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BLE外围设备数据管理
Mysql FLOAT和DOU
BLE
类型区别
存储方式:FLOAT和DOU
BLE
是浮点数类型,它们以二进制格式存储数值,可以存储近似值。这意味着某些特定的小数值可能无法精确表示,可能会有微小的计算误差。
u010373106
·
2024-09-07 07:40
Mysql
mysql
Go语言变量的声明
Go语言是静态类型语言,因此变量(varia
ble
)是有明确类型的,编译器也会检查变量类型的正确性。在数学概念中,变量表示没有固定值且可改变的数。
u011290064
·
2024-09-07 06:03
golang
开发语言
后端
Python运用PySide6/PyQt居然可以制作如此好看的界面——““创意解析””
PyThon运用PySide6/PyQt居然可以制作如此好看的界面——““创意解析””导语:你将获取以下知识:相关控件:QWidgetQLineEidtQTa
ble
WidgetQLabelQPushButtonQss
白日飞猪
·
2024-09-07 06:32
创意解析
python
pyqt
用户界面
ui
爬虫
pillow
react- native创建pdf
AndroidManifest.xml添加以下WRITE_EXTERNAL_STORAGE权限:使用:importReact,{Component}from'react';import{Text,Toucha
ble
Highlight
孟宪磊mxl
·
2024-09-07 05:26
react.js
pdf
前端
react
native
【Python】Python中变量或者函数加下划线‘_‘的含义
以下是一些常见的用法:单下划线前缀(_varia
ble
):私有性:单个下划线前缀的变量或函数通常用于表示“私有”的,意味着这些变量或函数不应该被外部直接访问。
读思辨
·
2024-09-07 05:52
Python
python
开发语言
ta
ble
表头固定
ta
ble
scrollingwithfixedheaderhttps://codepen.io/joshuarule/pen/rjRJog
无名程序猿
·
2024-09-07 05:51
父类是给java项目SpringCloud微服务 中SpringBoot解决继承父类后 maven标红
解决继承父类后maven标红问题:Project:org.example:SpringCloud_wfw:1.0-SNAPSHOTLocation::X:/SpringCloud_微服务/pom.xmlPro
ble
ms
不太会写
·
2024-09-07 04:18
java
spring
boot
spring
cloud
8月29号
define__class__#include#includeusingnamespacestd;classstu{private:stringname;protected:intage;public:dou
ble
score
yueduwudi
·
2024-09-07 03:43
c++
开发语言
Java面试题
它与Servlet有什么区别7、synchronized关键字8、HashTa
ble
与HashMap的区别9、ArrayList和LinkedList的区别10、Session和Cookie的区别11、
路飞Fly了
·
2024-09-07 02:08
java
面试
开发语言
mysql gtid 限制_MySQL启用GTID的限制-阿里云开发者社区
mysql>CREATETA
BLE
error(IDINT)ENGINE=MyISAM;Query
weixin_39970994
·
2024-09-07 02:05
mysql
gtid
限制
imp-00017 oracle 942,IMP导入遇到IMP-00017,ORA-00942
catparfile_imp.txtuserid="scott/tiger"file=/home/oracle/exp_lzl.dmplog=/home/oracle/imp_lzl.logbuffer=102400ta
ble
s
乐姐理财说
·
2024-09-07 01:34
imp-00017
oracle
942
mysql报错1785_MYSQL Statement violates GTID consistency: Updates to non-transactional ta
ble
s can only .
