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BLE(低功耗)蓝牙开发
模式匹配Match...case...
case…if…=>…}match{case条件1=>{函数体};case条件2=>{函数体};case_=>{函数体}}例:定义一个计算方法objectMainextendsApp{vala:Dou
ble
Ayanha
·
2024-02-11 15:59
Scala
scala
Hbase - 迁移数据[导出,导入]
环境使用现在环境上面有一张表logTa
ble
,有一个ext列簇但是没有做预分区,虽然可以强制拆分表,但是split的start,end范围无法精确控制。方式一(先导出再导出)创建导出目录had
kikiki2
·
2024-02-11 14:23
《算法笔记》3.1小节——入门模拟->简单模拟
@[TOC]Contest100000575-《算法笔记》3.1小节——入门模拟->简单模拟1814Pro
ble
mA剩下的树来自http://codeup.cn/contest.php?
木子李_0961
·
2024-02-11 14:13
PLC在物联网中位置—承上启下,与上位机下位机的关联。
一、什么是PLCPLC是可编程逻辑控制器(Programma
ble
LogicController)的缩写,是一种用于工业自动化控制系统的数字计算机。
大千UI工场
·
2024-02-11 14:52
物联网
Project Cost Transactions Are Not Being Transferred To Project Costing
ID445049.1]GoalProjectcostarenotbeingtransferredtotheproject.Costedtransactionsarebeingmarkedas'notapplica
ble
'fortheTransfertoProjectscolu
cuisi0912
·
2024-02-11 14:19
数据库
89-字符串常用方法
str.length);//42.获取某个字符[索引]/charAtletstr="abcd";letch=str[1];//高级浏览器才支持,有兼容性问题,不推荐使用console.log(ch);//
ble
tch
仰望_IT
·
2024-02-11 14:11
elasticsearch增删改查
一、数据类型1、字符串类型(1)text(2)keyword2、数值类型(1)long、integer、short、byte、float、dou
ble
3、日期类型(1)date4、布尔类型(1)boolean5
@红@旗下的小兵
·
2024-02-11 14:11
elasticsearch
elasticsearch
Java并发基础知识
Java并发基础知识启动启动线程的方式只有:1、XextendsThread;,然后X.start2、XimplementsRunna
ble
;然后交给Thread运行线程的状态Java中线程的状态分为6
是辉仔啊
·
2024-02-11 14:08
android
app
java
开发语言
面试
java 串行线程_Java并发之串行线程池实例解析
也就是说,我们的Runna
ble
对象应该有个排队的机制,它们顺序从队列尾部进入,并且从队列头部选择Runna
ble
进行执行。既然我们有了思路,那我们就考虑一下所需要的数据结构?
笨zhu
·
2024-02-11 14:08
java
串行线程
BAT大厂最爱问的Java核心面试百题详细解析!帮你突破瓶颈
线程线程的启动实现Runnab1e接口继承Thread类实现Calla
ble
接口线程的状态线程的方法线程的优先级守护线程未捕获异常处理器并发编程的问题线程引入开销:上下文切换与内存同步线程安全性(原子性
6年老Java
·
2024-02-11 14:07
程序员
java
经验分享
面试
Java并发基础:LinkedBlockingDeque全面解析!
