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小程序BLE
C++中绝对值的用法
下面是一些示例,展示了如何在四则运算中使用std::fabs函数:示例1:加法#include#includeintmain(){dou
ble
a=-10.5;dou
ble
b=5.3;dou
ble
result
MAMA6681
·
2024-09-02 12:49
c++
开发语言
WordPress 后台缓存插件:WP Admin Cache提高缓存页面
使用WordPress建站会安装一些静态缓存插件,比如:WPRocket、CacheEna
ble
r、CometCache、W3TotalCache、WPSuperCache、WPFastestCache
818源码资源站
·
2024-09-02 11:19
源码下载00818.cn
源码下载818资源站
缓存
需要多次执行sql语句时,使用预编译
1、Statement为每一条Sql语句生成执行计划,如果要执行两条sql语句selectcolumefromta
ble
wherecolume=1;selectcolumefromta
ble
wherecolume
lbmydream
·
2024-09-02 11:46
java
java
web
sql
java
openGauss之系统隐藏列
一.前言openGauss在建表时,系统会自动插入ta
ble
oid,cmax,xmax,cmin,xmin,ctid六个系统隐藏列,在select*的时候也会自动隐藏这6个系统隐藏列,如下所示:本文主要走读代码了解
王飞活
·
2024-09-02 10:43
openGuass
openGauss
系统隐藏列
xmin
xmax
SQLite 创建表:一场数据库里的“造物运动”
一、创建表的“魔法咒语”在SQLite这个“魔法世界”里,创建表其实就像念一句“魔法咒语”:CREATETA
BLE
ta
ble
_name(column1datatype,column2datatype,column3datatyp
软考鸭
·
2024-09-02 10:40
sqlite
sqlite
数据库
Una
ble
to boot the iOS simulator?
open-aSimulatoritreportUna
ble
toboottheiOSsimulatorerror>expostart--iosStartingprojectat/Users/binary/
0010000100
·
2024-09-02 10:10
环境配置
ios
macos
过好现在,憧憬未来
每天一有时间就来三诺
小程序
写点东西,这也早已成为了我的一个生活习惯。习惯成自然,不经意中习惯会积累点滴某一天给我一个惊喜。我不知道这会是一个什么样的惊喜,只是当下在不停的往
小程序
里面保存一些文字。
洛思梅
·
2024-09-02 10:16
C#Math计算的几个常用方法
returnMath.Abs(num).ToString();}2、返回输入数字的平方运算//////【2】返回输入数字的平方运算(可扩展为立方或者其他自身运算)/////////publicstaticdou
ble
Squa
SheldonK
·
2024-09-02 10:38
c#
开发语言
代码随想录八股训练营第二十三天| C++
1.1.3.注意事项1.2.全局变量1.2.1.特点1.2.2.声明与定义1.2.3.注意事项1.3.局部变量1.3.1特点1.3.2.注意事项1.4.三者的区别1.4.1.全局变量(GlobalVaria
ble
s
朝闻dao
·
2024-09-02 09:06
c++
逆水行舟,不进则退
首先,noticea
ble
nerviness。紧张偶尔会有,但都controlla
ble
,毕竟按我的马龄,也算是个老司机,可被人看出,也是头一遭。原因嘛,也不言而喻。
舒乔终身成长
·
2024-09-02 09:42
ubuntu环境下实现ROS 2 与 Arduino 通信
spm=1001.2014.3001.5501的进一步拓展ROS2与Arduino通信指南准备工作确保已安装ROS2(本指南基于ROS2Hum
ble
)确保已安装ArduinoIDE并能正常使用安装必要的
28BoundlessHope
·
2024-09-02 08:28
isaac
sim数字孪生
ubuntu
单片机
Easyui Datagrid实现行操作
EasyuiDatagrid实现行操作效果分析实现此功能需要实现2点1、首列的内容全部需要渲染成申请开票2、点击申请开票可以获获取到指定的行内容,在执行后续操作实现方案1、首行格式化,在ta
ble
的th
天农学子
·
2024-09-02 08:57
easyui
前端
javascript
小程序
棋牌开发一个多少钱啊|棋牌开发需要多少钱
确定APP的价格将基于系统规模和性能。一般的科技公司会根据所需求计算工时和开发人员,最终得出整个项目报价。由于技术市场过度饱和,也因此市场上出现了许多现成的APP模版。因此,有些人会购买现有的APP模板,将会更加便宜,毕竟不必考虑开发费用,除非您需要定制自己的需求,只要是开发人员有十几个人的团队,开发能力和经验又比较丰富的,是选择小一些的开发公司还是规模大点的公司,其实并无差别。甚至小公司在制度、
红匣子实力推荐
·
2024-09-02 08:27
Mysql索引
showvaria
ble
slike'innodb_page_size';值/102
陈年小趴菜
·
2024-09-02 08:26
