出现频率排序【Python】
LeetCode0451.SortCharactersByFrequency根据字符出现频率排序【Medium】【Python】【桶排序】Pro
ble
mLeetCodeGivenastring,sortitindecreasingorderbasedonthefrequencyofcharacters.Example1
Wonz
·
2024-02-20 11:13
Python 开发环境的搭建
安装过程双击安装包,出现如下的开始安装界面,选择自定义安装选项,别点立即安装选项设置,默认全部勾选即配置选项,如图,注意安装路径不要使用中文、不要使用特殊字符5.安装完成,最后的结束界面中,一定点击disa
ble
pathlengthlimit
Andrewav
·
2024-02-20 11:35
笔记
python
数据库作业三
作业3:一、单表查询素材:表名:worker--表中字段均为中文,比如部门号工资职工号参加工作等CREATETA
BLE
`worker`(`部门号`int(11)NOTNULL,`职工号`int(11)NOTNULL
Andrewav
·
2024-02-20 11:35
数据库
mysql
数据库作业四
学生表Studentcreateta
ble
Student(SIdvarchar(10),Snamevarchar(10),Sagedatetime,Ssexvarchar(10));insertintoStudentvalues
Andrewav
·
2024-02-20 11:35
1024程序员节
jest+puppeteer
dockerfile使用dockerignore过滤掉node_modulespuppeteer需要添加sadbox的参数{args:['--no-sandbox','--disa
ble
-setuid-sandbox
heliping_peter
·
2024-02-20 11:14
YOLOV8改进系列指南
yolov5-PAGCP通道剪枝算法.具体使用教程专栏改进汇总二次创新系列ultralytics/cfg/models/v8/yolov8-RevCol.yaml使用(ICLR2023)Reversi
ble
ColumnNetworks
魔鬼面具
·
2024-02-20 11:59
YOLO
【AIGC】2023年生成式AI发展综述
期间Midjourney和Sta
ble
DiffusionAI绘画技术持续火热,基于AIGC类的应用也如雨后春笋般遍地开花。 人工智能生成
杀生丸学AI
·
2024-02-20 11:53
chatgpt
AIGC
深度学习
机器学习
人工智能
日积月累2023-06-19
Hewasa
ble
toredeemhiswatchfromthepawnshop.redemptionredemptionredemption救赎一些专业证券具有强制赎回的特征。
抽刀断水2
·
2024-02-20 11:59
Ansi
ble
(剧本,角色编写)
的playbook4.定义,应用变量5.指定远程主机sudo切换用户6.when条件判断7.迭代8.Templates模块一、剧本(playbook)1.playbook介绍playbook是ansi
ble
疯狂的斯图卡
·
2024-02-20 10:58
playbook
Ansi
ble
的脚本 --- playbook 剧本
Ansi
ble
的脚本---playbook剧本playbooks本身由以下各部分组成编写yaml文件示例运行playbook定义、引用变量指定远程主机sudo切换用户when条件判断迭代Templates
Jahony
·
2024-02-20 10:26
linux
运维
自动化
ansi
ble
中的角色使用
ansi
ble
roles1、ansi
ble
中的角色简介角色(roles)是ansi
ble
自1.2版本开始引入的新特性,用于层次性、结构化的组织playbook;roles能够根据层次型结构自动装载变量文件
李牛克斯小学生
·
2024-02-20 10:26
linux
ansi
ble
的剧本
1playbook剧本1.1playbooks的组成Tasks任务,即通过task调用ansi
ble
的模板将多个操作组织在一个playbook中运行Varia
ble
s变量Templates模板Handlers
王德发666
·
2024-02-20 10:54
apache
网络
服务器
ansi
ble
剧本中的角色
1roles角色1.1roles角色的作用?可以把playbook剧本里的各个play看作为一个角色,将各个角色打的tasks任务、vars变量、template模版和copy、script模块使用的相关文件等内容放置在指定角色的目录里统一管理,在需要的时候可在playbook中使用roles角色直接调用即可。1.2roles的目录格式roles/ #角色总目录,其每个子目录
