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低功耗蓝牙BLE
pgsql 筛选中文字符正则_Postgresql 正则表达式
9.7.3.POSIX正则表达式Ta
ble
9-11列出了所有可用的用于POSIX正则表达式的操作符。
是山羊还是绵羊
·
2024-08-30 14:20
pgsql
筛选中文字符正则
mysql系列之json类型操作
二、json类型操作指南2.1指定字段类型为jsonCREATETA
BLE
`student`(`id`intNOTNULLAUTO_INCREMENT,`info`jsonDEFAULTNULL,PRIMARYKEY
卡卡舅舅
·
2024-08-30 14:49
json
There is no getter for property named 'sn' in 'class java.lang.String'
结果selectidfromta
ble
andsn=#{sn}报错的情况只有一个String参数用了<where<iftest标签,没用_parameter没用<iftest,也没用wheresn
在下小保
·
2024-08-30 14:59
CSS基础 水平垂直居中
几种实现水平垂直居中方式利用定位+margin:auto利用定位+margin:负值利用定位+transformta
ble
布局flex布局grid布局利用定位+margin:auto先上代码:.father
呼叫6945
·
2024-08-30 14:49
CSS篇
css
前端
css3
No CMAKE_CXX_COMPILER could be found. Tell CMake where to find the compiler by setting either t
):NoCMAKE_CXX_COMPILERcouldbefound.TellCMakewheretofindthecompilerbysettingeithertheenvironmentvaria
ble
"CXX"ortheCMakecacheentryCMAKE_CXX_COMPILERtothefullpatht
%d%d2
·
2024-08-30 13:16
linux
运维
服务器
生信小白,求助R
86186/AppData/Local/R/win-library/4.3’(因为‘lib’没有被指定)Warningininstall.packages:package‘rjson’isnotavaila
ble
forthisversionofRAversionofthispackageforyourversionofRmightbeavaila
ble
elsewh
kunking_zhu
·
2024-08-30 13:14
r语言
浙大 | PTA 自测-5 Shuffling Machine (20分)
Shufflingisaprocedureusedtorandomizeadeckofplayingcards.Becausestandardshufflingtechniquesareseenasweak,andinordertoavoid“insidejobs”whereemployeescollaboratewithgam
ble
rsbyperforminginadequateshuffles
赞美_太阳!
·
2024-08-30 12:41
数据结构-起步能力自测
c语言
oj系统
mysql-day02
创建数据库mydb,设置编码集UTF8createdatabaseifnotexistsmydbcharactersetutf8;--切换到mydb数据库usemydb;--删除emp表结构dropta
ble
ifexistsemp
luoyiang
·
2024-08-30 12:09
mysql
数据库
vue 使用el-ta
ble
设置了show-overflow-tooltip属性,路由跳转后,气泡不消失的解决办法
文章目录一、问题场景二、解决方法1.问题bug2.最终解决总结一、问题场景在vue项目里使用el-ta
ble
做一个列表页面,表格设置了show-overflow-tooltip属性,文字过长时鼠标滑过会展示气泡显示全部文字内容
前端小白记录
·
2024-08-30 12:09
vue.js
前端
javascript
elementui
前端框架
查看mysql当前连接数和最大连接数
1、查看mysql当前连接数和最大连接数1.1、查看mysql当前连接数:SHOWSTATUSWHERE`varia
ble
_name`='Threads_connected';1.2、查看mysql最大连接数
hzw0510
·
2024-08-30 12:38
MySQL
mysql
数据库
PTA 自测-5 Shuffling Machine
Shufflingisaprocedureusedtorandomizeadeckofplayingcards.Becausestandardshufflingtechniquesareseenasweak,andinordertoavoid“insidejobs”whereemployeescollaboratewithgam
ble
rsbyperforminginadequateshuffles
byakki
·
2024-08-30 12:37
python实战
PTA 自测-5 Shuffling Machine(DS)
Shufflingisaprocedureusedtorandomizeadeckofplayingcards.Becausestandardshufflingtechniquesareseenasweak,andinordertoavoid"insidejobs"whereemployeescollaboratewithgam
ble
rsbyper
acDream_
·
2024-08-30 12:07
●算法很美
PTA 自测-5 Shuffling Machine (20 分) c语言