核心概念LinkedBlockingDeque实现了一个线程安全的双端队列(Deque,即dou
ble
-endedqueue),这个队列在两端都可以
程序员古德
·
2024-02-11 14:06
Java并发基础
java
网络
网络协议
Linux x64下编写shellcode - execve(/bin/sh)
sh'pushrbxpushrsppoprdimoval,59syscall2、用nasm编译执行nasm-felf64sh.s-osh.oldsh.o-osh3、显示汇编代码objdump--disassem
ble
静析机言
·
2024-02-11 14:02
超详细~冒险单车销售公司BI-ta
ble
au项目可视化
一、项目介绍1、AdventureWorksCycles相关简介AdventureWorksCycles是AdventureWorks样本数据库所虚构的公司,这是一家大型跨国制造公司。该公司生产和销售金属和复合材料自行车到北美,欧洲和亚洲的商业市场。2000年,AdventureWorksCycles收购了一家位于墨西哥的小型制造工厂ImportadoresNeptuno。Importadores
小磊_7119
·
2024-02-11 14:56
LeetCode 0094.二叉树的中序遍历:递归/迭代(栈模拟递归)
【LetMeFly】94.二叉树的中序遍历:递归/迭代(栈模拟递归)力扣题目链接:https://leetcode.cn/pro
ble
ms/binary-tree-inorder-traversal/给定一个二叉树的根节点
Tisfy
·
2024-02-11 13:02
#
力扣LeetCode
题解
leetcode
深度优先
DFS
二叉树
栈模拟递归
在C语言中static是干嘛的
静态全局变量在程序的整个生命周期内存在,但其可见性被限制在定义它的源文件//在源文件A.c中staticintglobalVaria
ble
;//静态全局变量,只在A.c中可见//在源文件
小小石灰
·
2024-02-11 13:02
stm32
嵌入式硬件
单片机
#268: declaration may not appear after executa
ble
statement in block GPIO_InitTypeDef GPIO_InitSt
错误是:变量"GPIO_InitStructure"的声明出现在可执行语句块中,这是不允许的。在C语言中,变量的声明必须在代码块的开始处,不能在可执行语句之后为了解决这个问题,您需要将变量"GPIO_InitStructure"的声明放在可执行语句之前,并确保在后续的代码中使用了这个变量。例如:intmain(){//变量声明放在代码块的开始处GPIO_InitTypeDefGPIO_InitSt
小小石灰
·
2024-02-11 13:01
单片机
嵌入式硬件
stm32
mcu
HashMap和HashTa
ble
的区别
Hashta
ble
的底层也是一个map1.HashTa
ble
不能插入Null,HashMap可以插入nullpackagecom.example.demo.mapper;importjava.util.HashMap
我是一只代码狗
·
2024-02-11 13:29
java
java
开发语言
Python 3 中使用 pandas 和 Jupyter Notebook 进行数据分析和可视化
在本教程中,我们将介绍如何设置一个大型数据集,pandas的groupby()和pivot_ta
ble
()函数,以及如何可视化数据。要熟悉pandas包,您可以阅读我们的教程《Python3中p
张无忌打怪兽
·
2024-02-11 13:29
Python
python
pandas
jupyter
Java多线程与线程池技术
//任务Runna
ble
runna
ble
=()->System.out.println(Thread.currentT
赛先生和泰先生
·
2024-02-11 13:35
Android Compose 动画使用详解(八)Animata
ble
的使用
本篇将为大家介绍更底层的动画Api:Animata
ble
Animata
ble
在前面介绍animateXxxAsState的时候我们跟踪源码发现其内部调用的是a
我爱田Hebe
·
2024-02-11 13:52
nRF52832 — ANCS协议介绍
之后IOS系统就会通过
ble
推送消息给设备了
文化人Sugar
·
2024-02-11 13:27
nRF52832
ANCS
nRF52832
【
BLE
】ANCS(Apple Notification Center Service)
目录1.前言1.1名词解释1.2ANCS概述2.ANCS的特征2.1通知源2.2控制点和数据源2.3获取通知属性2.4获取应用属性2.5执行通知操作2.6通知操作3.更多详情参考1.前言1.1名词解释NP(NotificationProvider):消息提供者,指的是ANCS服务的生产者,即IOS设备。NC(NofiticationConsumer):消息接受者,指的是ANCS服务的客户端,即周边
强人电子
·
2024-02-11 13:56
BLE应用
ios
Android 蓝牙 IOS ANCE协议介绍 - 史上最详细
一:
BLE
-ANCS协议介绍1、ANCS(AppleNotificationCenterService)是IOS系统中的一个通知服务,使用该服务的方式为,设备连接手机后,设备上的GATT客户端发现IOS
知识分享小达人
·
2024-02-11 13:56
Bluetooth
手机
平板
穿戴知识分享
hfp
ble
蓝牙
bluetooth
ble
android
hfp
一文把
ble
的ancs说清楚
一:
BLE
-ANCS协议介绍ANCS(AppleNotificationCenterService)是IOS系统中的一个通知服务,使用该服务的方式为,设备连接手机后,设备上的GATT客户端发现IOS手机端上的
Chester_Carson
·
2024-02-11 13:25
ble
ancs
ble
notify
BLE
蓝牙开发
ANCS服务开发
在手表应用中,随着应用的复杂程度越来越高,通常离不开消息提醒的智能推送,所以这里主要针对ANCS做讲解,这是APPLEIOS系统的规范,android要想实现类似功能,一般采用私有协议方式,没有统一规范。ANCS基本知识ANCS(苹果通知中心,AppleNotificationCenterService)的目的是提供给蓝牙外设一种简单、方便的获取ios设备通知信息的方式。使得蓝牙手环、手表可以收到
TomWang-0214
·
2024-02-11 13:25
MCU
BLE
RTK
ANCS
BLE
IOS
1.3. ANCS(Apple notification center service) profile描述及应用
用于对接苹果通知中心
BLE
服务,NP指代iPhone或iPad,NC指代
BLE
终端设备。
叔子衿
·
2024-02-11 13:55
BR/BLE
ios
ble
ANCS
【防火墙】linux系统中防火墙的基本操作(建议收藏!)