王德发666
·
2024-02-20 10:52
ansible
graphql开发示例
https://github.com/chentsulin/awesome-graphql/blob/master/README.md里面有各种语言对graphql的开发框架和示例比如java:Ta
ble
ofContentsSpecificationsFoundationsCommunitiesMeetupsImplementationsJavaScript
whatzhang007
·
2024-02-20 10:52
#
GraphQL
graphql
css pointer-events 多层鼠标点击事件
pointer-events/*Keywordvalues*/pointer-events:auto;pointer-events:none;pointer-events:visi
ble
Painted;
小和尚敲木头
·
2024-02-20 10:21
前端
css
前端
21java-多线程-高级
中的线程状态被定义在了java.lang.Thread.State枚举类中,State枚举类的源码如下:publicclassThread{publicenumState{/*新建*/NEW,/*可运行状态*/RUNNA
BLE
猪崽早点睡
·
2024-02-20 10:49
java
开发语言
graphql_GraphQL简介
graphqlGraphQLisaquerylanguageforAPIsandaruntimeforfulfillingthosequerieswithyourexistingdata.GraphQLprovidesacompleteandunderstanda
ble
descriptionofthedatainyourAPIaswellasgivesclientsthepowertoaskfor
cukw6666
·
2024-02-20 10:17
数据库
python
java
大数据
mysql
macad3d解析macad—application,commands,utils
usingSystem.Runtime.CompilerServices;usingSystem.Runtime.InteropServices;usingSystem.Windows;//SettingComVisi
ble
tofalsemakesth
table study
·
2024-02-20 10:47
学习
防火墙 ipta
ble
s(二)-------------SNAT与DNAT
一、SNAT①SNAT应用环境:局域网主机共享单个公网IP地址接入Internet(私有IP不能在Internet中正常路由)②SNAT原理:源地址转换,根据指定条件修改数据包的源IP地址,通常被叫做源映射数据包从内网发送到公网时,SNAT会把数据包的源IP由私网IP转换成公网IP当响应的数据包从公网发送到内网时,会把数据包的目的IP由公网IP转换为私网IP③SNAT转换前提条件局域网各主机已正确
白开水~不加糖
·
2024-02-20 10:13
服务器
网络
linux
防火墙(三) -----------------关于ipta
ble
s规则的保存
一、关于ipta
ble
s规则的保存之前写的ipta
ble
s的设置,但是都是临时生效的,一旦电脑重启,那么就会失效,如何永久保存,需要借助ipta
ble
s-save命令,开机生效需要借助ipta
ble
s-restore
白开水~不加糖
·
2024-02-20 10:13
服务器
linux
网络
JavaEE____多线程1
VS单线程性能2.1单线程执行时间2.2多线程执行时间3.线程3种创建方式3.1创建方式1:继承Threada)使用jconsole观察线程b)启动线程——start方法3.2创建方式2:实现Runna
ble
漫天 星辰
·
2024-02-20 10:39
JavaEE
java-ee
ipta
ble
s防火墙
ipta
ble
s[-t表名]管理选项[链名][匹配条件][-j控制类型]1.表:filter:过滤规则表,根据预定义的规则过滤符合条件的数据包,默认表nat:networkaddresstranslation
Mr_Black0_0
·
2024-02-20 10:09
网络
服务器
运维
通过Jmeter压测存储过程
一、存储过程准备:1、建立一个空表:CREATETA
BLE
test_data(idNUMBER,nameVARCHAR2(50),ageNUMBER);2、建立一个存储过程:CREATEORREPLACEPROCEDUREinsert_test_data
.咖啡加剁椒.
