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BLE蓝牙
Java语言基础 关键字与保留字
javase/tutorial/java/nutsandbolts/_keywords.html用于定义数据类型的关键字classinterfaceenumbyteshortintlongfloatdou
ble
c
鹿人甲丁
·
2025-01-16 23:32
java
java
Java异常 (throwa
ble
)
异常主要是error和exception两种(throwa
ble
的两个子类)1、Error类及其子类,代表的是Error类及其子类,代表的是jvm本身的错误,错误不能被程序通过代码处理2、Exception
凡人多做梦
·
2025-01-16 23:57
java
c++语法基础
java
力扣 155. 最小栈
https://leetcode.cn/pro
ble
ms/min-stack/description题目实现一个stack,可以o1返回stack的最小值思路刚开始套单调队列了,后来发现并不需要那么麻烦每次记录比当前栈顶还小的值
pursuit_csdn
·
2025-01-16 22:26
力扣热题
100
leetcode
算法
职场和发展
upstart man
NAMEinit-UpstartprocessmanagementdaemonSYNOPSISinit[OPTION]...DESCRIPTIONinitistheparentofallprocessesonthesystem,itisexecutedbythekernelandisresponsi
ble
forstartingallotherproce
weixin_30672019
·
2025-01-16 22:25
shell
runtime
Vue3中使用hook实现按住Shift快速勾选el-ta
ble
功能
需求描述最近产品说,某个el-ta
ble
要实现按住shift键快速勾选功能大概就是仿windows系统的文件shift按住选中功能反正就是尽可能多的让用户勾选方便用户快速勾选操作github完整代码:https
·
2025-01-16 22:04
MARC 数据解析(qbit)
前言MARC是MachineReada
ble
Catalog(ue)的缩写,意即“机器可读目录”,即以代码形式和特定结构记录在计算机存储载体上的、用计算机识别与阅读的目录。
·
2025-01-16 22:01
pythonlibrary
Java Throwa
ble
Java的Exception处理机制中,基类是:throwa
ble
,然后exception和error继承自throwa
ble
.RuntimeException继承自Exception.
tony_elizabeth
·
2025-01-16 22:52
Java
Java
Sonatype Nexus OSS 构建私有docker 仓库
1.DockerEngine配置{"builder":{"gc":{"defaultKeepStorage":"20GB","ena
ble
d":true}},"dns":["8.8.8.8","114.114.114.114
UTF杠8
·
2025-01-16 22:19
docker
容器
运维
开源
实现列表拖拽排序功能,可新增,可删除,拖住排序,dragga
ble
,dragstart,dragend,dragover,利用好这几个事件,完美实现拖拽功能
你好呀,我是爱编程的Sherry,很高兴在这里遇见你!我是一名拥有十多年开发经验的前端工程师。这一路走来,面对困难时也曾感到迷茫,凭借不懈的努力和坚持,重新找到了前进的方向。我的人生格言是——认准方向,坚持不懈,你终将迎来辉煌!欢迎关注我,我将在这里分享工作中积累的经验和心得,希望我的分享能够给你带来帮助。文章目录前言效果展示功能说明新增:删除:拖拽排序:关键点:代码实现html(结构)css(样
Sherry Tian
·
2025-01-16 21:18
javascript
javascript
前端
dou
ble
值精确到小数点后两位
dou
ble
值精确到小数点后两位功能将程序中的dou
ble
值精确到小数点后两位。可以四舍五入,也可以直接截断。比如:输入12345.6789,输出可以是12345.68也可以是12345.67。
码农小灰
·
2025-01-16 21:13
java
java
编程语言
java throwa
ble
java异常throwa
ble
分为exception、errorerror错误程序无法处理的错误exception异常程序本身可以处理的异常exception分为运行时异常、非运行异常[运行时异常、error
happyzwh
·
2025-01-16 21:42
java
java
Java Throwa
ble
类
PublicclassThrowa
ble
extendsObjectimplementsSerializa
ble
在Java语言中,Throwa
ble
类是所有Error和Exception的超类。
IfThenElse-Meituan
·
2025-01-16 20:33
Java
Classes
Reference
Python中常用的函数:map()详解
