morning four the in

for...in 循环和 for...of 循环的区别

JavaScript 中的 `for...in` 循环和 `for...of` 循环是两种不同的迭代方式,用于遍历数据结构中的元素。它们具有一些区别: 1. `for...in` 循环: - 用于遍历对象的可枚举属性(包括原型链上的属性)。 - 迭代的是键(属性名),而非值。 - 不保证迭代顺序,因 ......
for in of

The Third Letter带权并查集

Problem - 1850H - Codeforces 题意是给你a,b,c说明a在b后面c个单位(c<0就是在左边),每个位置只能有一个数,一共有n个位置,告诉你m个关系,问是否符合条件 我们可以设置d[x]表示x到它的最早的父节点的距离,然后如果两个数父节点一样,那么c!=d[a]-d[b]时 ......
Letter Third The

Python data hiding All In One

Python data hiding All In One private data / private method ⚠️ 约定:class 里面使用单个下划线,表示私有的属性或私有的方法,实际上在 class 外面是可以访问的 ......
Python hiding data All One

[USACO13DEC] The Bessie Shuffle S

# [USACO13DEC] The Bessie Shuffle S [TOC] [P3095 [USACO13DEC\] The Bessie Shuffle S - 洛谷 | 计算机科学教育新生态 (luogu.com.cn)](https://www.luogu.com.cn/problem ......
Shuffle Bessie USACO DEC The

The Rising Importance of Automotive Diagnostic Tools in the Repair Industry

The Rising Importance of Automotive Diagnostic Tools in the Repair IndustryIn the ever-evolving automotive world, continuous advancements in technolog ......

for for…in for…of

for文for (let i = 0; i < 7; i++) { console.log(i);} for...of文const array1 = ['a', 'b', 'c']; for (const element of array1) { console.log(element);} for ......
for

celery 启动显示警告信息“...whether broker connection retries are made during startup in Celery 6.0 and above...”

> 博客地址:https://www.cnblogs.com/zylyehuo/ * ![](https://img2023.cnblogs.com/blog/3071480/202307/3071480-20230726163256620-640910610.png) ```bash 在setti ......
connection whether retries startup celery

43. CF-Walk the Runway

[Walk the Runway](https://codeforces.com/contest/1826/problem/E) 题意有点绕,在这里先简单解释一下: 有 $n$ 个人和 $m$ 个城市,每个人都有一个贡献值 $p_i$,每个人对每个城市有一个打分 $r_{i,j}$。现在需要选出 $ ......
CF-Walk Runway Walk the 43

MySQL中的IN 和 EXISTS

### IN 和 EXISTS 是 MySQL 中用于查询的两个关键字,它们有不同的用途和功能。 ### IN: IN 关键字用于在 WHERE 子句中进行多个值的匹配,它用于检查某个字段的值是否属于指定的一组值。语法如下: ```sql SELECT column1, column2, ... F ......
EXISTS MySQL

【Java异常】Variable used in lambda expression should be final or effectively final

https://blog.csdn.net/weixin_44299027/article/details/117333667 *lambda表达式中使用的变量应该是final或者有效的final*,也就是说,lambda 表达式只能引用标记了 final 的外层局部变量,这就是说不能在 lambd ......
final effectively expression Variable lambda

Schema-validation: wrong column type encountered in column [NAME] in table [BUS]; found [nvarchar2 (Types#NVARCHAR)], but expecting [varchar2(255 char) (Types#VARCHAR)]

属性的类型出错 NVARCHAR 和 VARCHAR 不同 @Column(name = "NAME", columnDefinition = "nvarchar2(50)") private String name; ......

openssl x509 -noout -text -in <file>

该命令用于解析和显示X.509证书的详细信息。具体参数的含义如下: -noout:不输出证书的原始内容,只显示解析后的信息。 -text:以文本形式显示证书的详细信息。 -in :指定要解析的证书文件。 执行该命令后,将会显示证书的各种信息,包括证书的版本、序列号、签名算法、颁发者、有效期、公钥信息 ......
openssl noout file x509 text

ERROR: database "server" is being accessed by other users DETAIL: There is 1 other session using the database.

根据错误消息,删除数据库 "server" 失败,原因是有其他用户的会话正在使用该数据库。在 PostgreSQL 中,如果有其他会话正在访问或连接到数据库,那么将无法删除该数据库。 为了成功删除数据库,需要确保没有其他会话正在使用该数据库。 以下是可能的解决方法: 1. 断开所有连接:在尝试删除数 ......
database other quot accessed session

How to make sqlplus output appear in one line

## How to make sqlplus output appear in one line ``` https://dba.stackexchange.com/questions/54149/how-to-make-sqlplus-output-appear-in-one-line # SQL ......
sqlplus appear output make line

React Native热更新报错:The "CFBundleShortVersionString" key in the "ios/***/Info.plist" file needs to specify a valid semver string

React Native项目集成了CodePush热更新,在用cpcn-client工具发布新版本时,在日志栏中打印了如下错误: Detecting ios app version: The "CFBundleShortVersionString" key in the "ios/xxx/Info. ......

