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BLE(低功耗)蓝牙开发
C++学习笔记——均值
一、题目描述二、代码#include#includeusingnamespacestd;intmain(){intn;cin>>n;dou
ble
a[n];for(inti=0;i>a[i];}dou
ble
num
搞机械的假程序猿
·
2025-02-10 02:20
C++自学笔记
c++
学习笔记
C++学习笔记——最小n值
一、题目描述二、代码#includeusingnamespacestd;intmain(){intm;cin>>m;dou
ble
num=0;intn=1;while(1){num=num+(
搞机械的假程序猿
·
2025-02-10 02:20
C++自学笔记
c++
学习笔记
2021 年 12 月青少年软编等考 C 语言一级真题解析
0usingnamespacestd;intmain(){dou
ble
f;cin>>f;coutusingnamespacestd;intmain(){in
朔北 Clancy
·
2025-02-10 02:18
青少年软编等考
C
语言题解集(一级)
c语言
算法
c++
开发语言
学习
青少年编程
Ansi
ble
常用模块
文章目录ansi
ble
模块常用模块1、user2、shell3、copy4、template5、file6、lineinfile7、yum_repository8、yum9、service10、fetch11
时羽天
·
2025-02-10 02:48
Ansible
linux
ansible
运维
Ansi
ble
服务介绍
Ansi
ble
入门案例构建ansi
ble
库存默认库存文件默认组分组群组主机范围Ansi
ble
命令行工具ansi
ble
命令ansi
ble
-playbook命令ansi
ble
-inventory命令ansi
ble
-vault
huhy~
·
2025-02-10 02:17
自动化
ansible
SqlServer补充
一、数据库和表的操作1、其他1.1、备份表select*intota
ble
2fromta
ble
1说明:表ta
ble
1已经存在,ta
ble
2不存在。
m0_50985216
·
2025-02-10 02:17
SqlServer
sqlserver
数据库
sql
ansi
ble
User 模块
文章目录User模块User模块功能:系统用户管理官方文档:https://docs.ansi
ble
.com/ansi
ble
/latest/modules/user_module.html#user-module
Direct_
·
2025-02-10 02:42
ansible
ansible
ansible
User
k8s教程 认识 k8s、k8s 架构、快速部署入门
文章目录Kubernetes一、集群部署(ansi
ble
方式)1、初始化ansi
ble
2、添加解析3、使用ansi
ble
传输公钥4、发送hosts解析及更改主机名5、部署前的环境检查6、部署docker7
helpme流水
·
2025-02-10 01:41
kubernetes
架构
容器
深入探究 C++17 std::is_invoca
ble
文章目录一、引言二、`std::is_invoca
ble
`概述代码示例输出结果三、`std::is_invoca
ble
`的工作原理简化实现示例四、`std::is_invoca
ble
`的相关变体1.
码事漫谈
·
2025-02-10 01:11
C++17
c++
开发语言
kotlin实现ajax,第13章 Kotlin 集成 SpringBoot 服务端开发(2)
*@Entity@Ta
ble
(indexes=arrayOf(Index(name="idx_key_w
TTTTTTT-ll
·
2025-02-10 01:38
kotlin实现ajax
小区物业管理系统
#include#include#include#include#defineMAXSIZE100constdou
ble
perwatercost=3;//这里设
我真不会起名字啊
·
2025-02-10 00:33
c语言
绿色数据中心技术如何创新实践?
