E-COM-NET
首页
在线工具
Layui镜像站
SUI文档
联系我们
推荐频道
Java
PHP
C++
C
C#
Python
Ruby
go语言
Scala
Servlet
Vue
MySQL
NoSQL
Redis
CSS
Oracle
SQL Server
DB2
HBase
Http
HTML5
Spring
Ajax
Jquery
JavaScript
Json
XML
NodeJs
mybatis
Hibernate
算法
设计模式
shell
数据结构
大数据
JS
消息中间件
正则表达式
Tomcat
SQL
Nginx
Shiro
Maven
Linux
BLE错误码
Java算法之冒泡排序(Bub
ble
Sort)
代码实现以下是使用Java实现冒泡排序的示例代码:publicclassBub
ble
Sort{publ
持续输出...
·
2024-09-01 10:07
#
Java
算法
算法
java
springboot中的@Cachea
ble
缓存来增加手动分页的查询效率 为什么用手动分页业务用的jpa jpa中查了下没有数据库中间件
可以使用Spring提供的缓存抽象(如@Cachea
ble
、@CacheEvict等注解),或者使用第三方缓存库(如Redis)来实现缓存功能。优化正则表达
烟雨国度
·
2024-09-01 10:36
spring
boot
缓存
数据库
测试替身(Test Dou
ble
)
Stub(桩)代码中不包含逻辑,作为替身只返回固定数据:publicclassLogStubimplementLogger{publicStringgetLevel(){return'DEBUG';}}Fake(伪装者)Fake是更加接近于生产行为的替身,如h2databaseSpy(间谍)对于没有返回值的方法:publicclassEmailSender{publicvoidsend(Useru
杰哥长得帅
·
2024-09-01 09:36
pyskl/datasets/pipelines/heatmap_related.py
self,results):heatmap=self.gen_an_aug(results)key='heatmap_imgs'if'imgs'inresultselse'imgs'ifself.dou
ble
鱼儿会飞吗
·
2024-09-01 09:02
python
numpy
开发语言
python3调用阿里云openapi脚本 - 生产环境
可能更多的公司会选择性使用云服务器,这样相比较而言,对后续的服务器维护、产品使用来说,创造出更多便捷的方式,云服务也给我们带来了更多的便捷性,下面是从阿里云上摘抄出来的两点:提供了丰富的接口定义,包括接口名称、出入参数定义、
错误码
kissbike148
·
2024-09-01 09:01
阿里云
云计算
个人开发
python
团队开发
【SQL数据库技术开发】第8课时-数据库SQL INSERT INTO 语句
第一种形式无需指定要插入数据的列名,只需提供被插入的值即可:INSERTINTOta
ble
_nameVALUES(value1,value2,value3,...);第二种形
青少年编程作品集
·
2024-09-01 09:59
【SQL数据库技术文档】SQL
脚本研究
数据库
sql
javascript
es6
linux
如何查看oracle客户端连接的IP地址
这边有两个方法方法1:通过触发器去记录ip--在sys的用户登录下创建表,来记录客户端使用tcp协议连接的ip地址--这边在解释下,如果客户端没用oracle的tcp连接,就不会返回IP地址createta
ble
login_history
疯狂的大狗
·
2024-09-01 09:27
oracle
oracle
数据库
tcp/ip
CSS中禁用DOM事件
例如,如果你想禁用一个按钮的点击事件,你可以这样做:.disa
ble
d-button{pointer-events:none;opacity:0.5;/*通常还会降低其透明度
冰眸js
·
2024-09-01 08:51
css
前端
Java 中的 ==, equals 与 hashCode 的区别与联系
native方法,获取对象的哈希值,用于确定该对象在哈希表中的索引位置,它实际上是一个int型整数关系操作符==基本数据类型变量在Java中有八种基本数据类型:浮点型:float(4byte),dou
ble
炜仔的图书馆
·
2024-09-01 06:11
K8s Service对外暴露端口与代理方式
K8sService对外暴露端口与代理方式Service概述Service服务类型userspace代理模式ipta
ble
