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低功耗蓝牙(BLE)
读书系列之——太空之眼(THE HUB
BLE
COSMOS)
比如这本:THEHUB
BLE
COSMOS(太空之眼-哈勃望远镜25年太空探索全记录)。相较于历史、
Oasis_chen
·
2024-08-22 16:55
【数据库】数据库学习(MySQL,Oracle,PostgreSql)
SELECT-从数据库表中获取数据UPDATE-更新数据库表中的数据DELETE-从数据库表中删除数据INSERTINTO-向数据库表中插入数据字句与附加内容SELECTlist1,list2FROMta
ble
诩_
·
2024-08-22 15:27
数据库
数据库
学习
mysql
web前端开发篇(6)---flex布局详解
1flex布局原理flex是flexi
ble
Box的缩写,意为“弹性布局”,用来为盒状模型提供最大的灵活性,任何一个容器都可以指定为flex布局。
布呐呐na
·
2024-08-22 15:56
前端
css
javascript
第二单元复盘
Part11,从本单元中我学到的最重要的理念注意安全情绪表达更重要2,我在本片文章/音频/视频中学到的怦然心动的单词(精读和视听说分别总结)精读:rural,vulnera
ble
,urban,era,private
武文婧
·
2024-08-22 14:07
开源一个Flutter版WanAndroid客户端
JsonConvert的,可以直接使用JsonConvert里面的方法,完美.5.5FlutterScrollView(滚动视图)ScrollView是一个带有滚动的视图组件,它本身由三部分组成Scrolla
ble
2301_79098336
·
2024-08-22 14:52
程序员
开源
flutter
Oracle数据库中 COMMENT ON 语句
语法对于表和列,COMMENTON语句的基本语法如下:为表添加或修改注释:COMMENTONTA
BLE
ta
ble
_nameIS'comment_text'
zxrhhm
·
2024-08-22 14:21
oracle
数据库
log.isDebugEna
ble
d()的作用
代码在项目中经常会看到这样的代码:if(log.isDebugEna
ble
d()){ log.debug(message);}源码isDebugEna
ble
d()的源码:publicbooleanisDebugEna
ble
d
AaronJonah
·
2024-08-22 14:49
java
java
log4j
数组(二)———数组的排序算法①
复杂度分析实现示例(Java):插入排序基本步骤:复杂度分析实现示例(Java):希尔排序基本步骤:复杂度分析实现示例(Java):归并排序基本步骤:复杂度分析实现示例(Java):冒泡排序定义:冒泡排序(Bub
ble
Sort
啵啵薯条
·
2024-08-22 13:17
算法与数据结构
排序算法
算法
数据结构
MySQL对JSON数据类型的处理
以下是一些常用的处理JSON数据的函数和操作:1.创建JSON列CREATETA
BLE
my_ta
ble
(idINTAUTO_INCREMENTPRIMARYKEY,json_dataJSON);2.