map()函数语法map()函数的基本语法如下:map(function,itera
ble
,...)functi
Sitin涛哥
·
2025-01-16 20:00
Python
python
开发语言
Java 异常架构Throwa
ble
1.Throwa
ble
类的概述在Java中,Throwa
ble
是所有错误和异常的超类。只有继承自Throwa
ble
类的实例可以被抛出或捕获。
Flying_Fish_Xuan
·
2025-01-16 19:28
java
架构
开发语言
SpringBoot整合OpenFeign和Hystrix
Feign和hystrix开启hystrix熔断器application.ymlfeign:hystrix:ena
ble
d:true方式一:简单,但无法获取异常信息和状态号FeignClient类@FeignClient
·yying·
·
2025-01-16 19:24
java
分布式
spring
boot
hystrix
后端
sql模糊关联匹配
需求目标:建立临时表dropta
ble
grafana_bi.zbj_gift_2024;USEgrafana_bi;CREATETA
BLE
zbj_gift_2024(idINTAUTO_INCREMENTPRIMARYKEY
南湖渔歌
·
2025-01-16 19:52
Python
SQL
sql
android
数据库
DDR 带宽的计算与监控
DDR带宽(Dou
ble
DataRateBandwidth)是指DDR内存在一秒内可以传输的数据量,通常以GB/s(Gigabytespersecond)为单位。
·
2025-01-16 18:52
算法自动驾驶
MySQL数据库表的设计
2019独角兽企业重金招聘Python工程师标准>>>表的约束主键约束createta
ble
student(idintprimarykey,namevarchar(40));createta
ble
student
weixin_34289744
·
2025-01-16 18:20
数据库
python
用c#做的打地鼠小游戏,整理一下上课学的
小游戏首先,我们要新建一个窗体应用程序,搭建好窗体的框架,有三个la
ble
,分别是打地鼠,游戏时间和游戏得分,还有一个button按钮,text属性改为开始游戏.在每个土堆上拖入一个picturebox
臨鱼羡上天
·
2025-01-16 18:47
计算机软件资料
适合小白
小游戏
从零开始学 MobX Store:简化 React 数据管理
MobX的两种写法1.装饰器写法(旧版本常见)2.makeObserva
ble
写法
·
2025-01-16 18:46
javascriptreact
【GreatSQL优化器-11】finalize_ta
ble
_conditions
【GreatSQL优化器-11】finalize_ta
ble
_conditions一、finalize_ta
ble
_conditions介绍GreatSQL的优化器在对join做完表排序后,在make_join_query_block
·
2025-01-16 18:15
数据库mysql
《CPython Internals》阅读笔记:p151-p151
marshalingMarshallingormarshaling(USspelling)istheprocessoftransformingthememoryrepresentationofanobjectintoadataformsuita
ble
f
·
2025-01-16 18:14
python
Nginx 如何设置 Upgrade-Insecure-Requests 报头 ?
Step1:定位Nginx配置主nginx配置文件通常位于/etc/nginx/nginx.conf特定于站点的配置通常在/etc/nginx/sites-availa
ble
/Step2:编辑Nginx
·
2025-01-16 18:14
nginx
报错解决:undefined symbol: _ZN15TracebackLoggerC1EPKc, version libcudnn_ops_infer.so.8
搭建resem
ble
-enhance这个项目的过程中,在Ubuntu20.04的机器上跑,报错如下:undefinedsymbol:_ZN15TracebackLoggerC1EPKc,versionlibcudnn_ops_infer.so
打工人你好
·
2025-01-16 18:46
python
Spring boot面试题---- Spring boot项目运行原理
这个注解是一个组合注解,它包含了@Configuration、@Ena
ble
AutoConfiguration和@ComponentScan。
指尖下的技术
·
2025-01-16 18:12
Java面试题
spring
boot
java
面试
Spring boot面试题---- Spring Boot 自动配置的原理
这个文件中包含了许多配置信息,其中关键的是org.springframework.boot.autoconfigure.Ena
ble
AutoConfiguration的配置。
指尖下的技术
·
2025-01-16 18:12
spring
boot
oracle
数据库
AirPlay认证是什么?