org.hibernate.engine.jdbc.spi.SqlExceptionHelper:144]StatementviolatesGTIDconsistency:Updatestonon-transactionalta
ble
scanonlybedoneineitherautocommittedstatementsorsingle-s
张观鱼
·
2024-09-07 01:34
mysql报错1785
powerdns配置
epel-release.noarch2:安装mariaDByum -y install mariadb-server mariadb3.设置服务开机启动和启动Mariadbsystemctl ena
ble
weixin_33701251
·
2024-09-07 01:03
php
数据库
运维
12c RAC扩容undo表空间
Oracle12cR1RACcolsidfora10colnamefora20colvaluefora20selectsid,name,valuefromv$spparameterwherename='undo_ta
ble
space
weixin_33721427
·
2024-09-07 01:33
数据库
oracle 扩容undo,【案例】Oracle RAC数据库undo使用率较高的解决思路办法
本站文章除注明转载外,均为本站原创:转载自lovewife&lovelife—Roger的Oracle技术博客本文链接地址:aboutUndoTa
ble
spaceusedHigh今天有朋友在问关于undo
南门居士-杜锦刚
·
2024-09-07 01:33
oracle
扩容undo
Statement violates GTID consistency: Updates to non-transactional ta
ble
s
StatementviolatesGTIDconsistency:Updatestonon-transactionalta
ble
s,canonlybedoneineitherautocommittedstatementsorsingle-statementtransactions
罗罗的1024
·
2024-09-07 01:32
Linux
问题集
mysql
linux
java
现代数据栈MDS的主要特征
数据管理
正在从分析优先战略转变为基于结果的战略,这
m0_59327713
·
2024-09-07 01:00
游戏
大数据
人工智能
Oracle undo表空间爆满的解决
1.查找数据库的UNDO表空间名,确定当前例程正在使用的UNDO表空间:Showparameterundo_ta
ble
space。
小学生汤米
·
2024-09-07 01:29
ORACLE
ORACLE
undo
空间满
undo 表空间满了的处理方法
方法一:添加undo表空间的数据文件alterta
ble
spaceundoadddatafile'/u01/oracle/backup/undo02.dbf'size100Mreuse;方法二:切换undo
cm_0205
·
2024-09-07 01:58
数据库
Mysql:create ta
ble
... select ...报错
客户做mysql迁移,从本地mysql迁移到云mysql,结果系统报错,日志里显示StatementviolatesGTIDconsistency:CREATETA
BLE
...SELECT.就是类似的语句违反了
大道不孤,众行致远
·
2024-09-07 00:25
技术杂谈
mysql
数据库
设置contentedita
ble
的非表单元素限制字数时设置光标位置
html:请输入选项内容js:$("#optionA").on({input:function(e){limited(e.target.id,30);},click:function(e){write($("#"+e.target.id));}});//字符串截取functionlimited(obj,num){varcommentLength=$('#'+obj).text().length;i
Jerry379
·
2024-09-07 00:01
使用vue3+ts封装一个自动补全输入框Autocomplete组件
组件接收placeholder、debounce和cleara
ble
作为props,并根据这些props来渲染输入框和下拉菜单{{item}}import{defineComponent,ref,watch
温暖前端
·
2024-09-07 00:22
javascript
前端
vue.js
LeetCode-055-跳跃游戏
来源:力扣(LeetCode)链接:https://leetcode-cn.com/pro
ble
ms/jump-game/著作权归领扣网络所有。商业转载请联系官方授权,非商业转载请注明出处。
醉舞经阁半卷书
·
2024-09-06 23:36
@RequestBody部分值传入,部分值为null的问题
一开始觉得是Dou
ble
类型的缘故,在这里改来改去,然后最后由聪明的张经理发现,是因为postman传的json名称那里多了空格,导致与后端属性映射不上,特此记录,搞开发一定要多多考虑,否则就会死在很小的点上
seasugar
·
2024-09-06 22:16
Java
spring
FFmpeg源码:compute_frame_duration函数分析
本文演示用的FFmpeg源码版本为7.0.1)的源文件libavformat/demux.c中:/***Returntheframedurationinseconds.Return0ifnotavaila
