learniing doing by
AT_abc254_h [ABC254Ex] Multiply or Divide by 2 题解
打篇题解巩固一下。 题意 给你两个集合 \(A\) 和 \(B\)，对于任意 \(A\) 集合中的元素，我们可以进行 \(2\) 种操作：\(a_i\gets \left\lfloor\frac{a_i}{2}\right\rfloor\) 或 \(a_i\gets 2\times a_i\)。问最 ......
The name org.freedesktop.secrets was not provided by any .service files 报错问题
在搭建cicd docker 靶场的时候出现这个问题，由于是第一次遇到，就想记录下来 通过各种搜索资料搜索 发现只要安装如下包就没问题 1 apt -y install gnome-keyring 这样做之后，一切都可以 这样就可以了 ......
Go - Change What Is Being Logged by the Standard Logger
Problem: You want to change what the standard logger logs. Solution: Use the SetFlags function to set flags and add fields to each log line. The defau ......
显示菜鸟教程的底部文字By.CSS_SELECTOR
cess select 不需要滚动到底部 直接可以获得 test_loc='[href="//www.runoob.com/web/web-buildingprimer.html"]>h4' # 显示底部的文字 # [href="//www.runoob.com/web/web-buildingpr ......
The Out-of-Memory Syndrome, or: Why Do I Still Need a Pagefile?
The Out-of-Memory Syndrome, or: Why Do I Still Need a Pagefile? July 19, 2016 aziusMemory Management 13 Comments Windows’ memory management—specifical ......
Caused by: com.mysql.cj.jdbc.exceptions.MySQLTransactionRollbackException: Lock wait timeout exceeded; try restarting transaction
153392398 RUNNING 2023-08-23 09:10:09 6 397413 0 2 4 1136 2 2 0 REPEATABLE READ 1 1 0 0 0 0 328854561014064 RUNNING 2023-08-23 09:19:03 0 397493 0 0 0 ......
CF1447 Codeforces Round 683 (Div. 2, by Meet IT)
CF1447A Add Candies 可以将操作看做将 \(a_i\) 减 \(i\)，然后第 \(i\) 次操作 \(i\) 就是合法的。 #include<iostream> #include<cstdio> using namespace std; int T; int n; void so ......
CF1020 Codeforces Round 503 (by SIS, Div. 2)
CF1020A New Building for SIS 分类讨论 \(a,b\) 两个端点的几种情况就好了，特判 \(t_a=t_b\) 的情况。 #include<iostream> #include<cstdio> #include<cmath> #include<algorithm> usi ......
Docker|--E: gnupg, gnupg2 and gnupg1 do not seem to be installed, but one of them is required for this operation
错误 apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 871920D1991BC93C E: gnupg, gnupg2 and gnupg1 do not seem to be installed, but one of them ......
By.CSS_SELECTOR 定位查找元素 并输出文本
代码 定位到元素后打印出文字 def get_text(self): element=driver.find_element(By.CSS_SELECTOR, "#sidebar_bh [href*='vip']") print(element.text) ......
By.CSS_SELECTOR 伪类选取器
html <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>CSS1</title> </head> <body> <div id='div1'> <div id='div2' > <P>这是段落1</p> < ......
By.CSS_SELECTOR 祖宗和后代用空格隔开
element = driver.find_element(By.CSS_SELECTOR, "#div2 input[type='text']") element.send_keys('myname') ......
nginx访问报错“maximum number of descriptors supported by select() is 1024 while connecting to upstream”问题的处理
1、问题背景 项目：一个人力的系统，主要用于考勤打卡 环境：windows server nginx版本：1.22 问题说明：当早上访问人数增加的时候，就会出现nginx的异常 nginx的后台报错日志： maximum number of descriptors supported by sele ......
By.CSS_SELECTOR
# 导包 from selenium import webdriver from selenium.webdriver.common.by import By from time import sleep from selenium.webdriver.support.ui import WebDr ......
[NIPS 2021]Do Transformers Really Perform Bad for Graph Representation
[NIPS 2021]Do Transformers Really Perform Bad for Graph Representation 微软提出的graph transformer，名叫Graphormer Transformer 通常，transformer layer有一个self-att ......
