economist from the to
Grafana学习（8）——Introduction to Alerting
Whether you’re just starting out or you’re a more experienced user of Grafana Alerting, learn more about the fundamentals and available features that ......
How to remove Symbolic Link
要移除软链接（symbolic link）在Linux中，你可以使用以下两种方法：使用rm命令或者使用unlink命令。 方法一：使用rm命令移除软链接 例如，如果你的软链接名称是mylink，你可以使用以下命令移除它： rm mylink 请注意，移除软链接不会影响软链接所指向的原始文件。 如果你 ......
[951] Understanding the pattern of "(.*?)" in Python's re package
In Python's regular expressions, (.*?) is a capturing group with a non-greedy quantifier. Let's break down the components: ( and ): Parentheses are us ......
Grafana学习（6）——Introduction to exemplars及Glossary
An exemplar is a specific trace representative of measurement taken in a given time interval. While metrics excel at giving you an aggregated view of ......
Grafana学习（5）——Introduction to histograms and heatmaps
A histogram is a graphical representation of the distribution of numerical data. It groups values into buckets (sometimes also called bins) and then c ......
Grafana学习（3）——Introduction to time series
Imagine you wanted to know how the temperature outside changes throughout the day. Once every hour, you’d check the thermometer and write down the tim ......
[949] Using re to extract unstructured tables of PDF files
Here is the problem, this unstructured table of a PDF file can not be extrcted as a table directly. We can only extract the whole texts of every page. ......
git SSL certificate problem: unable to get local issuer certificate
错误： git SSL certificate problem: unable to get local issuer certificate 这个问题是由于没有配置信任的服务器HTTPS验证。默认，cURL被设为不信任任何CAs，就是说，它不信任任何服务器验证。 解决方法 git config - ......
Welcome to YARP - 8.分布式跟踪
Welcome to YARP - 1.认识YARP并搭建反向代理服务 Welcome to YARP - 2.配置功能 2.1 - 配置文件（Configuration Files） 2.2 - 配置提供者（Configuration Providers） 2.3 - 配置过滤器（Configur ......
The United States adopts China's air pollution control measures
China has accumulated rich experience in air pollution control. When the United States faced a serious air pollution problem, it began to learn from C ......
UVA1396 Most Distant Point from the Sea 题解
Link UVA1396 Most Distant Point from the Sea Question 在大海的中央，有一个凸 \(n\) 边形的小岛，求出岛上离海边最远的一个点到海边的距离 Solution 二分答案，然后去验证是否有一个点，距离海的距离大于 \(mid\) 如何验证？ 把每条 ......
解决问题：Unable to start embedded container; nested exception is java.lang.NoSuchMethodError: org.apache.catalina.Context.addServletMapping(Ljava/l
因为有重复的jar 原因：springboot有自己的tomcat运行环境我们又在构件路径中添加了tomcat 解决方法：把项目构件路径中的tomcat给移除 ......
To100个供您免费学习编码的网站
100+学习的编程网站_国外篇 1. BitDegree BitDegree is a blockchain-powered learning platform offering various free and paid courses on crypto and digital skills, ......
Netherlands: Soil Protection Act to keep tulips beautiful
Soil pollution management in the Netherlands has three characteristics. Although the natural environment, population and development conditions of the ......
ffmpeg --- C++项目链接库接口时提示找不到定义undefined reference to
问题：使用CMake组织项目，库和CMakeLists.txt都检查过没有问题，但是在链接时就是提示找不到函数定义。 原因：项目使用的是C++，ffmpeg是C，直接include ffmpeg的头文件，因为C++和C对函数接口的解释不同，所以就找不到接口定义 正确用法： #include "std ......
The Redemption of the Moon
ZJOI2022 树 考虑一下容斥，钦定若干个节点满足要么都为叶子，要么只有一遍是叶子，另一边无所谓。 记 \(dp_{i,j,k}\) 表示前 \(i\) 个节点， \(T_1\) 中有 \(j\) 个 \(1\to i-1\) 的节点不是叶子，\(T_2\) 中有 \(k\) 个 \(i+1\t ......
Configuration error: VRRP definition must belong to an interface
lobal_defs { } vrrp_instance VI_1 { state MASTER #指定A节点为主节点 备用节点上设置为BACKUP即可 interface eth0 #绑定虚拟IP的网络接口 virtual_router_id 51 #VRRP组名，两个节点的设置必须一样，以指明各 ......
vue3_Extraneous non-props attributes (class) were passed to component but could not be automatically inherited because component renders fragment or text root nodes.
今天的开发中发现了这个问题 Extraneous non-props attributes (class) were passed to component but could not be automatically inherited because component renders frag ......
[946] Add a new row to a Pandas DataFrame
To add a new row to a Pandas DataFrame, we can use the append method or the loc indexer. Here are examples of both methods: Using append method: impor ......
Applying sewage charging system to deal with water pollution problem in Russia.
What is the sewage charging system? Although manufacturing has always been a key driving force for China's economic growth, it is also the root cause ......
The Application of River Chief System on Water Pollution in Britain
Water pollution is a global concern that affects the health and well-being of both humans and ecosystems. In Britain, despite efforts to address this ......
yolo v5 下载新数据集被防火墙proxy挡住，如何设置proxy. torch.hub.download_url_to_file问题；
当我们想运行yolo v5时候，我们发现有的时候，由于网关问题，proxy会成为阻碍。例如如下错误； 将代码如下修改，就能改好： 1. 原始代码： 2. 增加proxy设置： import urllib.request import torch.hub # 设置代理信息 proxy_support ......
Transferability of the Chinese Eco-environmental Protection Measure
London Convention and London ProtocolThe London Convention and London Protocol establish the global rules and standards for preventing, reducing, and ......
poj3017 Cut the Sequence
Cut the Sequence Time Limit: 2000MS Memory Limit: 131072K Total Submissions: 15419 Accepted: 4735 Description Given an integer sequence { an } of leng ......
sysbench 安装 postgres 测试环境（ Connection to database failed: SCRAM authentication requires libpq version 10 or above）
报错Connection to database failed: SCRAM authentication requires libpq version 10 or above的解决方案 1、下载安装包 https://gitee.com/xiaohai008/postgresql10-devel ......
[944] Extracting tables from a PDF in Python
To extract tables from a PDF in Python, we can use several libraries. One popular choice is the tabula-py library, which is a Python wrapper for Apach ......
Transferability of the Chinese Ocean Trash Protection Measure
PROBLEMS Researchers at The University of Western Australia have found that although the Indian Ocean is the world's biggest dumping ground for plasti ......
Learning to rank: from pairwise approach to listwise approach
目录概ListNetPermutation ProbabilityTop-k Probability Cao Z., Qin T., Liu T., Tsai M. and Li H. Learning to rank: from pairwise approach to listwise appr ......
The 2019 ICPC Asia Yinchuan Regional Contest
Preface 好久没有一场比赛做出两位数以上的题了，评价是写代码写得好爽 感觉这种时间比较古早的场的拿奖难度和现在比起来低好多的说，这场在现场如果有10题都能捧个亚军的杯了 但感觉主要是我们J题最后5分钟乱搞了个做法过了样例交上去就直接过了，后面看了其它人的做法好像和我们的都不一样的说，不知道是数 ......