ble
cuijiecheng2018
·
2024-09-06 22:44
FFmpeg源码分析
ffmpeg
用合适的索引避免不必要的全表扫描
创建一张测试表及创建一个普通的单键值B树索引:复制代码复制代码SQL>createta
ble
t1a
数字天下
·
2024-09-06 22:13
oracle
索引
全表扫描
Keras-OCR:高效且易用的深度学习 OCR 库
Keras-OCR:高效且易用的深度学习OCR库keras-ocrApackagedandflexi
ble
versionoftheCRAFTtextdetectorandKerasCRNNrecognitionmodel
吕真想Harland
·
2024-09-06 21:10
ThreadLocal 实战用法
ThreadLocal实战用法ThreadLocal是什么首先来看一下官方解释:Createsathreadlocalvaria
ble
.Theinitialvalueofthevaria
ble
isdeterminedbyinvokingthegetmethodontheSupplier
crxk
·
2024-09-06 21:10
Java
java
多线程
微信小程序 手写签名_小程序手写签名(wepy)
解决这个问题的方法是给canvas给disa
ble
-scroll属性绑定一个变量disa
ble
-scroll="true"当进行滑动的时
weixin_39906245
·
2024-09-06 20:33
微信小程序
手写签名
Bub
ble
Utils贝塞尔曲线常用工具类
publicclassBub
ble
Utils{/***dip转换成px**@paramdip*@paramcontext*@return*/publicstaticintdip2px(floatdip,
Peakmain
·
2024-09-06 20:07
大数据系列之:OutOfMemoryError: una
ble
to create new native thread
大数据系列之:OutOfMemoryError:una
ble
tocreatenewnativethread问题:环境:原因:解决问题:有时候当Java尝试创建一个新的线程时,操作系统会阻止它。
快乐骑行^_^
·
2024-09-06 19:55
大数据
大数据
OutOfMemory
Error
unable
native
thread
python a星算法_A星算法_A*算法_python实现
classNode:def__int__(self):self.una
ble
=Falseself.distanceFromDes=-1#距离终点的距离self.distanceFromOri=-1#距离起点的距离
weixin_39983223
·
2024-09-06 19:52
python
a星算法
【Spring】深入解析 Ena
ble
AutoConfiguration 注解:Spring Boot 自动配置的核心
前言在SpringBoot中,@Ena
ble
AutoConfiguration注解扮演着重要的角色,它是实现自动配置功能的关键。
知行小栈
·
2024-09-06 18:13
Spring
spring
boot
spring
java
c++ 指针的用法详解
类型:指针的类型决定了它所指向的变量类型,例如int*、char*、dou
ble
*等。2.指针的声明和初始化intmain(){intvar=10;//定义一个整数变量
黄卷青灯77
·
2024-09-06 18:42
c++
开发语言
指针
ansi
ble
实战自动化运维项目
Ansi
ble
是一个强大的自动化工具,广泛应用于配置管理、应用部署、任务自动化和IT环境编排。在实际生产环境中,Ansi
ble
可以帮助运维团队高效地管理服务器、应用和服务。
清风 001
·
2024-09-06 18:11
Linux系统
运维
C#利用反射将实体类List
转化为Datata
ble
背景介绍C#中实体类的操作十分简便,一般情况下不需要涉及ADO.NET,如果需要将实体类转化为Datata
ble
,这个时候就需要手动写一个方法了,代码如下图所示:publicstaticclassIEnumera
ble
Extention
机械键盘侠
·
2024-09-06 17:10
C#学习
c#中将datata
ble
转成实体
@[TOC](c#中datata
ble
转实体)什么是databta
ble
DataTa
ble
表示内存中数据的一个表,是一个后台数据源和前台显示之间的适配器。
沧.海
·
2024-09-06 17:38
c#
开发
c#
PyQt5——QLineEdit(单行文本框控件)
、常用方法方法描述text()返回文本框的内容setText()设置文本框的内容setReadOnly()设置文本为只读setMaxLength()设置文本框所允许输入的最大字符数setDragEna
ble
weixin_41881387
·
2024-09-06 17:37
qt
开发语言
【Unity开发】
Ble
nder导入VRM格式注意事项
【背景】
Ble
nder顺利导入了VRMFormat插件后,发现有的电脑导入后Mesh,Armature和Texture都一切正常,有的电脑只能导入一个框架。
每日出拳老爷子
·
2024-09-06 17:07
VR和Unity游戏开发
blender
商务英语level3 unit2 part4 Non speaking.