mysql
mysql
数据库
笔记
原项目引入springcloud报错:org.springframework.boot.context.properties.ConfigurationBeanFactoryMetadata
D:\JAVAWEB\jdk1.8\bin\java.exe-XX:TieredStopAtLevel=1-noverify-Dspring.output.ansi.ena
ble
d=always-javaagent
群子7559
·
2024-09-02 07:52
springcloud整合
java
spring
cloud
spring
boot
CMakeLists 模板
项目目录结构project_root├──CMakeLists.txt├──include│├──pro
ble
m.hpp│├──ceres_costfunctor.hpp│└──common.hpp├─
wq_151
·
2024-09-02 07:19
问题解决办法
计算机通识
c++
linux
微信
小程序
利用canva进行大图片压缩
找了很多方法没找到合适的图片压缩第三方库,有没有推荐的微信
小程序
压缩图片的第三方库呀(有的话,互帮互助,感谢)我自己写了个简易的压缩方法,其实就是等比例的缩小图片,并把png转为jpg,毕竟png的颜色太多
kaka-333
·
2024-09-02 05:09
javascript
前端
开发语言
微信小程序
小程序
12代处理器怎么关闭小核(技嘉主板) Win11 12代CUP 关闭小核【i7-12700 十二核心 二十线程(实际为8核16线程 + 4小核)】
代处理器怎么关闭小核(技嘉主板)F2进入BIOS--Tweaker--AdvancedCPUConfiguration--CPUCoresEnablingMode--No.ofCPUE-CoresEna
ble
d
tanzongbiao
·
2024-09-02 05:08
关闭小核
12代CUP
i7
结构体(2)
能力范围内都会一一回答我们先直接上代码看看结构体的另一种用法1.匿名结构体define_CRT_SECURE_NO_WARNINGS#include//第一个structstruct{charc;inti;dou
ble
d
Starry_hello world
·
2024-09-02 05:36
C语言
c语言
有问必答
笔记
微信
小程序
跳转
/store/index'})
小程序
跳转wx.navigateToMiniPro
tanzongbiao
·
2024-09-02 05:35
微信小程序
小程序
<el-ta
ble
>组件show-summary合计行合并方法
elementta
ble
组件中通过show-summary生成的合并行无法通过span-method方式实现合并行;watch:{ ta
ble
Data:{ immediate:true,
weixin_52137539
·
2024-09-02 05:34
前端
javascript
vue.js
element ui表格<el-ta
ble
> 合并单元格
新增动物{{scope.row.date}}-->添加exportdefault{components:{},data(){return{ta
ble
Data:[],spanProps:['leftKey
北乎下周
·
2024-09-02 05:04
el-ta
ble
合并多行相同列
ta
ble
Date:ta
ble
表格的数据constpreR
你是玛卡巴卡嘛
·
2024-09-02 05:34
vue.js
javascript
ecmascript
js合并ta
ble
表格中一列合并相同内容的单元格
Titleta
ble
,ta
ble
trth,ta
ble
trtd{border:1pxsolid#0094ff;}ta
ble
{width:200px;min-height:25px;line-height:
liush0108
·
2024-09-02 05:04
js
题解 力扣 LeetCode 206 反转链表 C/C++ 三种思路
题目传送门:206.反转链表-力扣(LeetCode)https://leetcode.cn/pro
ble
ms/reverse-linked-list/description/可以用迭代和递归来做,每种又可以具体写成不同样子
qwq_ovo_pwp
·
2024-09-02 04:03
c++
c语言
leetcode
链表
数据结构
算法
el-ta
ble
相同数据行单元格合并
el-ta
ble
列表相同内容合并背景实现步骤1.绘制el-ta
ble
2.编写合并方法2.1计算合并的行号2.2计算合并行号数组**indexArray**。
problemRecord
·
2024-09-02 04:03
elementui
vue.js
element 时间日期组件 场景 : 选取开始&&结束时间时限制时间区间 选取结束时间如果是当天则取当天默认的时分秒
pickerOptions:{disa
ble
dDate:(time)=>{//如果函数处理比较简单,可以直接在这里写逻辑方法//returntime.getTime()>Date.now()-8.64e7returntime.getTime
小鱼-00
·
2024-09-02 04:02
vue.js
前端
javascript
elementui
element-plus 对时间条件限制--默认时分秒当前日期+5分钟