AirPlay是由美国苹果公司推出的无线技术,Airplay可以将iPhone、iPad或iPodtouch等设备上的视频、音频以及图片传输到第三方认证设备上,传输的载体为Wi-Fi,与
蓝牙
无线有本质的不同
microtest131
·
2025-01-16 17:09
检测认证
基于STM32单片机风速风向PM2.5温度湿度光照空气环境无线
蓝牙
APP/WIFI-APP控制/WIFI视频监控-APP控制设计S137
S137风速+风向+PM2.5+温度+湿度+光照+空气质量+温风阈值+声光报警+按键+TFT彩屏+(无线方式选择)产品功能描述:本系统由STM32F103C8T6单片机核心板、1.44寸TFT彩屏、(无线
蓝牙
通旺科技
·
2025-01-16 17:09
单片机
stm32
嵌入式硬件
项目启动报错port 9848 is availa
ble
我用的注册中心是nacos启动的时候只指定了8848端口,在项目springbootspringcloudspringcloudalibaba版本低的时候没有什么,当我的版本升级了成了springboot2.3.12.RELEASEspringcloudHoxton.SR12springcloudalibaba2.2.10-RC1应该是调用需要用到9848端口,我单独部署了下nacos相同的版本是
雨露天泽
·
2025-01-16 17:09
java
spring
cloud
spring
boot
百万架构师第十三课:源码分析:Spring 源码分析:Spring核心IOC容器及依赖注入原理|JavaGuide
BeanDefinition//传说已久的IOC容器privatefinalMapbeanDefinitionMap=newConcurrentHashMapTdoGetBean(finalStringname,@Nulla
ble
finalClassrequire
·
2025-01-16 17:50
后端
在阿里云里面服务器怎么样可以更好的链接数据库
服务器阿里云RDS数据库问题:如何在阿里云服务器的终端使用shell命令连接RDS云数据库解决方法:1.阿里云服务器安装MySQLsudoapt-getinstallmysql-server如果出现una
ble
tolocatepackagemysql-server
小宋来编程
·
2025-01-16 17:07
前端
服务器
运维
SQL: 求连续登录天数,间隔1天也算作连续
解释:如果一个用户在第1,3,5,6,9天登录游戏,则视为连续6天登录CREATETA
BLE
log(idVARCHAR(1),timedate);insertintologvalues('A','2024
·
2025-01-16 17:46
雷池社区版WAF 容器常用环境变量说明
sslmode=disa
ble
PG地址LUIGI_HOSTsafeline-luigiluigi服务的host地址CHAOS_SERVE_
·
2025-01-16 17:43
应急救援路径规划中的蚁群算法与路径评价研究【附代码】
数据挖掘与清洗大数据处理与存储技术机器学习与深度学习模型数据可视化与报告生成分布式计算与云计算数据安全与隐私保护擅长工具:Python/R/Matlab数据分析与建模Hadoop/Spark大数据处理平台SQL数据库管理与优化Ta
ble
au
拉勾科研工作室
·
2025-01-16 17:36
算法
433M无线收发模块详解
无线通信技术包括WiFi、
蓝牙
、NFC、Zigbee、5G等等。本次我要给大家介绍无线通信技术之一的433M,从基本概念到工作原理再到实际应用。我们将逐步剖析433M模块背后的技术细节。
·
2025-01-16 15:43
笔记:vue 打包忽略部分文件检查。
在需要忽略的文件中加入/*eslint-disa
ble
*/1.js文件首行直接加入/*eslint-disa
ble
*/2.vue文件script中加入/*eslint-disa
ble
*/3.配置文件进行配置看大佬文章
apgk1
·
2025-01-16 15:48
vue
笔记
vue
Shell脚本实现Twitter的Snowflake算法的ID生成器
shell脚本都是通过mysql命令生成insert语句,以前生成insert语句时,我都是先selectMAX(id)fromta
ble
赋值到MAX_ID,然后拼接,类似于max_id_sql="selectMAX
·
2025-01-16 15:03
关于Elementui中el-select自动展开
项目需求:el-ta
ble
带行编辑。开发中遇到一旦行编辑过多,页面就变得奇卡无比。然后就做了假的输入框代替,后来又遇到需要二次点击才能正常聚焦,客户很不满意。呵呵呵。。。