Whichdepartmenthandlesemployeeissuesandpro
ble
ms?
Alexandear
·
2024-09-06 17:12
P1024 [NOIP2001 提高组] 一元三次方程求解
题目描述:AC代码:#includeusingnamespacestd;dou
ble
a,b,c,d;intans=0;dou
ble
f(dou
ble
x){returna*x*x*x+b*x*x+c*x+d
喝可乐的布偶猫
·
2024-09-06 17:05
c++
泛型+自定义属性 实现 DataTa
ble
转换成实体类
c#+泛型+自定义属性实现DataTa
ble
转换成实体类usingSystem;usingSystem.Collections;usingSystem.Collections.Generic;usingSystem.Text
是刘彦宏吖
·
2024-09-06 17:04
C#
中级知识汇总
c#
鹏的ScalersTalk第四轮朗读持续力训练Day28、2018.11.4
JasperWhiteisoneofthoserarepeoplewhobelievesinancientmyths.Hehasjustboughtanewhouseinthecity,buteversincehemovedin,hehashadtrou
ble
withcarsandtheirowners.Whenhereturnshomeatnight
Yi条成熟_2ee1
·
2024-09-06 16:18
【笔记】Explain执行计划怎么看
Explain执行计划包含字段信息如下:分别是id、select_type、ta
ble
、partitions、type、possi
ble
_keys、key、key_len、ref、rows、filtered
寻梦的小柳
·
2024-09-06 15:05
YOLOv10改进 | Conv篇 | YOLOv10引入24年最新卷积模块LDConv
尽管可变形卷积(Deforma
ble
Conv)解决了标准卷积的固定采样问题,但是参数的数
小李学AI
·
2024-09-06 15:56
YOLOv10有效涨点专栏
YOLO
人工智能
深度学习
计算机视觉
目标检测
【python报错】TypeError:__init__() got an unexpected keyword argunent ‘executa
ble
_path‘解决方案
【Python报错】TypeError:init()gotanunexpectedkeywordargument'executa
ble
_path’解决方案在使用Python的Selenium库进行自动化测试或爬虫开发时
云天徽上
·
2024-09-06 15:54
python运行报错解决记录
python
开发语言
numpy
pandas
云苍穹单据修改字段后保存时报错alter Ta
ble
xx add xx navrchar(50)default() not null如何解决?
正文如下图所示,我在修改单据的某几个字段保存时,则报如下错误alterta
ble
t_kdgz_ysdoo1_entryaddfauxpropid.fbdzggnavarchar(50)default('
涎涎
·
2024-09-06 15:26
数据库性能大揭秘:玩转MySQL监控指标状态变量
这些指标,通常以状态变量(statusvaria
ble
s)的形式呈现,是洞察数据库性能的关键。接下来,我们将逐一解析与连接相关的监控变量,包括当前连接数、活跃连接数、缓存线程数以及已创建的线程数。
云掣YUNCHE
·
2024-09-06 14:17
数据库
mysql
python自动化运维项目实战_全网稀缺的Python/Django/Ansi
ble
Playbook自动化运维项目实战视频课程...
配置文件properties比yml优先级高SpringBoot使用一个全句的配置文件,配置文件名是固定的;application.propertiesapplication.yml配置文件的作用:修改SpringBoot自动配置的默认值,SpringBoot在底层都给我们自动配置好了。YAML,是/不是一个标记语言标记语言:以前的配置文件:xxx.xmlyaml:以数据为中心,比json、xml
weixin_39977642
·
2024-09-06 14:16
python自动化运维项目实战
IOS 21 发现界面(UITa
ble
View)单曲列表(UITa
ble
View)实现
发现界面完整效果本文实现歌单列表效果文章基于IOS20发现界面(UITa
ble
View)歌单列表(UICollectionView)实现继续实现发现界面单曲列表效果单曲列表Cell实现实现流程:1.创建
sziitjin
·
2024-09-06 14:14
IOS
ios
UITableView
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