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BLE(低功耗)蓝牙开发
字符串 Leetcode 557 反转字符串中的单词
来源:力扣(LeetCode)链接:https://leetcode-cn.com/pro
ble
ms/reve
禾木清清
·
2024-02-12 00:45
iOS 随机打乱一个数组的顺序 获得一个新的数组
第一种,算法计算-(NSMuta
ble
Array*)getRandomArrFrome:(NSArray*)arr{NSMuta
ble
Array*newArr=[NSMuta
ble
Arraynew];while
精神薇
·
2024-02-12 00:51
LeetCode 130. 被围绕的区域
题目链接https://leetcode-cn.com/pro
ble
ms/surrounded-regions/题目描述给定一个二维的矩阵,包含'X'和'O'(字母O)。
phantom34
·
2024-02-12 00:30
freertos 源码分析六 任务调度二
voidxPortSysTickHandler(void){portDISA
BLE
_INTERRUPTS();{if(xTaskIncrementTi
yvee
·
2024-02-11 23:13
嵌入式硬件
名诗我译(鲁米诗75)——A New Rule(一条新规2)
一条新规1(一百零四)Itistherulewithdrunkardstofallupononeanother,tofightandsquab
ble
andmaketumult.Theloverisworsethanthedrunka
臻念
·
2024-02-11 23:28
遍历下拉框的两种方式
for(vari=0;iindexTwo+1){$("select")[i].setAttribute('hidden',true);$("select")[i].setAttribute('disa
ble
d
taiguolaotu
·
2024-02-11 23:40
浅谈前端
java
数据库
前端
STL演讲比赛流程管理系统
speaker.h#pragmaonce//防止头文件重复包含#includeusingnamespacestd;//设计选手类classSpeaker{public:stringm_Name;//姓名dou
ble
m_Score
骑自行车带头盔
·
2024-02-11 23:03
50
c++
开发语言
C语言之变量和数据类型
变量和数据类型变量(Varia
ble
)数据类型1.整型(printf输出)2.sizeof获取占用字节数二、八、十六进制printf格式化输出(包括无符号输出格式)C语言中的符号位(正负)内存中整数的加法字符与字符串计算机处理的数据
一只爱吃萝卜的小兔子
·
2024-02-11 23:32
C语言
c语言
c++
开发语言
VSCode官方历史版本下载
VisualStudioCodeFrequentlyAskedQuestionsDownloadtypeURLWindowsx64Systeminstallerhttps://update.code.visualstudio.com/{version}/win32-x64/sta
ble
Windowsx64Userinstallerhttps
xjfyt
·
2024-02-11 23:30
vscode
ide
编辑器
iOS学习之(向上,向下,四舍五入)取整
ceil(x)返回不小于x的最小整数值(然后转换为dou
ble
型)。
鑫飞
·
2024-02-11 23:22
C语言程序设计--基本数据类型
由11个关键字组成,分别为:int,long,short,unsigned,char,float,dou
ble
,signed,_Bool,_Complex和_Imaginar
轻松学长
·
2024-02-11 22:57
C语言程序设计
c语言
嵌入式
ClickHouse亿点抽样展示
数据准备 数据源(点数据使用之前导入的数据120038310条,https://juejin.cn/post/6903100159484395534)CREATETA
BLE
default.points
polong
·
2024-02-11 22:30
中小企业学不会"宏颜获水"---该如何做传播
而彦宏总处理的非常淡定,临泼完冷静的说了一句:What'syourpro
ble
m?结合正在解读的《21世纪的定位》公关一章,今天针对公关以及内容营销方面做一次小小的探讨。
笔杆营
·
2024-02-11 22:34
clickhouse表引擎megerTree
clickhouse表引擎官方文档:https://clickhouse.tech/docs/zh/engines/ta
ble
-engines/mergetree-family/mergetree/#choosing-a-primary-key-that-differs-from-the-sorting-keyclickhouse
jeff-y
·
2024-02-11 22:23
数据库
数据库
mysql
lua weak表与gc
locala={}localb={}setmetata
ble
(a,b)--这个ta
ble
中的vaules就是weakb.