Shufflingisaprocedureusedtorandomizeadeckofplayingcards.Becausestandardshufflingtechniquesareseenasweak,andinordertoavoid"insidejobs"whereemployeescollaboratewithgam
ble
rsbyperforminginadequateshuffles
扶栏笑看花满园
·
2024-08-30 12:07
PTA题目
关于在vue2中给el-ta
ble
加边框的写法
分三个位置分别给el-ta
ble
添加边框线样式
又写了一天BUG
·
2024-08-30 12:36
vue.js
javascript
前端
嵌入式学习——4——c++ 结构体+类
1、数据类型基本数据类型:char、int、float、dou
ble
、string、bool构造数据类型:数组、指针、结构体、共用体、枚举、类2、引用引用就是别名数据类型&引用名=同类型的变量名(&引用符号
koka_jerry
·
2024-08-30 11:32
学习
c++
算法
CentOS 7 中firewall-cmd命令
yuminstallfirewalld开启服务systemctlstartfirewalld.service关闭防火墙systemctlstopfirewalld.service开机自动启动systemctlena
ble
firewalld.service
_奇变偶不变_
·
2024-08-30 11:27
Python基础03变量与函数
###### Chapter3变量与函数Varia
ble
sandFunctions##############变量:标签物理空间存储的位置调用的时候会指向“门牌号”x=5print(x)print(x*
向日葵般的数学人~
·
2024-08-30 11:00
python
python
numpy
开发语言
ubuntu python环境变量_ubuntu-设置系统环境变量
环境变量简介bashshell用一个叫做环境变量(environmentvaria
ble
)的特性来存储有关shell会话和工作环境的信息.环境变量的使用大大方便了程序或者shell中运行的脚本查找和访问内存中存储的数据和系统信息
jun zheng
·
2024-08-30 10:57
ubuntu
python环境变量
常用的 Spring Boot 注解及其作用
功能:该注解整合了三个常用注解:@Configuration、@Ena
ble
AutoConfiguration和@Compon
chenwenxing228
·
2024-08-30 10:57
SpringBoot
spring
boot
后端
java
Android12 添加设置控制导航栏显示和状态栏下拉
添加key值位置:frameworks/base/core/java/android/provider/Settings.java/***Controlnavigationbarena
ble
d*/@Reada
ble
framework-coder
·
2024-08-30 10:23
Android12
系统修改与定制
panelbar
navigationbar
Spring Boot常用注解及其含义
SpringBoot常用注解及其含义注解含义@SpringBootApplication标记主应用程序类,包含@Configuration、@Ena
ble
AutoConfiguration和@ComponentScan
拾柒mm
·
2024-08-30 10:52
java
spring
boot
linux查看nat配置文件,linux下NAT配置
rc.local加入:.....................................................echo1>/proc/sys/net/ipv4/ip_forwardipta
ble
s-tnat-APOSTROUTING-s192.168.44.0
刘巍然-学酥
·
2024-08-30 09:20
linux查看nat配置文件
Ansi
ble
运维
配置主机主机名IP地址角色Control10.0.17.200控制节点(manager)Node110.0.17.201控制节点(test)Node210.0.17.202控制节点(proxy)Node310.0.17.203控制节点(web1)Node410.0.17.204控制节点(web2)Node510.0.17.205控制节点(database)ubuntu最小化安装源:https://
条纹布鲁斯
·
2024-08-30 09:19
ansible
运维
2021-09-06
六点签到4192天热门的商业模式往往有着残酷的竞争和较高的淘汰率,因此未必是一个好的机会,但通过MVP(MinimallyVia
ble
Product,即最小可行性产品)分析、微循环检验、价值链拆解,他反而能够在细小的垂直领域发现未被满足的需求
感恩学习相信小陶
·
2024-08-30 09:30
Ta
ble
au日常分析小技巧(17): 自定义日期(二)
上一个技巧我们说到自定义日期功能,我们来看它的应用,数据源还是超市数据。创建一个参数,【数据类型】选择【字符串】,【允许的值】选择【列表】,在列表中输入1显示为【年】,2显示为【季度】,3显示为【月】,参数命名为日期转化,如图所示:将创建好的参数显示参数控件,再创建一个计算与创建的参数【日期转化】产生联系,if[日期转换]='1'then[订单日期(年)]elseif[日期转换]='2'then[
Tableau日常小技巧
·
2024-08-30 08:08
uniapp u-popup封装弹框背景滚动/滚动穿模
hidden':'visi
ble
')":overlayStyle="{'touch-action':'none'}"{}":style="'overflow:'+(show?'