s代理模式IPVS代理模式实例Service概述KubernetesService
eHV4aW5n
·
2024-09-01 05:09
kubernetes
java
分布式
vue3keep-alive 缓存的是什么信息 el-ta
ble
的expand-row-keys展开是否会默认缓存
在Vue3中,组件用于缓存不活动的组件实例,而不是渲染内容。当组件被缓存时,它的状态和数据将被保留,直到组件再次被激活。缓存的信息:组件实例:会缓存组件的实例,这意味着组件的生命周期钩子(如created、mounted、updated)不会再次被调用,直到组件被重新激活。组件状态:组件的数据和状态(例如data、computed、watchers)会被保留。子组件:如果父组件被缓存,其子组件也会
qq_42463588
·
2024-09-01 04:01
缓存
vue.js
前端
elementui el-ta
ble
表格自动循环滚动【超详细图解】
/mixins";exportdefault{data(){return{loading:false,ta
ble
Data:[],scrolltimer:'',//自动滚动的定时任务}},mounted(
舊時王謝堂前燕
·
2024-09-01 04:00
elementui
vue.js
javascript
react + ts + material-ui V5版本的ta
ble
封装
以下是一份material-uiV5版本的ta
ble
封装importReact,{forwardRef,useImperativeHandle,useEffect,useState}from'react
汝&戏
·
2024-09-01 03:29
React
Material-UI
v5
前端
react.js
ui
前端
with recursive as实现递归
withtmp1as(select*fromta
ble
1...),tmp2as(select*fromtmp1...)INSERTOVERWRITETA
BLE
bigta
ble
select*fromtmp1unionallselect
林-双喜
·
2024-09-01 03:26
数据库
sql
天宝TBCTrim
ble
Business Center中文版本下载安装使用介绍
天宝TBC:测绘之道,尽在其中引言昔日杜甫,忧国忧民,今朝我辈,测绘天下。天宝TBC,乃测绘之利器,助我等行走于山川河流之间,绘制天地之图。此文将以杜甫之笔,述说TBC之妙用,愿与君共勉。一、初识天宝TBC初识天宝TBC,犹如初见故人,心生亲切。此软件集成了GNSS接收机、全站仪、激光扫描仪、无人机等多种设备的数据处理功能,堪称测绘界之全能选手。其界面简洁明了,操作便捷,令人一见倾心。二、数据导入
Aruanjian888
·
2024-09-01 03:25
航测软件
点云处理
航测
信息可视化
航测
测绘
大地测绘
测绘合集
Navicat BI Viewer Crack
NavicatBIViewerCrackKeyFeaturesofNavicatBIViewer:System-WideDarkMode:Allowsforamorecomforta
ble
viewingexperiencebyapplyingdarkmodeacrosstheapplication.NavigationPane
SEO-狼术
·
2024-09-01 03:23
net
Delphi
Crack
开发语言
AtCoder Beginner Contest 369 A~E
369题意给两个数,问能和他们构成等差数列的数有多少个代码#include#definemod998244353usingnamespacestd;typedeflonglongll;typedefdou
ble
db
swan416
·
2024-09-01 02:22
题解
算法
c++
数据结构
笔记
CodeForces
AtCoder
信息学竞赛
学习react day02
(1)jsx即javascript+xml其实就是JavaScript对象JSX——使用react构造组件,ba
ble
进行编译==>JavaScript对象——ReactDom.render()==>DOM
花开富贵城
·
2024-09-01 02:51
react.js
学习
前端
VueDragga
ble
Plus的学习与问题解决
目录VueDragga
ble
Plus的使用插件APIgroup属性拖拽分组delay响应时间disa
ble
d启用禁用scroll是否允许滚动animation过渡效果handle鼠标在指定元素上才允许拖动
揽昕
·
2024-09-01 02:50
学习
vue.js
前端
Uncomforta
ble
?or GROWTH!