xiangjie256
·
2024-02-11 22:50
lua
Lua中的weak表——weak ta
ble
弱表(weakta
ble
)是一个很有意思的东西,像C++/Java等语言是没有的。
GJQI12
·
2024-02-11 22:20
lua学习
Lua Ta
ble
库
ta
ble
库由一些操作ta
ble
的辅助函数组成。他的主要作用之一是对Lua中array的大小给出一个合理的解释。另外还提供了一些从list中插入删除元素的函数,以及对array元素排序函数。
keep-learner
·
2024-02-11 22:20
lua
开发语言
Lua的weak ta
ble
Lua的weakta
ble
Lua的ta
ble
为ta
ble
的key和value提供了一种weak的机制,即如果当前的key或/和value不再被除此ta
ble
以外的任意对象引用时,将被标记为可被lua的垃圾回收器回收的对象
异次元的归来
·
2024-02-11 22:20
lua
Lua弱表Weak ta
ble
转载Lua弱表Weakta
ble
弱表(weakta
ble
)是一个很有意思的东西,像C++/Java等语言是没有的。
小米爱大饼
·
2024-02-11 22:49
Lua
弱表
结构体详解
结构的每个成员可以是不同类型的变量structtag{member-list;}varia
ble
-list;举个例子:如果要创建一个学生结构体:structStu{charname[20];//名字intage
Lonely Faith
·
2024-02-11 22:44
C语言学习
c语言
【LRU Cache实现】( List + hashta
ble
| template | LRU )
自动化测试template//重载提取操作符&object){usingnamespacestd::literals::string_literals;if(!object)//optional::operatorbool()隐式转换return(ocache;//cachedefaultcapacity==64intcounter{32};//读写操作总次数srand((unsigned)tim
XNB's Not a Beginner
·
2024-02-11 22:43
list
哈希算法
数据结构
缓存
模板方法模式
c++
算法
常用SQL语句
建立数据表CREATETA
BLE
ta
ble
_name(column1DATATYPE[NOTNULL][NOTNULLPRIMARYKEY],column2DATATYPE[NOTNULL],...)说明
xingkongmanbu
·
2024-02-11 22:40
sql
table
insert
null
语言
delete
centos7通过ipta
ble
s启用端口
第一步关闭默认防火墙centos7默认使用的防火墙是Firewall,所以先要把Firewall给关闭再使用ipta
ble
s关闭Firewall命令命令:systemctlstopfirewalld#关闭防火墙命令
丶夜灬夜丶
·
2024-02-11 21:04
Java 数据结构
工具包提供了强大的数据结构Java中的数据结构主要包括以下几种接口和类枚举(Enumeration)位集合(BitSet)向量(Vector)栈(Stack)字典(Dictionary)哈希表(Hashta
ble
贪点财好个色
·
2024-02-11 21:46
IOS OpenGL ES GPUImage 图像减淡混合 GPUImageLighten
Ble
ndFilter
目录一.简介二.效果演示三.源码下载四.猜你喜欢零基础OpenGL(ES)学习路线推荐:OpenGL(ES)学习目录>>OpenGLES基础零基础OpenGL(ES)学习路线推荐:OpenGL(ES)学习目录>>OpenGLES转场零基础OpenGL(ES)学习路线推荐:OpenGL(ES)学习目录>>OpenGLES特效零基础OpenGL(ES)学习路线推荐:OpenGL(ES)学习目录>>Op
猿说编程
·
2024-02-11 21:10
C++进阶——C++11(lambda表达式)
2、什么是lambda表达式lambda表达式的语法是这样的:[capture-list](parameters)muta
ble
->return-type{statement
淑女在哭泣
·
2024-02-11 21:32
c++
开发语言
【Vue3.0】- Composition API
CompsitionAPIVue.js3.0允许我们在编写组件的时候添加一个setup启动函数setup是CompositionAPI逻辑组织的入口Countis:{{state.count}},dou
ble
is
啦啦啦喽啰
·
2024-02-11 21:57
Ta
ble
au操作技能之二——从筛选器中移除 Null 值
如果我们加载的数据源存在没有数据的时候,那小伙伴们在作图操作筛选器时,可能会遇到这样的问题:筛选器中含有Null值,如下图:如果我们不想显示这个Null,可以有两种解决办法:创建集以从筛选器中排除Null值右键单击维度,然后选择“创建”>“集”重命名此集从列表中选择下面的选项中选择排除Null重新创建一个维度右键单击该维度,选择"复制"将原始字段拖到“筛选器”功能区并包括所有值将复制的字段放在“筛
小小韩_小小红
·