·
2025-01-16 15:31
Mysql入门基础必备知识
创建数据库和表:使用CREATEDATABASE创建数据库,使用CREATETA
BLE
创建表。修改数据库和表:使用ALTERDATABASE修改数据库属性
平常心cyk
·
2025-01-16 14:38
数据库
mysql
UI学习——cell的复用和自定义cell
目录cell的复用手动(非注册)自动(注册)自定义cellcell的复用在iOS开发中,单元格复用是一种提高表格(UITa
ble
View)和集合视图(UICollectionView)滚动性能的技术。
Magnetic_h
·
2024-09-16 10:57
ui
学习
SQL Server_查询某一数据库中的所有表的内容
1.查看所有表的表名要列出CrabFarmDB数据库中的所有表(名),可以使用以下SQL语句:USECrabFarmDB;--切换到目标数据库GOSELECTTA
BLE
_NAMEFROMINFORMATION_SCHEMA.TA
BLE
SWHERETA
BLE
_TYPE
qq_42772833
·
2024-09-16 10:21
SQL
Server
数据库
sqlserver
数组去重
hashta
ble
啊,通过对象的hash办法
好奇的猫猫猫
·
2024-09-16 09:59
Day17笔记-高阶函数
函数作为B函数的参数,B函数调用完成之后,会得到一个结果,则B函数被称为高阶函数常用的高阶函数:map(),reduce(),filter(),sorted()1.map()map(func,itera
ble
~在杰难逃~
·
2024-09-16 09:48
Python
笔记
python
开发语言
pycharm
数据分析
【PG】常见数据库、表属性设置
ALTERTA
BLE
[ta
ble
name]REPLICAIDENTITYFULL;批量表操作通过代码块的方式,对某个schema中的所有表一起更新其复制标识。
江无羡
·
2024-09-16 09:44
数据库
(179)时序收敛--->(29)时序收敛二九
1目录(a)FPGA简介(b)Verilog简介(c)时钟简介(d)时序收敛二九(e)结束1FPGA简介(a)FPGA(FieldProgramma
ble
GateArray)是在PAL(可编程阵列逻辑)
FPGA系统设计指南针
·
2024-09-16 07:32
FPGA系统设计(内训)
fpga开发
时序收敛
(180)时序收敛--->(30)时序收敛三十
1目录(a)FPGA简介(b)Verilog简介(c)时钟简介(d)时序收敛三十(e)结束1FPGA简介(a)FPGA(FieldProgramma
ble
GateArray)是在PAL(可编程阵列逻辑)
FPGA系统设计指南针
·
2024-09-16 07:31
FPGA系统设计(内训)
fpga开发
时序收敛
(158)时序收敛--->(08)时序收敛八
1目录(a)FPGA简介(b)Verilog简介(c)时钟简介(d)时序收敛八(e)结束1FPGA简介(a)FPGA(FieldProgramma
ble
GateArray)是在PAL(可编程阵列逻辑)、
FPGA系统设计指南针
·
2024-09-16 07:31
FPGA系统设计(内训)
fpga开发
时序收敛
(159)时序收敛--->(09)时序收敛九
1目录(a)FPGA简介(b)Verilog简介(c)时钟简介(d)时序收敛九(e)结束1FPGA简介(a)FPGA(FieldProgramma
ble
GateArray)是在PAL(可编程阵列逻辑)、
FPGA系统设计指南针
·
2024-09-16 07:31
FPGA系统设计(内训)
fpga开发
时序收敛
(160)时序收敛--->(10)时序收敛十
1目录(a)FPGA简介(b)Verilog简介(c)时钟简介(d)时序收敛十(e)结束1FPGA简介(a)FPGA(FieldProgramma
ble
GateArray)是在PAL(可编程阵列逻辑)、
FPGA系统设计指南针
·
2024-09-16 07:31
FPGA系统设计(内训)
fpga开发
时序收敛
(153)时序收敛--->(03)时序收敛三
1目录(a)FPGA简介(b)Verilog简介(c)时钟简介(d)时序收敛三(e)结束1FPGA简介(a)FPGA(FieldProgramma
ble
GateArray)是在PAL(可编程阵列逻辑)、
FPGA系统设计指南针
·
2024-09-16 07:01
FPGA系统设计(内训)
fpga开发
时序收敛
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