systemctlstartfirewalld2.关闭防火墙systemctlstopfirewalld 3.查看防火墙状态systemctlstatusfirewalld 4.开机自动禁用systemctldisa
ble
firewalld5
天亮之前_ict
·
2024-02-11 13:23
网络工程师成长日志
linux
服务器
JDK源码-0909HashMap
HashMap出现总是与HashTa
ble
一起,于是源码开篇介绍的就有两者的区别HashMap是哈希表的实现,基本是等效于HashTa
ble
的,但是hashmap是不同步的,且支持null值与nullKey.hashmap
学习吧朱小宁
·
2024-02-11 13:01
力扣[面试题 01.02. 判定是否互为字符重排(哈希表,位图)
Pro
ble
m:面试题01.02.判定是否互为字符重排文章目录题目描述思路复杂度Code题目描述思路思路1:哈希表1.若两个字符串长度不相等,则一定不符合题意;2.创建一个map集合,先将字符串s1中的每一个字符与其对应的数量存入集合
LNsupermali
·
2024-02-11 13:23
力扣题目
leetcode
散列表
算法
oracle 数据字典查询,oracle查询数据字典的sql
使用的sql语句如下:selectt1.username用户,t2.TA
BLE
_NAME表名称,t3.comments表业务含义,t2.COLUMN_NAME字段名称,t4.comments字段业务含义
weixin_39784263
·
2024-02-11 12:13
oracle
数据字典查询
oracle关于表空间的数据字典,Oracle常用的数据字典
DBA_TA
BLE
SPACES:关于表空间的信息DBA_TS_QUOTAS:所有用户表空间限额DBA_FREE_SPACE:所有表空间中的自由分区DBA_SEGMENTS:描述数据库中所有段的存储空间DBA_EXTENTS
西瓜呆毛汪
·
2024-02-11 12:42
C语言-----自定义类型-----结构体&枚举&联合
都是一群数据的集合,不同的是数组当中的数据是相同的类型,但是结构体中的数据类型可以不相同,结构体里的成员叫做成员变量结构体类型是C语言里面的一种自定义类型,我们前面已经了解到过int,char,float,dou
ble
阑梦清川
·
2024-02-11 12:09
C语言
c语言
开发语言
使用 Kestrel 自托管https 并作为 Windows 服务启动 Blazor 提示: 无法配置 HTTPS 端点。未指定服务器证书,找不到默认的开发者证书解决方法
原文链接https://stackoverflow.com/questions/53300480/una
ble
-to-configure-https-endpoint-no-server-certificate-was-specified-and-the
Densen2014
·
2024-02-11 12:01
Blazor
.Net6
Net7
https
windows
服务器
01212022《拆掉思维里的墙》第023/ 500本 【佳庆方舟读书】
从impossi
ble
到I'mpossi
ble
。拓展你的人生版图,成长为自己的样子。拥抱生活的人,生活也拥抱他,远离生活的人,生活也远离他。从绝望中寻找希望,人生终将辉煌。
旭哥_优秀是一种习惯
·
2024-02-11 12:17
RxSwift-DisposeBag垃圾袋
DisposeBag垃圾袋分析,demo运行如下:self.intervalOB=Observa
ble
.interval(.seconds(1),scheduler:MainScheduler.init
May_Dobin
·
2024-02-11 12:15
ORA-01745: invalid host/bind varia
ble
name
近期,有一个批量插入的sql,突然报出错误“ORA-01745:invalidhost/bindvaria
ble
name(无效的主机/绑定变量名称错误)”。
咦咦咦萨
·
2024-02-11 12:09
Oracle Error:ORA-01465: 无效的十六进制数字【解决办法】
自带的create方法添加数据时,会报错:无效的十六进制数字解决方法:1、更改数据库中的字段类型改为NCLOB类型,2、使用@Query自己写SQL把String类型转成字节insertintoXXXta
ble
米米_a13d
·
2024-02-11 12:58
element表格点击行即选中该行复选框
$refs.multipleTa
ble
