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vue3 报错 Uncaught TypeError: Cannot read properties of undefined (reading ‘deep‘)

报错信息 Uncaught TypeError: Cannot read properties of undefined (reading 'deep') at withDirectives (runtime-core.esm-bundler.js:2774:17) at Proxy._sfc_re ......
properties TypeError undefined Uncaught reading

TypeError: Cannot read property 'resetUpScroll' of null

在onshow中使用mescroll-body组件this.mescroll.resetUpScroll()方法会报错，延迟50秒会正常 这个报错通常是由于在onShow生命周期中访问某些组件的属性或方法时，这些组件尚未完全初始化所导致的。 延迟50毫秒后调用resetUpScroll方法可能是因为 ......
resetUpScroll TypeError property Cannot 39

SpringBoot报错：Error resolving template [index], template might not exist or might not be accessible by any of the configured Template Resolvers

springboot项目正常启动，但是在访问页面的时候报错，错误信息如下： Whitelabel Error PageThis application has no explicit mapping for /error, so you are seeing this as a fallback.​ ......
template might SpringBoot accessible configured

Linux系列---【The authenticity of host 'node01 (192.168.1.200)' can't be established.】

#报错信息 我在设置免密登录的时候报了下面的错 /usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/root/.ssh/id_rsa.pub" The authenticity of host 'node01 (192.16 ......
authenticity established 39 Linux host

CF(2E) Keshi in Search of AmShZ (图论,最短路,建边权值变形)

思路: 关键是操作2的性质: 随机找->找一个路径最长的点 操作1,阻止建边顾名思义, 发现和最短路很想, 从n到每一个点的权值嘛 改变权值更新方式, 边的权值为: val[i]+前面那个点是第几大的, (这里每一个出度的点都要算) ->满足题目要求 然后 这个第几大,利用出度来优化, 更新一个后就 ......
Search AmShZ Keshi CF 2E

npm WARN deprecated core-js@2.6.12: core-js@<3.23.3 is no longer maintained and not recommended for usage due to the number of issues

npm WARN deprecated core-js@2.6.12: core-js@<3.23.3 is no longer maintained and not recommended for usage due to the number of issues. Because of the ......
core-js core recommended deprecated maintained

解决报错Cause: java.lang.StringIndexOutOfBoundsException: String index out of range: 609

Cause: java.lang.StringIndexOutOfBoundsException: String index out of range: 609 这个原因是由于Mybatis 插入数据报错： org.mybatis.spring.MyBatisSystemException: nes ......
StringIndexOutOfBoundsException String Cause index range

Unable to start the daemon process . This problem might be caused by incorrect configuration of the daemon. For example, an unrecognized jvm option is used.

创建springboot项目的时候报这个错 是因为你选择了Gradle环境 但是你本地没有这个Gradle环境 选择maven环境就可以了 ......
daemon configuration unrecognized incorrect the

【题解】[SDOI/SXOI2022] 小 N 的独立集（dp of dp）

题目分析： 就借助这个题稍微说一下 $dp$ 套 $dp$。 对于 $dp$ 套 $dp$ 其解决的问题是：若给定某一具体情况则答案十分好求，现要求对于所有的情况的答案进行统计。 这类问题我们一般称解决这个具体情况的 $dp$ 为内层 $dp$，而对于所有情况进行统计的 $dp$ 为外层 $dp$。 ......
题解 SDOI 2022 SXOI of

java reflection exception--can not access a member of class XXX with modifiers "private"

If you try to visit the value of an object's private field using reflection, such as Field#get or Field#set, you should call Field#setAccessible ahead... ......
quot reflection exception modifiers private

注入了一个记录日志的接口，启动微服务工程的时候报错了：No qualifying bean of type 'com.cscecnf.common.log.SysOprLogDao'

【问题描述】 Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'monitorAreaServiceImpl': Injection of resour ......
SysOprLogDao qualifying 接口 cscecnf 时候

Memory Barrier 内存屏障 和 OUT OF ORDER EXECUTION OOOE OOE 乱序执行 幻读 脏读

问题 开发过程中，同一系统上，两个进程，使用了共享内存方式通信。为了追求性能，一个进程是生产者，一个进程是消费者；一个负责写，一个负责读，没有锁。写入完成后，再更新写的标识；读取数据并操作完成后，再更新读取标识，理论上没有问题，但是服务器上运行起来后，会读取到无意义的内容。 读取数据很大或者无效数据 ......
屏障 EXECUTION 内存 Barrier Memory

mysql报错 1140 - In aggregated query without GROUP BY, expression #1 of SELECT list contains nonaggregated column 'a.user_name'; this is incompatible with sql_mode=only_full_group_by

表结构如下： CREATE TABLE `user` ( `id` bigint NOT NULL, `user_name` varchar(255) DEFAULT NULL, `password` varchar(255) DEFAULT NULL, `create_time` datetime ......
only_full_group_by nonaggregated incompatible aggregated expression

pytest踩坑--运行报错DeprecationWarning: Using or importing the ABCs from 'collections' instead of from 'collections.abc' is deprecated since Python 3.3 ,and in 3.9 it will stop working

问题现象： 使用pytest运行用例时，用例执行完毕总会提示以下警告 警告意思：弃用警告：从collections中导入ABCs已被弃用，并在python3.9中将停止工作，可使用collections.abc代替它进行使用 但我代码中并未使用这个库，也没有导入这个库。就很纳闷 解决： 百度了一下解 ......
collections DeprecationWarning 39 from deprecated

npm i报错---Cannot read properties of null (reading ‘pickAlgorithm‘)