第四周不知不觉,像做梦一样,已经上班一个月了。这周整个人有些晕晕乎乎,忐忐忑忑,不在状态。但是也是在这周我开始意识到现在这个岗位的挑战,开始知道自己不知道什么,开始开窍?哈哈。走出舒适区,确实感觉不是很爽,经常忍不住想要吐槽,到处碰壁想要流眼泪,但是也许这就是再次成长的感觉吧!已经适应了土豆的夜啼。很高兴外婆没什么大碍,老妈可以过来带带土豆,公婆回家歇歇。发生在CB身上的事情让我不禁去反思,作为老
Windolivia_baba
·
2024-09-01 02:45
THE LION, THE WITCH AND THE WARDROBE CHAPTER-22
ofyourwolvesandgoatoncetothehouseoftheBeavers,"saidtheWitch,"andkillwhateveryoufindthere.Iftheyarealreadygone,thenmakeallspeedtotheStoneTa
ble
Mr_Oldman
·
2024-09-01 02:59
Top200排行榜
这里是一个基本的表结构示例:CREATETA
BLE
leaderboard(player_idINTPRI
LIHAORAN99
·
2024-09-01 02:48
linux
redis
数据库
mysql
sql
面试
力扣刷题学习SQL篇——1-12 树节点(使用行转列union/条件判断case when)
力扣刷题学习SQL篇——1-12树节点(使用行转列union/条件判断casewhen)1、题目2、解法知识补充1、题目题目链接:https://leetcode.cn/pro
ble
ms/tree-node
萌新贤的日常
·
2024-09-01 02:18
力扣题目
sql
数据库语句
leetcode
学习
sql
力扣刷题学习SQL篇——1-1 选择(大的国家——union和union all 和or)
mysql中的表索引1、题目题目链接:https://leetcode.cn/pro
ble
ms/big-countries/SQL架构Createta
ble
If
萌新贤的日常
·
2024-09-01 02:17
sql
力扣题目
java
sql
力扣刷题SQL篇(一)
组合两个表(1)表结构:(2)题目要求:(3)思路:(4)代码:2、第二高的薪水(1)表结构:(2)题目要求:(3)思路:(4)代码:1、组合两个表https://leetcode-cn.com/pro
ble
ms
冰淇淋lining
·
2024-09-01 02:46
SQL
Flutter: XCode error “Una
ble
to boot the Simulator“
我正在使用flutter、androidstudio,通过iOS模拟器运行我的项目,一直一切正常,重启Mac后再启动模拟器,无法启动模拟器,并且得到了这个错误r"Una
ble
tobootthesimulator
Alan_Walker1
·
2024-09-01 01:42
flutter
xcode
macos
iOS 模拟器打不开:una
ble
to boot the simulator
重启电脑后发现模拟器打不开,提示如下:解决方法:1、在Finder里command+shift+G前往文件夹~/Library/Developer/CoreSimulator/Caches2、删除Caches文件里面的dyld文件3、重启模拟器即可
明似水
·
2024-09-01 01:42
flutter
ios
计算机的错误计算(七十六)
例1.计算asin(0.999999999999).不妨用Python计算:再在VisualStudio2010下用下列代码计算:#includedou
ble
x=0.999999999999;dou
ble
y
zaim1
·
2024-09-01 01:42
python
c++
c#
java
c语言
bug
visual
studio
iview ta
ble
组件使用render函数,DOM重新渲染问题
最近在开发中使用iviewTa
ble
组件,ta
ble
中使用render生成button,点击修改按钮的disa
ble
d状态。触发click事件后,发现只有数据改变,按钮状态并无变化。
沧澈
·
2024-09-01 01:21
matlab图像归一化方法
16一、max-min归一化:Bmax=max(max(B));Bmin=min(min(B));B=(B-Bmin)/(Bmax-Bmin);二、B=B/255B=B/65535三、B=im2dou
ble
有梦想的炸豆皮
·
2024-09-01 00:09
matlab
matlab
VS2017QT5开发简易学生管理系统
整个系统界面如下图:(源码在最后面)1、点击“选择目的文件”即可通过文件路径选择进行查询的文件(XML)2、选择文件过后主窗口中的ta
ble
显示学生信息列表3、点击“增加学生”、“查询学生”、“修改信息
arible
·
2024-09-01 00:37
学习笔记
xml
c++
qt
map
英语笔记 | Level 12-Unit 6
Thestandardroomcomeswithaqueen-sizedbedortwodou
ble
beds.标间配有一张大号床或者两张双人床。
阿雅_Aya
·
2024-09-01 00:11
Hytrix&Feign超时时间配置
Hytrix#默认为truehystrix.command.default.execution.timeout.ena
ble
d=true#默认为1000毫秒hystrix.command.default.execution.isolation.thread.timeoutInMilliseconds
鱼da王
·
2024-09-01 00:31
2019-09-23 A lova
ble
eccentric
Trueeccentricsneverdeliberatelysetouttodrawattentiontothemselves.Theydisregardsocialconventionswithoutbeingconsciousthattheyaredoinganythingextraordinary.Thisinvariablywinsthemtheloveandrespectofother
RoadToGood
·
2024-08-31 23:58
chrome extension 普通网页与插件直接通信
例如:"externally_connecta
ble
":{"matches":["https://*.example.com/*"]}这会将消息传递API公开给与您指定的URL模式匹配的任何页面。
森叶
·
2024-08-31 23:34
extension
chrome
前端
javascript
解决echarts图形由于label过长导致文字显示不全问题
还好echarts提供了formatter方法echarts官网介绍二、修改前代码块series:[{name:seriesName||'数据来源',type:'pie',clicka
ble
:false
奔跑的痕迹
·
2024-08-31 23:20
深度学习速通系列:梯度消失vs梯度爆炸
梯度消失(VanishingGradientPro
ble
m)定义:梯度消失是指在深层神经网络的反向传播过程中,由于链式法则,梯度值随着层数的增加而迅速减小,最终趋近于零。
Ven%
·
2024-08-31 23:31
深度学习速通系列
人工智能
深度学习
python
基于vue-cli3,全局集成 scss | sass
vue.config.jsconstfs=require('fs')module.exports={css:{loaderOptions:{sass:{data:fs.readFileSync('src/assets/css/varia
ble
.scss
PHP的点滴
·
2024-08-31 22:01
C语言补习课
%f:用于输出浮点数(float或dou
ble
)。默认情况下,输出六位小数。4.%lf:专门用于输出dou
ble
类型的浮点数(尽管%f也可以,但%lf更明确)。5.%c:用于输出单个字符(char)。
番茄灭世神
·
2024-08-31 22:27
C\C++程序设计
c语言
开发语言
入门到精通,掌握这些SQL语句让你成功玩转数据库!