.toggleRowSelection(row
lgx211
·
2024-02-11 12:26
mysql将一张表中的某些数据更新到另一张表中
updateta
ble
1,ta
ble
2setta
ble
1.column=ta
ble
1.columnwhere额外条件
H_J_J
·
2024-02-11 12:52
数据库sql知识
M63-第十三周作业
1、ansi
ble
-playbook实现MySQL的二进制部署1.1安装ansi
ble
#yum-yinstallansi
ble
1.2配置主机清单文件#vi/etc/ansi
ble
/hosts[local
布格雷斯
·
2024-02-11 11:17
Minio Decommission Server Pools
MinIOsupportsdecommissioningandremovingserverpoolsfromadeploymentwithtwoormorepools.Todecommission,theremustbeatleastoneremainingpoolwithsufficientavaila
ble
spacetoreceivetheobjectsfromthedecommissione
网络飞鸥
·
2024-02-11 11:17
minio
servlet
如何使用vscode登陆服务器
1.VScode下载地址:https://vscode.cdn.azure.cn/sta
ble
/c722ca6c7eed3d7987c0d5c3df5c45f6b15e77d1/VSCode-darwin-universal.zip2
蔷薇的天空
·
2024-02-11 11:16
vscode
服务器
iOS UITa
ble
ViewCell 多选时改变编辑状态图片
UITa
ble
ViewCell编辑状态时会出现多选按钮,最近项目有需求这里要改成自己的图片和去掉一下点击效果,总结一下:最终结果最终结果.png1.创建一个继承与UITa
ble
ViewCell的类EditCellEditCell.h
浅宇落
·
2024-02-11 11:41
深入探索MySQL 8:隐藏索引与降序索引的新特性
一、隐藏索引(Invisi
ble
Indexes)1.背景与意义在数据库的日常维护中,索引的
地瓜伯伯
·
2024-02-11 11:41
java
mysql
事件机制 事件捕获 处于目标阶段 事件冒泡 事件委托
直到根节点事件流:事件捕获期(IE10以下不支持捕获期)->处于目标阶段->事件冒泡期当子元素不想触发父元素事件,可停止事件传播event.stopPropagation()或者event.cancelBub
ble
蘑菇酱960903
·
2024-02-11 11:17
数据库隔离级别的选择与实现
常见的隔离级别包括读未提交(ReadUncommitted)、读已提交(ReadCommitted)、可重复读(Repeata
ble
Read)和串行化(Serializa
ble
)。
hymua
·
2024-02-11 11:00
数据库
oracle
k8s 集群搭建 1.18.0
1.初始准备确保集群间机器互相ping通关闭selinux:sed-i's/enforcing/disa
ble
d/'/etc/selinux/configsetenforce0关闭swap:swapoff-a
dyyy_li
·
2024-02-11 11:04
2022年5月6日
每年学费加生活费加请家教基本一个工作5年的人一年的工资都不够用,这样得来的学位可能也用不上,太亏了,和红说,dou
ble
pay如果他挣的多,我就给的多
幸运遇见
·
2024-02-11 10:16
Promise.race 结果(深入理解ES6书籍有误)
概念MDN解释ThePromise.race(itera
ble
)methodreturnsapromisethatresolvesorrejectsassoonasoneofthepromisesintheitera
ble
resolvesorrejects
木匠_说说而已
·
2024-02-11 10:34
浏览器常用的输出方式
console.xxxconsole.log()leta=10;console.log(a);//10console.dir():输出一个对象的详细键值对信息console.dir(document.body);console.ta
ble
Leonard被注册了
·
2024-02-11 10:44
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