• 2025-01-04How Does React actually work ?
    ThebasicconceptsofReactreconciliationvirtualDOMrenderingdiffingalgorithmpre-knowledgeunderstandthedifferencebetweenReactcomponents,elementsandcomponentWhatisaReactcomponent?Reactcomponent=classorafunctionthatoutpu
  • 2024-12-20关于stm32f407 cherryusb初始化失败“This dwc2 version does not support dma mode, so stop working”问题
    初学cherryusb,照着论坛帖子操作,将cherryusb软件包加入到407工程,编译完成后,下载,出现如下问题:[I/USB]dwc2has1channelsanddfifodepth(32-bitwords)is0[E/USB]Thisdwc2versiondoesnotsupportdmamode,sostopworking通过反复确认,各种定位尝试,最终发现是usb模
  • 2024-12-16What on earth does '?C=M;O=A' mean?
    I'vejustbeendownloadingsomeMP4sfromaopendirectoryandI'vegotweirdoutputatthestartoftheoutputbeforegoingonanddownloadingthefiles.I'vetriedsearchingbutfoundnothingcloseandwaswonderingifyoucouldhelp:)I
  • 2024-12-12视频标签全面解析
    视频标签全面解析一、HTML5视频标签基础在HTML5中,<video>标签用于在网页里嵌入视频,其基本语法如下:<videosrc="video_file.mp4"controls>Yourbrowserdoesnotsupportthevideotag.</video>其中,src属性指定视频文件路径,controls属性决定是否显示播放控制按
  • 2024-10-08错误消息:UndefinedVariableError: Variable 'user' does not exist
    错误消息:UndefinedVariableError:Variable'user'doesnotexist原因:模板中引用的变量未在上下文中定义。解决方法:检查变量定义:确认变量是否在模板上下文中定义。例如,在PHP中传递变量:$user=['name'=>'Alice'];echo$twig->render('index.html.twig',[�
  • 2024-09-120. 编译错误解决
    1.WARNING:Makefile'package/utils/busybox/Makefile'hasadependencyon'libpam',whichdoesnotexistWARNING:Makefile'package/utils/busybox/Makefile'hasadependencyon'libpam',whichdoesnotexistWARNING
  • 2024-08-29An unbiased evaluation of environment management and packaging tools
    forward:https://alpopkes.com/posts/python/packaging_tools/ LastupdateThispostwaslastupdatedonAugust29th,2024.MotivationWhenIstartedwithPythonandcreatedmyfirstpackageIwasconfused.Creatingandmanagingapackageseemedmuchhard
  • 2024-08-29An unbiased evaluation of environment management and packaging tools
    forward:https://alpopkes.com/posts/python/packaging_tools/ LastupdateThispostwaslastupdatedonAugust29th,2024.MotivationWhenIstartedwithPythonandcreatedmyfirstpackageIwasconfused.Creatingandmanagingapackageseemedmuchhard
  • 2024-08-16Why Does ChatGPT Fall Short in Providing Truthful Answers?
    文章目录题目摘要简介相关工作模型和数据集结果事实性背后的能力提高QA的事实性结论题目为什么ChatGPT无法提供真实的答案?论文地址:https://arxiv.org/abs/2304.10513摘要    ChatGPT等大型语言模型的最新进展已显示出影响人类生活各个方面的巨大潜
  • 2024-08-06WPFUI报错 - page does not have a parameterless constructor
    WPFUI报错pagedoesnothaveaparameterlessconstructor.IfyouareusingWpf.Ui.IPageServicedonotnavigateinitiallyanddon'tuseCacheorPrecache问题原因WPFUI中的NavigationView只支持导航页面的无参构造函数或含一个dataContext的有参构造函数。因为在View
  • 2024-07-22CF1152C Neko does Maths
    欢迎您来我的网站看这篇题解!ProblemNekohastwointegers\(a\)and\(b\).Hisgoalistofindanon-negativeinteger\(k\)suchthattheleastcommonmultipleof\(a+k\)and\(b+k\)isthesmallestpossible.Iftherearemultipleoptimalintegers\(k\),h
  • 2024-07-15Exchange邮箱用户发邮件失败,提示“ Client does not have permissions to send as this sender”
    原贴https://www.cnblogs.com/dreamer-fish/p/16876232.htmlExchange邮箱用户发邮件失败,提示“Clientdoesnothavepermissionstosendasthissender”Exchange用户发邮件提示“5505.7.60SMTP;Clientdoesnothavepermissionstosendasthissender”处理方法:
  • 2024-07-12php:访问/tmp文件夹中文件会报错:file does not exist
    一,php访问/tmp文件夹中文件会报错:代码:$filePath="/tmp/php-temp/keji.jpeg";$is_ex=file_exists($filePath);//print_r("is_ex:".$is_ex);if($is_ex){echo"文件".$filePath.&
  • 2024-07-10"HIBERNATE_SEQUENCE" does not exist问题处理
    JavaWeb应用在MySQL环境下可以正常运行,数据迁移至Oracle或者人大金仓后应用运行爆出如下错误:严重:Servlet.service()forservlet[JeeCmsAdmin]incontextwithpath[/dhccms]threwexception[org.hibernate.exception.SQLGrammarException:couldnotgetnextsequence
  • 2024-06-18Ragas实践问题记录1 ValueError: Directory ./arxiv-papers/ does not exist.