数据库中order by 依照指定顺序排序如何操作
SQL学习之使用order by 依照指定顺序排序或自己定义顺序排序 我们通常须要依据客户需求对于查询出来的结果给客户提供自己定义的排序方式，那么我们通常sql须要实现方式都有哪些，參考很多其它资料总结例如以下： 一、假设我们仅仅是对于在某个程序中的应用是须要依照例如以下的方式排序，我们仅仅需在SQ ......
433_Word批注该咋用——Comment by wangxianyang
这是一篇原发布于2020-02-09 14:07:00得益小站的文章，备份在此处。 前言 小米10辣鸡——Comment by wangxianyang（手动滑稽） 作为一个合格的营销号干货号，批注的使用可谓是一门必修课。 但不当的使用，不仅体现了自己的不专业，更可能给自己的公司、企业带来不必要麻烦 ......
1055 - Expression #1 of ORDER BY clause is not in GROUP BY clause and contains nonaggregated column
博客园 首页 新随笔 联系 管理 订阅 随笔- 111 文章- 1 评论- 3 阅读- 17万 1055 - Expression #1 of ORDER BY clause is not in GROUP BY clause and contains nonaggregated column 'i ......
Consider using `allow_partial_search_results` setting to by
Elasticsearch data node 重啟導致 sharding 找不到家 今天遇到單位同仁重啟 Elasticsearch data node 後發現 Cluster 狀態變成 Red 的狀況，這篇記錄遇到這個問題時該怎麼處理 會遇到這個問題通常是「遺失的 Data node」大於「in ......
Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregated column
MySQL有any_value(field)函数，他主要的作用就是抑制ONLY_FULL_GROUP_BY值被拒绝 官方有介绍，地址：https://dev.mysql.com/doc/refman/5.7/en/miscellaneous-functions.html#function_any-v ......
Java连接MSSQL2012数据报TLS10 is not accepted by client preferences [TLS13, TLS12]错误解决办法
这一问题好像是因为Java新版本禁用了些老的加密算法引起的，解决方法为修改 java.security文件里的配置信息即可。 我用的是Java21，在安装目录 Java\jdk-21\conf\security 下找到 java.security文件，用记事本打开，搜索TLSv1，大概在752行的位 ......
Some Recent Thoughts Wrritten By NiuJiawen-2019141490165
Recently, many students who are junior year are taking part in interviews for exempt students. Some have obtained satisfactory offers, whereas, others ......
git pull代码时提示：Your local changes to the following files would be overwritten by merge
内容来自对 chatgpt 的咨询 这个错误提示意味着你在执行git pull命令时，Git发现你当前工作目录中的一些文件与远程仓库的变更产生了冲突。这可能是因为你在本地修改了一些文件，而远程仓库也有更新。Git不允许在有未提交的本地修改时直接执行git pull，以防止可能的冲突。 要解决这个问题 ......
话题1：why do some young people keep moving
why do some young people keep moving eg: well I think fist of all young people compeare to older generation has higher level of mobility,because they ......
Oracle中start with connect by prior 使用方法
一、语法 { CONNECT BY [ NOCYCLE ] condition [AND condition]... [ START WITH condition ] | START WITH condition CONNECT BY [ NOCYCLE ] condition [AND condi ......
Max retries exceeded with url: / (Caused by NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x000001A73833FD00>: Failed to establish a new connection: [WinError 10060]
报错 Max retries exceeded with url: / (Caused by NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x000001A73833FD00>: Failed to establ ......
[884] How to generate automated Word documents by Python
ref: python-docx ref: How to Generate Automated Word Documents with Python ref: Automating Word Documents from Excel Using Python | ‘docxtpl’ Tutorial ......
org/springframework/boot/maven/RepackageMojo has been compiled by a more recent version of the Java
项目场景：项目中执行clean，再执行install时报错，错误如下 org/springframework/boot/maven/RepackageMojo has been compiled by a more recent version of the Java Runtime (class ......
2023数据采集与融合技术实践作业一_by liyishui
作业1 要求 用requests和BeautifulSoup库方法定向爬取给定网址（http://www.shanghairanking.cn/rankings/bcur/2020 ）的数据，屏幕打印爬取的大学排名信息。 输出信息 Code from bs4 import BeautifulSoup ......