以下是一些绿色数据中心技术创新实践的例子:1、高效能服务器和虚拟化技术:使用更高效的硬件设备,如高密度服务器和
低功耗
处理器。实施虚拟化技术,通过减少物理服务器的数量来降低能耗。2、智能冷却系统:利用自
田鑫科技
·
2025-02-10 00:01
数据中心
数据库
大数据
SpringBoot-2.7.6自动装配过程
文章目录前言一、自动装配主要节点图二、自动装配主要组件1.注解1.1.应用入口注解
[email protected]
.启动自动配置-@Ena
ble
AutoConfiguration注解
mister-big
·
2025-02-10 00:01
spring
spring
boot
java
后端
yum命令报错undefined symbol: CRYPTO_num_locks
问题描述问题原因解决办法源码编译安装pycurl执行yumupdate,仍然报错问题描述在执行yumupdate的时候,突然遇到如下问题:-bash-4.2#yumupdateTherewasapro
ble
mimportingoneofthePythonmodulesrequiredtorunyum.Theerrorle
freflying1119
·
2025-02-09 23:23
yum
【C语言标准库函数】平方根与幂函数:sqrt()和pow()
目录一、头文件二、函数简介2.1.sqrt(dou
ble
x)2.2.pow(dou
ble
base,dou
ble
exponent)三、函数实现(概念性)3.1.sqrt()的概念性实现(牛顿迭代法)3.2
byte轻骑兵
·
2025-02-09 22:48
#
C语言深度解析坊
c语言
开发语言
聊聊jetcache的BroadcastManager
/alicp/jetcache/support/BroadcastManager.javapublicabstractclassBroadcastManagerimplementsAutoClosea
ble
·
2025-02-09 22:14
java缓存
nvm ls-remote,出现了“N/A”
N/A:"NotAvaila
ble
",表示某个特定版本的Node.js在远程仓库中不可用或不存在、网络问题:没有连接网络,或者计算机无法连接到node.js版本仓库。仓库问题:node.js版本
·
2025-02-09 22:12
node.js网络mvn
Python+onlyoffice 实现在线word编辑
onlyoffice:image:onlyoffice/documentserver:7.5.1container_name:onlyofficerestart:alwaysenvironment:-JWT_ENA
BLE
D
llc的足迹
·
2025-02-09 21:08
python
onlyoffice
MySQL——表操作及查询
1.插入数据INSERT[INTO]ta
ble
_name(列名称…)VALUES(列数据…),(列数据…);"[]"表示可有可无,插入时,如果不指定要插入的列,则表示默认全部列都要插入数据,插入数据的顺序必须和列的顺序一致
m0_74823658
·
2025-02-09 21:36
面试
学习路线
阿里巴巴
mysql
android
adb
qt QTa
ble
View总结
QTa
ble
View是Qt框架中的一个重要组件,用于显示和编辑表格数据。
enyp80
·
2025-02-09 20:34
qt
第五章:Spring 源码解析与性能优化
第五章:Spring源码解析与性能优化5.1Spring源码解析5.1.1SpringIoC容器的源码解析核心类:DefaultLista
ble
BeanFactorypublicclassDefaultLista
ble
BeanFactoryextendsAbstractAutowireCapa
ble
BeanFactoryimplementsConfigura
ble
Lista
ble
BeanFacto
HiTomcat
·
2025-02-09 20:33
Spring
java
spring
rpc
c++ 线程阻塞等待别人激活
在C++中,如果你想要一个线程阻塞并等待其他线程或某种外部条件来“激活”它,通常有以下几种方法:使用条件变量(ConditionVaria
ble
s):条件变量是C++中用于线程同步的一种机制。
科学的发展-只不过是读大自然写的代码
·
2025-02-09 20:31
#
c++线程
c++
开发语言
设计模式-单例模式Singleton Pattern
.饿汉式单例和懒汉式单例1.1饿汉式单例:1.2懒汉式单例:2.如何使懒汉式单例实现线程安全2.1synchronized方法2.2synchronized块2.3双检锁/双重校验锁(DCL,即dou
ble
-checkedlocking
Chamberlain T
·
2025-02-09 20:00
设计模式
设计模式
android自定义view混淆,Android混淆详解
2.混淆的用法2.1如何开启混淆android{buildTypes{release{minifyEna
ble
dtrueshrinkResourcestrueproguardFilesgetDefaultProguardFile
何嵬嵬
·
2025-02-09 20:00
安装perl-DBD-MySQL报错:Requires: libmysqlclient.so.18