现象 在导入Vue项目使用 ' npm i ' 安装node_moduels的时候，终端出现错误如下： 解决 1、在终端输入： npm cache clear --force npm cache clear --force 2、重新运行 npm i 命令 npm i ......
pickAlgorithm properties reading Cannot read

Paper Reading: Interpretable Rule Discovery Through Bilevel Optimization of Split-Rules of Nonlinear Decision Trees

对于可解释的分类器本文限制为用简单的数学术语表示，使用非线性决策树(NLDT)将分类器表示为简单数学规则的集合。树的每个非叶结节点表示一个非线性数学规则，将给定条件节点中的数据集划分为两个不重叠的子集。通过限制每个条件节点上的分裂规则结构和决策树深度，保证了分类器的可解释性。在给定条件节点上的非线性... ......
Interpretable Optimization Split-Rules Discovery Nonlinear

url patterns to acccess views of app in Django

问题 The difference between the following url patterns in main project of Django?from testinclude import views as subViewssub=[path("sub/",subViews.usei ......
patterns acccess Django views url

Python之禅, 作者Tim Peters(The Zen of Python, by Tim Peters)

The Zen of Python, by Tim Peters Beautiful is better than ugly. 美丽的比丑陋的好。 Explicit is better than implicit. 明确的比隐含的好。 Simple is better than complex. 简 ......
Python Peters Tim 作者 The

[LeetCode] 2316. Count Unreachable Pairs of Nodes in an Undirected Graph

You are given an integer n. There is an undirected graph with n nodes, numbered from 0 to n - 1. You are given a 2D integer array edges where edges[i] ......
Unreachable Undirected LeetCode Count Graph

Caused by: java.sql.SQLException: Parameter index out of range (2 > number of parameters, which is 1).

一、问题背景 在xml配置中自定义了sql语句 二、报错截图如下 三、我的项目配置如下 四、分析问题 五、问题原因 在xml中自定义sql语句时，里面不能有注释过得sql 六、解决方式 https://thinkingcao.blog.csdn.net/article/details/1038159 ......
SQLException parameters Parameter Caused number

A Survey of Diversification Techniques in Search and Recommendation

Wu H., Zhang Y., Ma C., Lyu F., Diaz F. and Liu X. A survey of diversification techniques in search and recommendation. arXiv preprint arXiv:2212.1446 ......
Diversification Recommendation Techniques Survey Search

assembly of tiny problems I come across when using Ubuntu

1. flameshot couldn't work properly. after running, it doesn't act to enable selecting area as expected, but pop out a frame and I need to click 'shar ......
assembly problems across Ubuntu using

Measuring the diversity of recommendations: a preference-aware approach for evaluating and adjusting diversity

Meymandpour R. and Davis J. G. Measuring the diversity of recommendations: a preference-aware approach for evaluating and adjusting diversity. Knowled ......
diversity preference-aware recommendations evaluating preference

[LeetCode] 1032. Stream of Characters

Design an algorithm that accepts a stream of characters and checks if a suffix of these characters is a string of a given array of strings words. For ......
Characters LeetCode Stream 1032 of

【THM】Principles of Security(安全原则介绍)-学习

本文相关的TryHackMe实验房间链接：https://tryhackme.com/room/principlesofsecurity 本文相关内容：了解保护数据和保护系统免受滥用的信息安全原则。 简介 本文将概述信息安全的一些基本原则，相关的框架能用于保护数据和系统，以确保网络安全。 本文所讨论 ......
Principles Security 原则 THM of

Two out of Three CF82D

给定一个序列，每次从前三个中选两个值并取他们的最大值累加，不足 3 个就取剩下的 1 个或 2 个的最大值累加， 求和的最小值以及取法。 每一次会取两个数，也就是会剩下一个数，所以我们可以把剩下的那个数来设状态 F[ i] [j ] 前i个数，剩余的数为j #include <iostream> # ......
Three Two 82D out CF

java.lang.UnsupportedClassVersionError: (class file version 61.0), this version of the Java Runtime only recognizes 52

问题背景，新建5个springboot modules。使用相同的依赖 pom.xml 文件。其中 4 个工程正常启动。有一个如图：GulimallWareApplication 跑不起来。报错版本不对。 本人机器上只配置了 1.8 的jdk。所以很纳闷。原以为是不是新版本 idea 自带（刚刚下载 ......
version UnsupportedClassVersionError recognizes Runtime class

03.Forecasting the realized volatility of stock price index A hybrid model integrating CEEMDAN and LSTM

Forecasting the realized volatility of stock price index A hybrid model integrating CEEMDAN and LSTM 预测股票价格指数的实际波动率 CEEMDAN 和 LSTM 的混合模型 波动率：波动率是金融资产价 ......
Forecasting integrating volatility realized CEEMDAN

Wallys|Brief introduction of Wifi 7

Wi-Fi 7 explained WiFi 7 is the upcoming WiFi standard, also known as IEEE 802.11be Extremely High Throughput (EHT). It works across all three bands ( ......
introduction Wallys Brief Wifi of

what are the primitive types of C++?

In C++, there are several primitive data types, which are also known as fundamental or built-in data types. These include: Integer types: Used to repr ......
primitive types what are the
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