CREATETA
BLE
ta
ble
_name(column1datatype,column2datatype,column3datatype,.....);4.如何修改一个数据表的列名?
小码哥说测试
·
2024-08-31 20:16
软件测试
技术分享
自动化测试
数据库
sql
jmeter
单元测试
测试工具
自动化测试
软件测试
选择不来月经,对身体到底有没有伤害?
‘Womendon’tneedto
ble
ed’:whymanymoreofusaregivinguponperiodscontraception/ˌkɑːntrəˈsepʃn/n.避孕(法)词根词缀:contra
寒冬秀叶
·
2024-08-31 20:15
多线程中的同步
的代码块语法:synchronized(对象){}2.synchronized的方法synchronizedvoid方法名(){}以下是实例classThreadDemo020implementsRunna
ble
Aluha_f289
·
2024-08-31 19:30
C# 第十四弹 —————— 扩展方法
继续举个栗子,eg:classTest{privatedou
ble
d1;privatedou
ble
d2;privatedou
ble
d3;publicTest(dou
ble
d1,dou
ble
d2,dou
ble
d3
qq_29241013
·
2024-08-31 19:09
C#学习
C#
C#
springboot 单体服务运行bat脚本
jar运行在windows服务器上面一般是cmd窗口输入命令启动服务,或者注册成windows服务开机启动,今天写了一个简单的bat脚本,输入参数重新运行指定jar包@echooffsetlocalena
ble
delayedexpansionchcp65001echo
bencolyy
·
2024-08-31 19:06
java
spring
boot
java
linux
java篇 常用工具类 0x03:Iterator 与 Itera
ble
接口
文章目录Iterator接口Itera
ble
接口手动实现Itera
ble
接口示例Iterator接口Iterator接口在java.util包中。实现了Iterator接口的类就可以支持遍历操作。
Kevin骑熊猫打老虎
·
2024-08-31 18:04
java
java
el-from表单实现la
ble
字体大小改变
//给当前页面所以的la
ble
都字体发生改变/deep/.el-form-item__label{font-size:40px;}//如何想给某个la
ble
字体修改.my-form/deep.el-form-item
乐容
·
2024-08-31 17:27
vue.js
javascript
前端
hivesql 练习3
0001,22,45张三,0002,22,56李四,0002,18,88赵五,0002,24,66--目标表(科目0001没有成绩的学生name和age)name,age李四,18赵五,24createta
ble
score_t
小涛手记
·
2024-08-31 17:54
hive
hive
sql
大数据
qt连接mysql(报错,误区,成功配置)
qt5.6.3qt5.0.1连接mysql8.0.25,频繁出现这两种错误:erroropendatabasebecause"SSLconnectionerror:unknownerrornumberQMYSQL:Una
ble
toconnect"erroropendatabasebecause"Can'tconnecttoMySQL
mengzhi啊
·
2024-08-31 17:22
qt
c++
mysql
cesium加载在线3dtiles
AccessTokens2、加载在线建筑物白膜,代码如下:consttileset=viewer.scene.primitives.add(awaitCesium.createOsmBuildings({ena
ble
ShowOutline
GISER_WDL
·
2024-08-31 16:15
3d
C++封装的意义
将属性和行为作为一个整体,用来表示生活中的事物示例:#includeusingnamespacestd;#include#definePI3.14classCircle{public:intm_r;dou
ble
calculate
cijiancao
·
2024-08-31 16:44
C++笔记
封装
c++
上一页
1
2
3
4
5
6
7
8
下一页
按字母分类:
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
其他