·
2024-02-20 10:09
软件测试
jmeter
软件测试
自动化测试
功能测试
程序人生
职场和发展
LRU实现
·importjava.util.HashMap;importjava.util.Map;/**@author@date2020/3/1117:46@desc*/publicclassDou
ble
Link
Braint_java
·
2024-02-20 10:32
【JavaEE】_线程与多线程的创建
目录1.线程的概念2.创建与使用多线程2.1方式1:继承Thread类2.2方式2:实现Runna
ble
接口2.3以上两种创建线程方式的对比3.多线程的优势-增加运行速度1.线程的概念进程的存在是由于系统的多任务执行需求
_周游
·
2024-02-20 10:05
JavaEE
java-ee
java
jvm
vs code 使用scss/sass
sass的编译依赖Ruby环境1、安装Ruby官网下载传送门注意:安装Ruby时一定要勾选AddRubyexecuta
ble
stoyourPATH,用来将Ruby添加到系统变量,后续可以省却很多不必要的麻烦
zyy_0725
·
2024-02-20 10:34
vs
code
解析Scala中HashMap插入数据的常见错误及修正方法
错误代码:importscala.collection.muta
ble
valrdd1=users.map(e=>{valarr1=e.split(",")valmap=muta
ble
.HashMap//
王哪跑nn
·
2024-02-20 10:32
Bug
scala
开发语言
scala
Hive使用双重GroupBy解决数据倾斜问题
文章目录1.数据准备2.双重groupby实现解决数据倾斜2.1第一层加盐groupby2.2第二层去盐groupby1.数据准备createta
ble
wordcount(astring)rowformatdelimitedfieldsterminatedby
黄土高坡上的独孤前辈
·
2024-02-20 10:29
Hive/Kylin数据仓库
hive
hadoop
数据仓库
Scala基础教程--18--集合(二)
Scala基础教程–18–集合(二)章节目标掌握Itera
ble
集合相关内容.掌握Seq集合相关内容.掌握Set集合相关内容.掌握Map集合相关内容.掌握统计字符个数案例.1.Itera
ble
1.1概述
落空空。
·
2024-02-20 10:28
spark
java
scala
开发语言
后端
透彻理解实时数仓的支撑技术:Upsert Kafka 和 Flink 动态表(Dynamic Ta
ble
)
博主历时三年精心创作的《大数据平台架构与原型实现:数据中台建设实战》一书现已由知名IT图书品牌电子工业出版社博文视点出版发行,点击《重磅推荐:建大数据平台太难了!给我发个工程原型吧!》了解图书详情,京东购书链接:https://item.jd.com/12677623.html,扫描左侧二维码进入京东手机购书页面。动态表本质上是一条流(stream),upsert-kafka映射的数据表底层存储的
Laurence
·
2024-02-20 10:23
大数据专题
upsert-kafka
flink
动态表
原理
解释
更新
【LUA】时间面板显示
定义方式--定义一个对象localmyObject={isVisi
ble
=false,}--定义对象的方法functionmyObject:toggleShow()self.isVisi
ble
=notself.isVisi
ble
ifself.isVisi
ble
thenprint
LAM LAB
·
2024-02-20 10:21
lua
junit
开发语言
Linux中无法忘记mysql密码处理办法
找到/etc/my.cnf或者/etc/mysql/my.cnf文件添加下面两行代码,取消密码验证[mysqld]skip-grant-ta
ble
使用命令登录:mysql-uroot-p,回车,回车使用
ljf8838
·
2024-02-20 10:18
linux
mysql
运维
基于Python的paddleocr推理环境列表
python-mpipinstallpaddlepaddle-gpu==2.6.0.post120-fhttps://www.paddlepaddle.org.cn/whl/windows/mkl/avx/sta
ble
.htmlopencv-pythonlmdbimgaugscikit-i
博观而约取,厚积而薄发
·
2024-02-20 10:18
PaddlePaddle
python
开发语言
Lua总结
refhttp://book.luaer.cn/基础弱类型,没有类型定义解释型语言,但是会通过编译器先编译成中间码然后再执行字符串的处理:用ta
ble
保存,最后ta
ble
.concat(t,"\n").
圆形毕露
·
2024-02-20 09:15
其他语言
lua
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