cesske
·
2024-08-22 13:45
mysql
Java | 实现一个 ORM 真的很简单
实现一个ORM到底多简单Ta
ble
ofContents实现一个ORM到底多简单原理ORM实现1.通过注解来将JavaBean和数据库字段关联2.反射工具类3.简单的model示例4.注解解析5.数据库操作
双鬼带单
·
2024-08-22 12:59
【Vue】el-autocomplete禁用时仍会触发下拉的问题
文章目录问题解决问题el-autocomplete禁用时,点击后仍会触发下拉,导致出现bug解决试了一下官方disa
ble
d属性、@focus、@click.stop均不起作用,最后无奈只能在查询方法那里做处理
益达是我
·
2024-08-22 11:01
vue
vue.js
javascript
Datawhale AI夏令营第四期魔搭- AIGC文生图方向 task03笔记
如何学习八图ai模型kolors1,Kolors是由快手公司开源的第三代文本到图像生成模型,基于Sta
ble
Diffusion框架开发。它支持中英文输入,特别在中文内容的理解和生成上表现出色。
汪贤阳
·
2024-08-22 11:30
人工智能
AIGC
笔记
HBase入门教程
1.1Hbase概念术语1、行键RowKey:主键是用来检索记录的主键,访问hbaseta
ble
中的行。
xmvip01
·
2024-08-22 10:08
(数据中心版本)VXLAN详解:概念、架构、原理、搭建过程、常用命令与实战案例
一、VXLAN概述1.1VXLAN的定义VXLAN(VirtualExtensi
ble
LAN,虚拟可扩展局域网)是一种网络虚拟化技术,通过在现有IP网络上创建虚拟网络,使数据中心可以实现大规模的网络隔离和扩展
CloudJourney
·
2024-08-22 10:55
架构
【postgresql初级使用】updata
ble
view 可修改的视图,以及视图数据致性的控制,完全分离数据报表业务与数据的维护操作部署架构尝试
postgresql使用入门基础手写数据库toadb并发编程个人主页:我的主页管理社区:开源数据库座右铭:天行健,君子以自强不息;地势坤,君子以厚德载物.文章目录可修改的视图概述可修改视图介绍可修改视图使用updata
ble
view
韩楚风
·
2024-08-22 10:24
postgresql
数据库
sql
database
大数据
双向链表如何实现插入
datatypedata;//数据域structnode*next;//指向下一个节点的指针structnode*prior;//指向前一个人节点的指针}node_t,*node_p;typedefstructdou
ble
linklist
weixin_63207763
·
2024-08-22 09:52
链表
数据结构
Python | TypeError: ‘NoneType’ object is not itera
ble
Python|TypeError:‘NoneType’objectisnotitera
ble
在Python编程中,TypeError:'NoneType'objectisnotitera
ble
是一个常见的错误
二川bro
·
2024-08-22 09:18
优化
bug集合
python
python
开发语言
Lua自己实现string.split功能
string.len(str)--长度localstart=1whilestart<=ndolocali=string.find(str,d,start)--find'next'0ifi==nilthenta
ble
.insert
heyuchang666
·
2024-08-22 08:14
Lua开发
Lua语言开发
string.split
Unit5复盘
Part11,从本单元中我学到的最重要的理念(精读和视听说分别总结)精读:Animalsaresuchagreea
ble
friends,weshouldpeacewithanimals.Animalshavepeoplecan'timaginesintelligence
人文2班赵薇
·
2024-08-22 08:27
Una
ble
to evaluate expression using this context
Una
ble
toevaluateexpressionusingthiscontextJAVA语言使用Xpath解析XML格式字符串publicStringxmlText(Stringxml){Documentdoc
java丶小虫
·
2024-08-22 08:43
java
Xpath
XML
C++匿名函数lamba简介
二、基本语法[捕获列表](参数列表)muta
ble
(可选)异常属性->返回类型(可省略){//函数体}返回类型可自动推导
不适合写代码的程序员
·
2024-08-22 07:38
c++
匿名函数
lambda
C++11
新特性
阿里云计算巢:开启全新云服务时代,助力企业飞速成长
其中,计算巢的Sta
ble
DiffusionWebUI和aiacctorch服务能够大幅度提升PyTorch的推理性能,为AI应用提供强大的加速能力。
阿里云最新优惠和活动汇总
·
2024-08-22 07:47
C++-----计算三角形面积
#include#includeusingnamespacestd;classPoint{//坐标点类public:constdou
ble
x,y;Point(dou
ble
x=0.0,dou
ble
y=0.0
navi’s electronic
·
2024-08-22 07:04
C++
c++
算法
开发语言
代码随想录算法训练营day6|哈希表part1
第二种就是要求ta
ble
Size大于dataSize的时候,哈希表可以将冲突
翼1001
·
2024-08-22 06:03
散列表
哈希算法
数据结构
goland控制台显示重叠问题解决方案
解决方法:PleasenavigatetoHelp|FindAction,typeRegistry...,findoptionanddisa
ble
it.Doesithelp?
keep_top
·
2024-08-22 06:31
go语言
go
力扣面试经典算法150题:跳跃游戏
题目链接:https://leetcode.cn/pro
ble
ms/jump-game/description/?