2024-02-11 20:29
使用kubeadm快速启用一个集群
]name=kubernetesbaseurl=https://mirrors.ustc.edu.cn/kubernetes/yum/repos/kubernetes-el7-$basearchena
ble
d
小陈运维
·
2024-02-11 20:50
快乘模板(long dou
ble
或者二进制)
思路一:a*b%p,当a*b可能会超过longlong范围,我们可以用longdou
ble
优化;a*b%p=a*b-(a*b/p)*p;时间复杂度为O(1),适合用于卡常数的题目。
yusen_123
·
2024-02-11 20:47
算法
[ABC304F] Shift Ta
ble
(莫比乌斯反演)
题目:https://www.luogu.com.cn/pro
ble
m/AT_abc304_f思路:容斥原理,莫比乌斯反演应该都可以,我用的是莫比乌斯反演。
yusen_123
·
2024-02-11 20:16
数论
算法
图论
c++
Lcms(莫比乌斯反演)
题目路径:https://www.luogu.com.cn/pro
ble
m/AT_agc038_c思路:代码:#define_CRT_SECURE_NO_WARNINGS#include#include
yusen_123
·
2024-02-11 20:16
数论
c++
算法
多项式乘法逆(p4238 NTT)
题目路径:https://www.luogu.com.cn/pro
ble
m/P4238思路:代码:#define_CRT_SECURE_NO_WARNINGS#include#include#include
yusen_123
·
2024-02-11 20:16
数论
算法
任意模数多项式乘法(洛谷4245)
#include#include#include#include#includeusingnamespacestd;#defineLLlonglongconstintN=5e5+10;constdou
ble
yusen_123
·
2024-02-11 20:16
数论
算法
c++
(2018-04-22.Python从Zero到One)六、排序与搜索__6.1.1冒泡排序
冒泡排序冒泡排序(英语:Bub
ble
Sort)是一种简单的排序算法。它重复地遍历要排序的数列,一次比较两个元素,如果他们的顺序错误就把他们交换过来。
lyh165
·
2024-02-11 20:29
SpringBoot框架启动流程和@SpringBootApplication注解
1.SpringBoot启动类1.1@SpringBootApplication注解主要由三个注解组成@ComponentScan@SpringBootConfiguration@Ena
ble
AutoConfiguration
新的起点新的开始_
·
2024-02-11 20:20
chrome浏览器禁用跨域功能
1.在电脑上新建一个目录,例如:C:\MyChromeDevUserData2.复制chrome的一个快捷方式,右键点击属性3.在属性页面中的目标输入框里加上–disa
ble
-web-security-
weixin_43160044
·
2024-02-11 20:11
前端
chrome
前端
Blog: 用element-ui表格实现可在表格内编辑,修改数据
完成':'编辑'}}exportdefault{data(){return{ta
ble
Data:[{date:'2016-05-02',name:'王小虎1',address:'上海市普陀区金沙江路1518
weixin_43160044
·
2024-02-11 20:10
element-ui
vue
vue.js
前端
解决jstack的报错:Una
ble
to open socket file
原文网址:解决jstack的报错:Una
ble
toopensocketfile_IT利刃出鞘的博客-CSDN博客简介说明本文介绍解决jstack的报错的方法,报错信息为:Una
ble
toopensocketfile
·
2024-02-11 20:22
java
AnimateDiff:一款强大的制作丝滑动画视频插件,轻松让你的图片动起来
得益于Sta
ble
Diffusion的开源,目前很多开发者推出了基于SD生成动画和视频的应用技术和扩展插件,在众多的技术中,AnimateDiff插件以“效果丝滑、稳定、无闪烁”等特性,成为目前Sta
ble
diffusion
程序员晓晓
·
2024-02-11 20:02
音视频
stable
diffusion
人工智能
AIGC
AI作画
AI绘画
Sta
ble
Diffusion【进阶篇】:破损照片的修复
大家好,我是程序员晓晓。大家有没有见过一些破损的照片呢,可能照片缺个角,可能照片中间破损了一条线,在AI之前,修复类似的破损照片可能是个技术活,但是现在使用AI工具,基本上几分钟就可以搞定。我们先来看一下破损照片修复的处理效果。原照片修复后的照片:我们可以在修复照片的同时对人物服装或者背景进行修改。修复后的照片下面我们来看一下具体的操作方式。这里以修复下面的这张破损照片为例。【第一步】Contro
程序员晓晓
·
2024-02-11 20:32
stable
diffusion
人工智能
PS教程
AI作画
AIGC
我用Sta
ble
Diffusion做电商!