不法
·
2024-08-30 08:13
uniapp
uni-app
chrome
javascript
python测试框架之pytest (一)
1.概述pytest官方文档介绍:pytest:helpsyouwritebetterprogramspytestisaframeworkthatmakesbuildingsimpleandscala
ble
testseasy.Testsareexpressiveandreada
ble
—noboilerplatecoderequired.Getstartedinminuteswithasmallun
大可MM
·
2024-08-30 08:43
python
python自动化测试
python
单元测试
MySQL数据库锁、MVCC与事务隔离级别的关系
上一篇文章中讲了MySQL的事务隔离级别(mysql数据库事务的隔离级别),有个问题一直困扰了自己很长时间,MySQL的默认事务隔离级别(REPEAT
BLE
-READ)个人理解通过MVCC就可以很好的实现
join_a922
·
2024-08-30 08:53
Hive3:列注释、表注释等乱码解决方案
--在Hive的MySQL元数据库中执行usehive;1).修改字段注释字符集alterta
ble
COLUMNS_V2modifycolumnCOMMENTvarchar(256)charactersetutf8
生产队队长
·
2024-08-30 08:09
HIVE
hive
Flask+LayUI开发手记(五):树型表格实现数据展示与编辑
说起来,树型表格treeTa
ble
绝对是后端程序员的巨大福利。
hbrown
·
2024-08-30 08:39
layui
前端
javascript
【算法-冒泡、选择、插入】
冒泡定义冒泡排序(Bub
ble
Sort)是一种简单的排序算法,其基本思路是将待排序序列中相邻元素进行比较,若顺序不符合要求,则交换两个元素的位置。通过不断重复该过程,直至序列中所有元素都符合要求为止。
严文文-Chris
·
2024-08-30 07:38
算法
自定义全局变量在uniapp的Vuex应用
一、自定义全局变量设置文件businessGlobeVaria
ble
.js@/store/modules/businessG
星月梦瑾
·
2024-08-30 07:38
uniapp
vue
前端
uniapp
uni-app
数据库概论第三章 SQL Server 代码
CREATEDATABASECourseSelection_assignment;USECourseSelection_assignment;CREATESCHEMA"S-T"AUTHORIZATIONdb_accessadmin;CREATETA
BLE
时叶Shey
·
2024-08-30 07:37
SQL
数据库概论
SQL
Server
学习stm32实现震动传感器点灯
创建sjake.c文件1.打开时钟(打开时钟是开启APB2里面的东西)RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA,ENA
BLE
);2.配置IO结构体GPIO_InitTypeDefshake_init
c语言是我哥
·
2024-08-30 07:36
学习
stm32
嵌入式硬件
Java-List分批多线程执行
个元素,我们可以创建一个工具类ListBatchExecutor,它包含一个静态方法executeInBatches,该方法接收一个列表、一个处理每个元素的函数以及一个自定义线程池,并利用Completa
ble
Future
ZHOU_VIP
·
2024-08-30 06:31
MAC
java
开发语言
解决uniapp视频层级太高的问题
刷新可拖动//配置公共方法exportdefault{data(){return{videoUrl:'https://***',weixin_movea
ble
_x:320,weixin_movea
ble
_y
云123321
·
2024-08-30 06:29
uniapp
uni-app
linux系统编程:数据库
----》内存:程序运行结束、掉电数据丢失文件----------------------》硬盘:程序运行结束、掉电数据不丢失数据库:专业存储数据、大量数据-----》硬盘sqlite相关的命令.ta
ble
s
ヾ(´∀`。ヾ)307
·
2024-08-30 04:49
数据库
Vue-cli创建单页面网页
安装npminstall-g@vue/cli创建项目vuecreate项目名选择预设环境使用键盘的上下键进行选择,enter键确定默认情况下是default(ba
ble
eslint)ba
ble
:下一代JavaScript
caiyiii
·
2024-08-30 03:55
Java笔试面试题AI答之线程(25)
1.继承`Thread`类2.实现`Runna
ble
`接口3.使用`ExecutorService`(线程池)总结146.简述AQS支持两种同步方式?