constexpireTimeChange=(value)=>{if(value){ruleForm.expireTime=newDate(value).getTime();}};constdisa
ble
dDateFun
老胡说前端
·
2024-09-02 04:02
vue.js
elementui
javascript
阿里云的记忆播放与进度条不允许拖动disa
ble
Seek需求同时存在
阿里云的记忆播放与进度条不允许拖动disa
ble
Seek需求同时存在需要阿里云的记忆播放的源码修改1.手动关闭进度条禁用方法2.player.seek先跳转到指定的位置3.手动开启进度条禁用添加延时100100
m0_52611940
·
2024-09-02 04:32
android
2018-10-25
回顾:DML数据库操纵语言一、使用命令建立数据库或使用鼠标右键新建数据库Createdatabase数据库的名字二、使用命令建表或是右键建表Use数据库Createta
ble
表名(列名数据类型(可以添加主外键的关系或是唯一键
By丶久绊成影
·
2024-09-02 04:21
Unit5复盘
Animalsarehuman'sfriends,Weshouldlivetogetherpeacefullywiththem视听说:Weshouldcareabouttheoldandcareabouttheagingpro
ble
m2
张齐
·
2024-09-02 03:13
Dubbo与Netty
CodecCodecSupportAbstractCodecTransportCodecCodecAdapterDispacherChannelHandlersDispatcherAllDispatcherAllChannelHandlerChannelEventRunna
ble
WrappedChannelHandlerChannelHandlerChannelHandlerAdapterChan
蹩脚的小三
·
2024-09-02 03:34
CF C. Candy Store
原题链接:Pro
ble
m-C-Codeforces题意:多测,先给出n代表n种糖果,每种糖果分别给出数量和单价,可以将糖果平均分成若干袋,每一袋的的价格是一袋糖果数量×单价,对于每一种糖果都求出一袋的价格
Jiu-yuan
·
2024-09-02 03:54
算法
vim 简易配置
setnocompati
ble
setbackspace=2"--------------display-----------------setnu"行号syntaxon"语法高亮setruler"显示当前行和列
raoxu_1154492168
·
2024-09-02 03:53
vim
前端
编辑器
计算机专业软件工程毕业设计做什么简单
软件工程毕业设计选择简单又实用的项目可以**管理系统的设计与开发、基于算法的设计(有些骗难度)、微信
小程序
的开发等**。具体选择哪些项目,还要根据个人兴趣和所学知识来决定。以下是一些建议:1.
李哥讲程序开发
·
2024-09-02 03:51
软件工程
课程设计
毕业设计
spring
boot
java
vue
Ambari安装部署教程
环境准备以下操作使用root用户执行:1.关闭防火墙chkconfigipta
ble
soffserviceipta
ble
sstopchkconfig--listipta
ble
s2.关闭SElinuxvi
Aries_Chen_CSDN
·
2024-09-02 02:50
大数据
hadoop
ambari
FFmpeg源码:av_rescale_rnd、av_rescale_q_rnd、av_rescale_q、av_add_sta
ble
函数分析
一、av_rescale_rnd函数(一)av_rescale_rnd函数的声明av_rescale_rnd函数声明在FFmpeg源码(本文演示用的FFmpeg源码版本为7.0.1)的头文件libavutil/mathematics.h中:/***Roundingmethods.*/enumAVRounding{AV_ROUND_ZERO=0,///2**av_rescale_rnd(AV_NOP
cuijiecheng2018
·
2024-09-02 02:19
FFmpeg源码分析
ffmpeg
JAVA程序调用PLSQL里边写的小函数
在procedure里边创建函数函数如下:createorreplaceprocedureta
ble
CT(sqlStrinvarchar2)is--sqlStr1varchar2(80);begin--
陶二先生
·
2024-09-02 02:49
PLSQL
JAVA
PLSQL
函数
JAVA学习-练习试用Java实现“数据流的中位数”
dou
ble
findMedian()-返回目前所有元素的中位数。示例:addNum(1)addNum(2)findMedian()->
守护者170
·
2024-09-02 02:47
java学习
学习
java
Unity3D-启动unity事件,切换平台监听
InitializeOnLoad],添加这个标示,标示在unity启动的时候会执行这个脚本unity官方给的解释是:RunningEditorScriptCodeonLaunchSometimesitisusefultobea
ble
torunsomeeditorscriptcodeinapr
米酒老花生
·
2024-09-02 01:14
unity3d
Ansi
ble
自动化运维实战:打造高效、可靠的系统管理方案!
