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BLE(低功耗)蓝牙开发
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
《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
c++学习笔记(2)
语法:数据类型*变量名;数据类型必须是合法的C++数据类型(int、char、dou
ble
或其它自定义的数据类型)。星号*与乘法中
月夕花晨374
·
2024-09-04 08:55
c++
学习
笔记
SQL必知必会(第4版)读书笔记
1.1.2表表(ta
ble
)某种特定类型数据的结构化清单。数据库中的每个表都
·云扬·
·
2024-09-04 07:17
数据库
MySQL
sql
mysql
数据库
复盘
从本单元中我学到的最重要的理念(精读和视听说分别总结)精读:①走出舒适圈②处理好大学人际关系视听说:如何与人持续聊天2,我在本片文章/音频/视频中学到的怦然心动的单词(精读和视听说分别总结)精读:crucialintangi
ble
passion
李亚敏
·
2024-09-04 07:45
蓝易云 - MySQL中实施排序(sorting)及分组(grouping)操作的技巧。
单列排序对于单列排序的情形,语句的基本形式如下:SELECTcolumn1,column2FROMta
ble
_nameORDERBYcolumn1ASC;--或DESC多
蓝易云
·
2024-09-04 06:13
mysql
数据库
ubuntu
服务器
运维
java
遇到的BUG及解决方法
问题描述问题解决PyCharm添加Anaconda中的虚拟环境,Python解释器出现Condaexecuta
ble
isnotfound链接配置环境出错.bashrc:16:commandnotfound
饿了就干饭
·
2024-09-04 06:13
NLP项目
bug
Pytorch问题处理:Pytorch distributed RuntimeError: Address already in use
解决方案:在运行命令前加上一个参数--master_port如:--master_port29501后面的参数29501可以设置成其他任意端口注意:这个参数要加载XXX.py前面例如:CUDA_VISI
BLE
_DEVICES
道纪书生
·
2024-09-04 06:42
Pytorch
pytorch
人工智能
python
Oracle SQL下的数据小数位数控制
在sql中设置"selectyearmon,round(data,2)asdata,round(rate,2)asratefrom"+dbTa
ble
+"wheredept_code=?
奔驰在大道上的程序猿
·
2024-09-04 05:05
Java小功能分析
oracle
java
sql
小数位数控制
Mybatis使用TypeHandler实现Java类型与数据库类型的自定义转换
SpringBoot项目中使用到Mybatis时,通常情况下程序中使用的各种基本数据类型在数据库中都有定义,如String-VARCHAR;但当使用一些数据库中没有定义的数据类型时,如Serializa
ble
遇见你之前.
·
2024-09-04 05:33
MyBatis
java
数据库约束--确保数据完整性
示例:CREATETA
BLE
students(student_idINTPRIMAR
A_cot
·
2024-09-04 05:33
数据库
oracle
mysql
sql
【ORACLE】数据保留小数位数
例如,如果你想保留三位小数,可以这样写:SELECTROUND(your_column,3)FROMyour_ta
ble
;这里your_column是你想要保留三位小数的列名,your_ta
ble
是表名
小雨嗒嗒
·
2024-09-04 05:03
数据库
oracle
数据库
wpf mvvm实现datagrid列中的属性进行绑定
datagrid的列并不在可视化树上,所以用需要下面的办法中转一下publicclassBindingProxy:Freeza
ble
{protectedoverrideFreeza
ble
CreateInstanceCore
wangyue4
·
2024-09-04 05:01
开发语言
c#
wpf
2单元复盘
我在本片文章/音频/视频中学到的怦然心动的单词textAtextB3,在本片文章/音频/视频中我最喜欢的一句话(精读)textA:Allofusprisoners,inthistimeofourtrou
ble
s.textB
黄静怡
·
2024-09-04 05:25
[python]python onnxruntime gpu是否可用
在Python中,要检查ONNXRuntime是否可以使用GPU,可以使用以下代码:importonnxruntimeasort#检查CUDA是否可用defis_cuda_availa
ble
():try
FL1623863129
·
2024-09-04 05:29
Python
python
人工智能
深度学习
IDEA+Springboot+mybaties通过实体类自动建表
1、引入pom依赖com.gitee.sunchenbin.mybatis.acta
ble
mybatis-enhance-acta
ble
1.0.3com.alibabadruid1.0.18org.apache.commonscommons-lang33.4net.sf.json-libjson-lib
yuanyaunlv
·
2024-09-04 04:55
spring
基于springboot
vue+element-ui 实现ta
ble
单元格点击编辑,并且按上下左右键单元格之间切换
通过我的测试我发现两个两种方法来编辑单元格的内容第一种点击编辑:我是给td里添加一个input,将值赋值给input,当失去焦点的时候将input的值付给td原来的内容,然后将input删除,代码如下:letoldel=cell.children[0]if(column.label!="日期"){if(cell.children.length>1){return}防止点击cell再次创建input
weixin_34238633
·
2024-09-04 04:55
javascript
ui
ViewUI
checkSelectorIsObserva
ble
case 验证
checkSelectorIsObserva
ble
case验证要触发第三个case需满足以下条件delegatemethod返回值不为空但根据消息转发策略overrideopenfuncresponds
狼性刀锋
·
2024-09-04 03:13
数据结构之查找
http://www.bjfuacm.com/pro
ble
m/287/#includeusingnamespacestd;#defineOK1#defineMAXSIZE10000typedefintStatus
点一下我的id
·
2024-09-04 03:02
HannahLin的ScalersTalk第四轮新概念朗读持续力训练Day 143 20190227
Lesson24-1AskeletoninthecupboardWeoftenreadinnovelshowaseeminglyrespecta
ble
personorfamilyhassometerri
ble
secretwhichhasbeenconcealedfromstrangersforyears.TheEnglishlanguagepossessesavividsayingtodescri
HannahLin
·
2024-09-04 02:20
2022-01-14每日刷题打卡
请你求出1号点到n号点的最短距离,如果无法从1号点走到n号点,则输出impossi
ble
。数据保证不存在负权回路。输入格式第一行包含整数n和m。
你好_Ä
·
2024-09-04 01:09
图论
算法
如何优雅的使用Optional类?
//遍历打印 userListfor (UserInfo userInfo : Optional.ofNulla
ble
(userList).orElse(new ArrayList
程序员蜗牛g
·
2024-09-03 23:55
springboot
java
开发语言
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