工程师老罗
·
2024-08-30 02:36
Java笔试面试题AI答
java
开发语言
上传文件太大 net::ERR_CONNECTION_ABORTED 500 (Internal Server Error) 连接失败错误
net::ERR_CONNECTION_ABORTED问题根因:上传文件太大,超过后台配置解决办法:后台application.yml中添加配置:spring:servlet:multipart:ena
ble
d
我的风格0.0
·
2024-08-30 02:05
spring
前端
spring
java
前端
Android实现自定义方向盘-5livedata实现
实现思路LiveData定义:在SteeringWheelView中定义一个Muta
ble
LiveData用来存储和管理当前指针角度。角度更新与通知:每当指针角度
榴月~
·
2024-08-30 02:34
android
android
nginx + lnmp架构部署
Nginx由俄罗斯的程序设计师IgorSysoev所开发,最初供俄国大型的入口网站及搜寻引擎Ram
ble
r使用。第一个公开版本0.1.0发布于2004年10月4日。
时迁10
·
2024-08-30 02:04
nginx
架构
运维
Flexi
ble
BI智能化质量管理系统:让制造更高效、精准
Flexi
ble
BI1.人工智能赋能的质量预测我们的系统使用先进的人工智能算法,对制造过程中的尺寸数据进行深度分析。与市场上现有的一些高端软件类似,但我们不局限于这些已有的框架。系统能预测潜在
三坐标CMM质量数据系统
·
2024-08-30 02:03
制造
大数据
人工智能
【大模型】大模型 CPU 推理之 llama.cpp
llama.cppllama.cpp安装llama.cppMemory/DiskRequirementsQuantization测试推理下载模型测试参考llama.cpp描述Themaingoalofllama.cppistoena
ble
LLMinferencewithminimalsetupandstate-of-the-artperformanceonawideva
szZack
·
2024-08-30 02:31
大语言模型
人工智能
大模型
人工智能
llama.cpp
二单元复盘
从本单元中我学到的最重要的理念精读对于某些单词要学会用英文来表达出它的意思要熟练掌握虚拟语气的用法和表达视听说对于听不清楚的句子要反复听做笔记加强听后复述的能力2,我在本片文章/音频/视频中学到的怦然心动的单词精读availa
ble
orsomethinggoaheadbyheartnotmuchofaeverynowandthenchokeupinthedistance
秦怡娟
·
2024-08-30 01:04
8.22
配置主数据库[root@msater_5~]#systemctlstopfilewalld[root@msater_5~]#setenforce0[root@msater_5~]#systemctldisa
ble
filewalld
Ma123456787654321
·
2024-08-30 00:52
adb
android
vue3+element-plus实现ta
ble
表格整列的拖拽
为防止原文章不见了将参考文章代码拷过来了(不好意思):这是参考文章的代码可直接复制粘贴运行import{nextTick,onMounted,reactive,ref}from"vue";importSorta
ble
from'sorta
ble
js
不恰香菜辣baga
·
2024-08-30 00:48
vue.js
elementui
11、引用
如伪代码:constint&r=dou
ble
d;非const引用只能指向同类型的对象。3、引用主要是用来作函数的参数
奥斯特洛司机
·
2024-08-30 00:43
并发基础知识之线程的基本概念
1.创建线程线程表示一条单独的执行流,它有自己的程序执行计数器,有自己的栈创建线程有两种方式:一种是继承Thread,另外一种是实现Runna
ble
接口。
秃头哥编程
·
2024-08-29 23:22
LeetCode 105. 从前序与中序遍历序列构造二叉树
3,9,20,15,7]中序遍历inorder=[9,3,15,20,7]返回如下的二叉树:3/\920/\157来源:力扣(LeetCode)链接:https://leetcode-cn.com/pro
ble
ms
陈彬_smile
·
2024-08-29 23:15
#
树
二叉树
leetcode
算法
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