问题:通过源码安装pt-ta
ble
-sync和pt-ta
ble
-checksum时,perlMakefile.PL执行异常。
Don1029
·
2025-02-09 19:28
perl
mysql
开发语言
关于ConcurrentHashMap的深刻理解
介绍ConcurrentHashMapConcurrentHashMap是Java中一个线程安全且高效的哈希表实现,它位于java.util.concurrent包下,在多线程环境下可以替代HashTa
ble
qq_29360589
·
2025-02-09 19:58
java
开发语言
Flutter框架之Dart语言——1.SDK环境配置-数据类型-运算符-分支循环语句-异常处理
文章目录一、入门1.配置1)FlutterSDK2)更新path2.基础语法1)入口方法2)注释3.Dart命名规则4.Dart变量5.Dart常量二、数据类型1.基本类型1)数值类型int整型dou
ble
木颤简叶
·
2025-02-09 19:57
Dart
flutter
开发语言
后端
windows
笔记
flutter 专题四十四 关于MacOs Catalina “无法打开***,因为无法验证开发者...”的解决方案
可以使用下面的命令进行授权:sudospctl--master-disa
ble
执行完上面的指令后,在【安全性与隐私】设置的【允许从以下位置下载的App】中会新增一个【任何来源】,如下面所示
leluckys
·
2025-02-09 19:26
Flutter面试与实战
flutter
macos
爬虫技巧汇总
以下是一些常见的用户代理字符串:USER_AGENT_LIST=['Mozilla/4.0(compati
ble
;MSIE7.0;WindowsNT5.1;Trident/4.0;HotLingo2.0
跨界科技汇
·
2025-02-09 19:25
爬虫
爬虫
Third-Party Teardown and Review of the KB6011 Nuclear Radiation Detector
Third-PartyTeardownandReviewoftheKB6011NuclearRadiationDetectorRecently,weacquiredtheKB6011nuclearradiationdetector,andourinitialimpressionsarehighlyfavora
ble
.Asenthusiastswhofrequentlyengageintheeval
kongba007
·
2025-02-09 18:51
KB6011核辐射检测仪
盖革计数器
功能测试
【泛型】T extends Compara
ble
<? super T>
背景看跳表的实现代码1时看到TextendsCompara
ble
,不太理解其含义。理解参考知乎2并自己测试后比较理解了。java中向上转型是转为父类,向下转型是转为子类。
harbor_lee
·
2025-02-09 18:47
java
java
从服务端埋点到Kafka(二)
在相应的游戏逻辑执行时将埋点的json串发送到Kafka代码实现由于游戏服务端采用Java编写,所以现在以Java为例进行说明publicabstractclassLogEventimplementsSerializa
ble
c_jhsp
·
2025-02-09 18:15
后台指标分析应用搭建
kafka
【spark】【在YARN上运行Spark】【Running Spark on YARN】
SparkAddingOtherJARs添加其他JARPreparations筹备工作Configuration配置DebuggingyourApplication调试应用程序SparkProperties【Spark属性】Availa
ble
patterns
资源存储库
·
2025-02-09 17:42
spark
【Apache Paimon】-- 2 -- 核心特性 (0.9.0)
目录1、实时更新1.1、实时大批量更新1.2、支持定义合并引擎1.3、支持定义更新日志生成器2、海量数据追加处理2.1、appendta
ble
2.2、快速查询3、数据湖功能(类比:hudi、iceberg
oo寻梦in记
·
2025-02-09 16:38
Apache
Paimon
大数据
Apache
paimon
数据湖
php perl,PHP语法糖与Perl
$y=$x||"Iamundefined";##Defaultvalue($x==1)ordie"pro
ble
mwith$x";##Worksundersomecircumstances$y=($x1=
weixin_39832829
·
2025-02-09 15:33
php
perl
数据库如何清空重置索引,MySQL PostgreSQL SQLite SQL Server
TRUNCATETA
BLE
ta
ble
_name;TRUNCATETA
BLE
是一个DDL(DataDefinitionLanguage)命令,它会删除表中的所有行并且重置任何AUTO_INCRE
阿雄不会写代码
·
2025-02-09 15:02
数据库
mysql
postgresql
团体程序设计天梯赛-练习集——L1-031 到底是不是太胖了
真实体重与标准体重误差在10%以内都是完美身材(即|真实体重−标准体重|dou
ble
sc(dou