Ansi
ble
是一个在自动化运维领域广泛使用的工具,它基于Python开发,能够实现批量系统配置、程序部署和运行命令等功能。
疾风终究没有归途
·
2024-09-02 01:39
运维
自动化运维
配置管理
应用部署
【Qt报错】This application failed to start because it could not find or load the Qtplatform plugin
ThisapplicationfailedtostartbecauseitcouldnotfindorloadtheQtplatformplugin"windows’in"”Reinstallingtheapplicationmayfixthispro
ble
m
爱吃小熊饼干、
·
2024-09-02 00:35
C++
c++
qt
2.3.6 返回用户空间
InterruptPipeline系列文章大纲-CSDN博客2.3el0_irq2.3.1el0_irq代码框架2.3.2kernel_entry0与kernel_exit02.3.3el0_irq_naked与ena
ble
_da_f2.3.4trace_hardirqs_off
aspirestro三水哥
·
2024-09-02 00:03
Interrupt
Pipeline
linux
运维
服务器
How can I change from OpenAI to ChatOpenAI in langchain and Flask?
问题背景:Thisisanimplementationbasedonlangchainandflaskandreferstoanimplementationtobea
ble
tostreamresponsesfromtheOpenAIserverinlangchaintoapagewithjavascript
营赢盈英
·
2024-09-01 23:01
AI
langchain
python
flask
openai
api
py-langchain
能否向右位移?且偏移大小是-1?
这个问题来自于ffmpegg安装时编译器的报错:E:\software\msys2\tmp\ccgdnG5s.s:Assem
ble
rmessages:CClibavformat/alp.oE:\software
echo_hello1
·
2024-09-01 23:57
linux
ffmpeg
Dockerfile样例
[ec2-user@ip-10-0-0-8simpleHttp]$catDockerfileFROMgolang:alpine#Setnecessaryenvironmetvaria
ble
sneededforourimageENVGO111MODULE
andyliuzhii
·
2024-09-01 22:26
云计算
云计算
实数四舍五入后的相加运算
#includeintmain(){dou
ble
a,b;dou
ble
c,d;scanf("%lf,%lf",&a,&b);c=(int)(a*100+0.5)/100.0;d=(int)(b*100+0.5
了了
·
2024-09-01 21:18
c++
c语言
开发语言
关于
小程序
的常用配置
全局配置在app.json中进行配置pages项pages里是页面路径列表(默认展示的是第一个)"pages":["pages/index/index","pages/list/list","pages/logs/logs"],window项用来配置对应的窗口信息{"window":{"navigationBarBackgroundColor":"#FFFFFF",//顶部导航的背景色"navig
Sylvia_703
·
2024-09-01 21:16
微信小程序
微信小程序
第三天 4 Sum
哈哈,继续在前两天的基础之上,4Sum问题https://leetcode-cn.com/pro
ble
ms/4sum/description/对于这种列表的题目,继续要排个序,开始想过类似分治的方法,但好像路走不通
业余马拉松选手
·
2024-09-01 20:14
【论文阅读】QUEEN: Query Unlearning against Model Extraction(2024)
摘要Modelextractionattacks(模型提取攻击)currentlyposeanon-negligi
ble
threat(不可忽视的威胁)tothesecurity(安全性)andprivacy
Bosenya12
·
2024-09-01 20:45
科研学习
模型窃取
论文阅读
提取攻击
模型安全
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