明月望秋思
·
2024-08-22 05:54
学习
Java
算法
算法
leetcode
面试
java
Apache Paimon:实时湖仓架构构建工具
ApachePaimon:实时湖仓架构构建工具paimonApachePaimonisalakeformatthatena
ble
sbuildingaRealtimeLakehouseArchitecturewithFlinkandSparkforbothstreamingandbatchoperations
乔如黎
·
2024-08-22 03:15
python之os.walk()
followlinks=False)输入参数:top:所需遍历目录的路径topdown:True时,则优先遍历top目录,否则优先遍历top的子目录(默认为True)onerror:需要一个calla
ble
xwq-csdn
·
2024-08-22 03:43
python
Python
os
walk
复盘一单元
(精读和视听说分别总结)精读:把握文章的整体结构视听说:听力完成后要做听后复述2,我在本片文章/音频/视频中学到的怦然心动的单词(精读和视听说分别总结)1)精读:drive干劲ease减轻invisi
ble
教育学一班杨朔34
·
2024-08-22 03:34
探索实时湖仓架构的新星:Apache Paimon
探索实时湖仓架构的新星:ApachePaimonpaimonApachePaimonisalakeformatthatena
ble
sbuildingaRealtimeLakehouseArchitecturewithFlinkandSparkforbothstreamingandbatchoperations
幸愉旎Jasper
·
2024-08-22 03:39
MySQL自增主键
1在创建表时指定自增主键:CREATETA
BLE
表名(列名数据类型AUTO_INCREMENTPRIMARYKEY,列名数据类型,...)
中台小A
·
2024-08-22 02:07
mysql
mysql
sql
数据库
python 面试指南
Ta
ble
ofContentsPython语言特性1Python的函数参数传递2Python中的元类(metaclass)3@staticmethod和@classmethod4类变量和实例变量5Python
墨痕_777
·
2024-08-22 02:32
python
Linux~MySQL数据库具体操作
一、数据库的字符集编码设置(一)查看数据库默认的字符集MariaDB[(none)]>showvaria
ble
slike'%character%';+--------------------------
linuxMinx
·
2024-08-22 01:30
数据库
64. 最小路径和(python3)
题目:https://leetcode-cn.com/pro
ble
ms/minimum-path-sum/给定一个包含非负整数的mxn网格grid,请找出一条从左上角到右下角的路径,使得路径上的数字总和为最小
keep moving 123
·
2024-08-22 01:29
leetcode
medium
DP
leetcode
Python 核心概念解析:可迭代对象、迭代器、生成器和装饰器
在Python编程世界中,有四个非常核心的概念:可迭代对象(Itera
ble
)、迭代器(Iterator)、生成器(Generator)和装饰器(Decorator)。
书生有只狗᭄゛ঞ
·
2024-08-22 01:58
python爬虫
python
开发语言
log4j与logback(简介,配置项解释,配置示例,使用说明)
文章目录共性配置项含义指定配置文件常用实践注意事项log.isDebugEna
ble
d()开发时使用带作者名的日志代码合并到master之前检查日志附录logj.properties写法logback.xml
rookie19_
·
2024-08-22 00:22
java
log4j
logback
Sql多表查询大全
*FROMTa
ble
AAINNERJOINTa
ble
BBONA.id=B.id;```###2.左连接(LEFTJOIN)左连接返回左表中的所有记录,即使右表中没有匹配的记录
梨园猫
·
2024-08-21 23:50
sql
数据库
青少年编程
python
java
AI绘画Sta
ble
Diffusion(SD)常用插件
常用的AI绘画Sta
ble
Diffusion(SD)软件插件有很多,可以帮助用户提升创作效率和作品质量。以下是一些常见的插件和扩展:1.