    纯小白,记录一下在尝试ragas时遇到的一些问题。尝试官方文档“CompareLLMsusingRagasEvaluations”时,在Createsynthetictestdata步骤复制github中的代码时,遇到了以下问题:ragas官方文档查看请点此解决方法是前往openxlab下载数据集,再使用本地的路径替换掉报错的地方
  • 2024-05-15Delphi DX10.2安装TeeChartPro2022找不到指定文件
    1、显示报错TeeChartProCompilationstarted:2024-05-1517:12:48Win32v25Enterprise(Delphi10.2andC++Builder10.2Update3)(C++)ERRORTee925Thisversionoftheproductdoesnotsupportcommandlinecompiling.TeeUI925Thisversionoftheproductdoe
  • 2024-05-15How Does the Rook Move?
    题目链接https://codeforces.com/contest/1957/problem/C思路其实不难,最重要的就是一个问题,从n个数中两两配对,有多少种配法首先进行全排列,即N!除去左右相等的即2的n/2次方,再除去彼此之间没顺序(N/2)!代码#include<iostream>#include<cstdio>#include<algorithm>#include<cst
  • 2024-05-14pinus老项目启动遇'Property connector does not exist on type UserRpc'报错
    跟示例项目对比过,配置代码并无出入,尝试在示例中新增远程调用connectorRemote可用,证明代码配置正确尝试在示例项目中使用工作项目的配置文件包括引用的模块文件目录列表如下 packagespluginspackage.jsonpackage-lock.jsontsconfig.jsonyarn.lock 示例安装模块后,运
  • 2024-05-12Does One Have to be a Genius to Do Maths? (必须是天才才能做数学吗?)
    Thisisaquestionthatmanypeopletalkabout.AndIthinkitisimportantbecauseincorrectresponsescanmisleadindividualsandsignificantlyinfluencehis/herattitudetostudyingmathematics.Letmequotethefollowingtwotoexpressmyopinion.Th
  • 2024-05-05TypeError 'tuple' object does not support item assignment
    左手编程,右手年华。大家好,我是一点,关注我,带你走入编程的世界。公众号:一点sir,关注领取编程资料TypeError:'tuple'objectdoesnotsupportitemassignment是一个在Python编程语言中常见的错误,意味着你试图修改一个不可变的元组(tuple)对象中的元素。在Python中,元组是一种不
  • 2024-04-26What does "xargs grep" do?
     https://askubuntu.com/questions/833128/what-does-xargs-grep-dohttps://superuser.com/questions/46199/how-to-combine-find-and-grep-for-a-complex-search-gnu-linux-find-grephttps://unix.stackexchange.com/questions/310987/how-to-use-find-and-grep-effective
  • 2024-04-23Mysql 密码报错 You must reset your password ... 和 Your password does N
    如果MySQL数据库用户的密码设置过于简单,数据库在用户登录后会提示重置密码,并且不接受简单的密码。提示需要重置密码:ERROR1820(HY000):YoumustresetyourpasswordusingALTERUSERstatementbeforeexecutingthisstatement.Mysql数据库版本:5.7.1操作系统:CentOS7这
  • 2024-04-22C. How Does the Rook Move?
    https://codeforces.com/contest/1957/problem/C题面:题解:补充说明:把n阶棋盘想成n-1阶和外面套了一圈的如上图则可以分成下面两种情况:1.下在(1,1)处,那么为dp[n-1]2.从(1,2)...(1,n-1)|(2,1)...(n-1,1)共有n-1种显然为2(n-1)dp[n-2]那么递推:dp[n]=dp[n-1]+2*(n-1)*dp[n-