我可以用sta
ble
diffusion来初步制作自己的展示商品!比如我这里要卖这个绿色的淑女裙。(左图)我尝试了直接拿真人穿的衣服抠出来生成,效果很
程序员晓晓
·
2024-02-11 20:31
stable
diffusion
人工智能
AI作画
AIGC
AI绘画
MySQL进阶45讲【19】幻读是什么,幻读会产生什么问题?
1前言在MySQL进阶45讲【3】事务隔离的恩恩怨怨这篇文章中,我们有提到过幻读的概念,为了更好地介绍幻读,我们先创建一个表,并添加一些数据,建表和初始化语句如下:CREATETA
BLE
`t`(`id`
吴名氏.
·
2024-02-11 20:30
《MySQL进阶45讲》
mysql
数据库
数据库开发
幻读
题目3180:蓝桥杯2023年第十四届省赛真题-棋盘=========及=====探讨输入输出对竞赛的影响
原理链接:题目3180:蓝桥杯2023年第十四届省赛真题-棋盘https://www.dotcpp.com/oj/pro
ble
m3180.html第一次尝试:packageDotcpp;importjava.util.Scanner
Wzideng
·
2024-02-11 20:29
java
算法
翻转课堂作业-问题及思路
作业内容:1、在学习手帐第6页,写下一个自己正面临的、真实发生的问题(pro
ble
m)。2、并写下你对这个问题的思路,可能的解决方案。3、拍照上传,完成打卡。
zrn
·
2024-02-11 19:49
2.4C语言 面对多行数据输入时,千万别忽略换行符...
#includeintmain(){intn;scanf("%d\n",&n);for(inti=0;i
bleheight;scanf("%c%lf\n",&str
lanssssss
·
2024-02-11 19:49
算法
1.5C语言 双曲正弦函数(*) 优化麦克劳林公式
一.传统算法#include#includeintjc(intx);intmain(){dou
ble
x,eps,y=0.0;scanf("%lf%lf",&x,&eps);intde=1,i=1;dou
ble
item
lanssssss
·
2024-02-11 19:19
算法
c语言的各类输出函数(带完善更新)
printfdou
ble
x;x=218.82631;printf("%-6.2e\n",x);printf(“%-6.2e\n”,x);使用printf函数以指定的格式输出x的值。"
发生了什么Bug
·
2024-02-11 19:16
c语言基础&实用技巧
c语言
Android中aar文件制作与使用
2.打包aar文件选中AndroidStudio的右侧的Gradle,然后选中你要制作aar的model文件,然后点击Tasks---build---assem
ble
,然后双
努力生活的西鱼
·
2024-02-11 19:21
React Native开发iOS实战录
ruby3在macOS上编译失败importofmodule‘glog.glog.log_severity’appearswithinnamespace‘google’yarn网络问题pod安装失败una
ble
toopensettingsfile
北极象
·
2024-02-11 19:42
#
iOS
移动开发实战
react
native
ios
react.js
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