梨园猫
·
2024-08-21 23:49
AI作画
人工智能
青少年编程
Java中的单例模式
在Java中,实现线程安全的单例模式通常有几种方法:懒汉式(LazyInitialization)双重检查锁定(Dou
ble
-CheckedLocking):这是一种常见的实现方式,通过双重检查
士伟丷
·
2024-08-21 23:49
设计模式
java
单例模式
c#相关基础知识
的正常数据的传输ref:对参数的指向是参数本身的地址,而不是数据的副本,所以可以对数据进行直接操作out:绑定控件,控件传输值赋值给类中的内部类winform:窗体的关闭与否:privatevoidLa
ble
1
起鸣
·
2024-08-21 23:46
c#
使用ViewPager2切换Fragment后返回闪退
(一)具体报错androidx.fragment.app.Fragment$InstantiationException:Una
ble
toinstantiatefragmentcom.yl.newtaobaounion.ui.fragment.HomeViewPagerFragment
le161616
·
2024-08-21 22:38
Android调试报错记录
android
kotlin
学会辨识「漏洞炒作」你就比别人强!
昨天,最受欢迎的开源轻量级Java框架Spring被曝存在高危的RCE(远程控制设备)零日漏洞,北京大学计算中心、外媒praetorian、
ble
epingcomputer等站点对该漏洞进行了报道。
强哥叨逼叨
·
2024-08-21 22:49
1-38 Consistent Noun Stress in Changing Verb Tenses
Whenyoudotheexercisethefirsttime,gothroughstressingonlythenounsDogseatbones.Practicethisuntilyouarequitecomforta
ble
withtheintonation.Thepronunciationandwordconnectionsareontheright
柚子葉
·
2024-08-21 21:33
opencv日常学习之approxPolyDP函数和boundingRect函数说明
approxPolyDP来对指定的点集进行逼近,其逼近的精度是可设置的对应的函数为:voidapproxPolyDP(InputArraycurve,OutputArrayapproxCurve,dou
ble
epsilon
adsdriver
·
2024-08-21 20:55
Opencv学习点滴
opencv
日常学习
approxPoly
boundingRe
Mojo dict字典详解及接口相关说明
关键元素必须实现KeyElement该特征,其中包括Mova
ble
、Hasha
ble
和EqualityComp
启航学途
·
2024-08-21 20:24
Mojo
mojo
Mojo
dict字典详解
Mojo
dict接口相关说明
Mojo入门
mojo教程
mojo基础教程
mojo入门教程
Android系统和开发--安全性和权限管理 SELinux 策略 安全架构
/setenforce0adbrootsufastbootoemat-unlock-vbootadbdisa
ble
-verityAndroid权限Android系统是基于Linux内核构建的,因此它继承了
小黄人软件
·
2024-08-21 19:23
android
安全架构
安全
Vue项目-Ta
ble
添加Form表单校验
一、HTML新增表格数据{{row.name}}{{row.age}}{{row.sex}}删除任务信息生成二、JS//------------------->-------------------import{ref,reactive,onMounted,nextTick}from"vue";import{ElMessage}from"element-plus";//--------------
呆呆的小草
·
2024-08-21 19:21
Vue
vue.js
elementui
javascript
【转】-Java并发编程:阻塞队列
Java并发编程:阻塞队列该博客转载自**Matrix海子的Java并发编程:阻塞队列**Java并发编程:阻塞队列在前面几篇文章中,我们讨论了同步容器(Hashta
ble
、Vector),也讨论了并发容器
booleandev
·
2024-08-21 19:19
JUC
Java
转载
实战Java高并发程序设计笔记第三章
重入锁可以完全替代synchronized,使用java.util.concurrent.locks.ReentrantLock类来实现publicclassReenterLockimplementsRunna
ble
MisterDo
·
2024-08-21 18:51
linux基础命令(一)
Linux基础命令1、设置主机名1.1、hostname查看主机名[root@ansi
ble
~]#cat/etc/hostnameansi
ble
或[root@ansi
ble
~]#hostnameansi
ble
运维搬运工
·
2024-03-29 08:12
linux
linux
服务器
centos
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