ble
h)//计算完美身材{h-=100;h*=0.9;h*
SY师弟
·
2025-02-09 14:52
GPLT天梯赛
c++
数据结构
开发语言
c语言
算法
GPLT
团队程序设计天梯赛
C语言将两个数合并成一个小数
C语言将两个数(int、unsignedint)合并成一个小数(dou
ble
、float)今天碰到一个问题:需要将两个无符号整型合并成一个小数输出。
qq_45700917
·
2025-02-09 12:09
C语言
RKMPP 在FFmpeg上实现硬编解码
一、编译指令--ena
ble
-cross-compile--cross-prefix=/home/cks/linux_sdk/buildroot/output/rockchip_rk3399pro/host
大王算法
·
2025-02-09 12:35
多媒体开发实战指南
开发语言
python中的for循环
对于一个itera
ble
的变量进行遍历的两种方式:(1)pythonenumerate函数enumerate()函数用于将一个可遍历的数据对象(如列表、元组或字符串)组合为一个索引序列,同时列出数据和数据下标
WYXHAHAHA123
·
2025-02-09 12:35
python
部署open webui 调用ollama启动的deepseek
如已安装可跳过)#自动安装Dockercurl-fsSLhttps://get.docker.com|sh#启动Docker服务sudosystemctlstartdockersudosystemctlena
ble
docker2
MonkeyKing.sun
·
2025-02-09 11:31
eureka
云原生
Ranger Hive Service连接测试失败问题解决
个人博客地址:RangerHiveService连接测试失败问题解决|一张假钞的真实世界异常信息如下:org.apache.ranger.plugin.client.HadoopException:Una
ble
toconnecttoHiveThriftServerinstance
一张假钞
·
2025-02-09 11:00
hive
hadoop
数据仓库
Hive(五)复杂数据类型和分区表
cathive_array.txtzhangsanbeijing,shanghai,tianjin,hangzhoulisichangchu,chengdu,wuhan,beijing#存数据hive(d1_hive)>createta
ble
hive_arr
钻石大门
·
2025-02-09 11:59
Hive
hive的复杂数据类型
文章目录4.复杂数据类型4.1array4.2map4.3sturct4.4补充:嵌套4.复杂数据类型4.1array创建createta
ble
ifnotexiststa
ble
name(idint,namestring
Mr.Sheep-Y
·
2025-02-09 11:59
Hive
hive
复杂数据类型
reqa
ble
在 Firefox 浏览器无法抓包和访问网络
开启reqa
ble
之后,Firefox就无法访问网络了,会显示「有软件正在阻止Firefox安全地连接至此网站」reqa
ble
.com很像是一个安全(连接加密)的网站,但我们未能与它建立安全连接。
·
2025-02-09 11:56
hive中的数据类型
hive中的数据类型:下表列举了Hive所支持的基本数据类型:数据类型:基本数类型:tinyint/smallint/int/bigint:整数类型float/dou
ble
:浮点数类型boolean:布尔类型
qq_42870851
·
2025-02-09 11:27
数据库
hive
数据库
big
data
华为交换机堆叠配置
配置集群卡连接方式[SwitchA]setcssid1\\配置成员交换机的集群ID(缺省值为1)[SwitchA]setcsspriority100\\配置设备的群集优先级[SwitchA]cssena
ble
qq_ceiling
·
2025-02-09 11:56
网络相关
华为
堆叠
快速优雅解决webview_flutter不能Safari调试的问题
这个问题,网上一搜,又是让你去检索WKWebView,找到FWFWebViewHostApi.m文件,然后再改iOS的代码,加一行self.inspecta
ble
=YES;我们开发Flutter项目,尽量还是不要去改插件里的代码
GeniuswongAir
·
2025-02-09 10:20
flutter
Cloudflare通过代理服务器绕过 CORS 限制:原理、实现场景解析
1.1错误现象复现//浏览器控制台报错示例Accesstofetchat'https://chat.qwenlm.ai/api/v1/files/'fromorigin'https://ocr.dou
ble
fenzhuan.me'hasbeenblockedbyCORSpolicy
web2u
·
2025-02-09 09:18
前端框架
安全
node.js
javascript
代理模式
proxy模式
stm32-wifi模块
低功耗
:在待机模式下的功耗非常低,适合电池供电的设备。AT
想要成为糕手。
·
2025-02-09 09:12
stm32
php
嵌入式硬件
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