URL.canParse API All In One

# URL.canParse API All In One ```js // Proper usage if (URL.canParse('https://davidwalsh.name/pornhub-interview')) { const parsed = new URL('https://d ......
canParse URL API All One

ERROR: Unexpected bus error encountered in worker. This might be caused by insufficient shared memory (shm).

# 报错 ``` ERROR: Unexpected bus error encountered in worker. This might be caused by insufficient shared memory (shm). ``` # 问题原因 在 `PyTorch` 中使用 `Data ......

一些想法(in 2023.7.22)

# 一些想法 #### _第一篇blog。虽然有博客好久了,但是一直懒得动笔,第一篇,写一些另类的东西。_ #### - 今天晚上散步回来,被一只小奶狗撞见了。深夜旁边没有人,它应该也是才被遗弃的,不分人就直接跟着人又追又跑。从大马路上一直追到旁边城市绿化公共区域深处。虽然很小心,但是我的脚还是夹了 ......
想法 2023 22

APP - Appium-Inspector连接报错Failed to create session, The requested resource could not be found

APP - Appium-Inspector连接报错Failed to create session, The requested resource could not be found appium版本:Appium-Server-GUI-windows-1.22.3-4 Appium-Inspe ......

RuntimeWarning: More than 20 figures have been opened. Figures created through the pyplot interface

问题描述 使用 matplotlib 绘制多幅图出现如下问题 RuntimeWarning: More than 20 figures have been opened. Figures created through the pyplot interface (matplotlib.pyplot. ......

How to Restore ASM Based OCR when OCR backup is located in ASM diskgroup? (Doc ID 2569847.1)

In this Document Goal Solution References APPLIES TO: Oracle Database - Enterprise Edition - Version 12.2.0.1 and later Information in this document a ......
ASM 2569847.1 OCR diskgroup 2569847

How to Restore ASM Based OCR After Complete Loss of the CRS Diskgroup on Linux/Unix Systems (Doc ID 1062983.1)

In this Document Goal Solution References APPLIES TO: Oracle Database - Enterprise Edition - Version 11.2.0.1.0 and later Oracle Database Cloud Schema ......
1062983.1 Diskgroup Complete 1062983 Restore

ERROR in [eslint]

第一步:打开vue.config.js,然后在后面添加 lintOnSave: false 第二步:再次运行 npm run serve就可以了 ......
eslint ERROR in

/tmp/ccVJLYWf.s:589: Error: selected processor does not support `cpsid i' in ARM mode 解决办法

linux20@ubuntu:~/Desktop/new$ arm-none-eabi-gcc -c ec_main.c /tmp/ccVJLYWf.s: Assembler messages:/tmp/ccVJLYWf.s:589: Error: selected processor does n ......
processor ccVJLYWf selected support 办法

Python的OCR工具pytesseract解决TesseractNotFoundError: tesseract is not installed or it's not in your PATH. See README file for more information环境变量问题

pytesseract是基于Python的OCR工具, 底层使用的是Google的Tesseract-OCR 引擎,支持识别图片中的文字,支持jpeg, png, gif, bmp, tiff等图片格式。 如何安装使用请看我的上一篇。 在使用pytesseract打开图片是遇到没有找到文件解决pyt ......

题解 P2903 【[USACO08MAR]The Loathesome Hay Baler S】

posted on 2021-05-03 20:50:49 | under 题解 | [source](https://www.luogu.com.cn/blog/_post/331434) 首先输入,记录一下哪个齿轮的位置在 $(0,0)$,哪个在 $(x_t,y_t)$。 接着,为了避免多次判断 ......
题解 Loathesome P2903 Baler USACO

CF1466I The Riddle of the Sphinx

### 基本思路 明示了在二进制下考虑问题,我们大体的思路就是从高往低依次确定最大的数二进制下每一位上的值。 以下所述的「前缀」均指一个二进制数从高位到低位的一部分,一个元素的「前 $k$ 位」表示二进制从高位到低位的前 $k$ 位,$res$ 表示当前记录的最大前缀的长度。 先看看操作能干嘛,一是 ......
Riddle Sphinx 1466I 1466 The

Authentication in asp.net core异常汇总

services.AddAuthentication("Microsoft") .AddMicrosoftIdentityWebApp(Configuration,"AzureAd","Microsoft"); InvalidOperationException: No sign-out authe ......
Authentication core asp net in

what is the embeddings in AI?

What are embeddings? Text embeddings are a natural language processing (NLP) technique that converts text into numerical vectors. Embeddings capture s ......
embeddings what the is AI

c# - "Too many characters in character literal error"

https://www.coder.work/article/232348 我在处理一段代码时遇到错误: Too many characters in character literal error 使用 C# 和 switch 语句遍历字符串缓冲区并读取标记,但在这一行中出现错误: case '& ......
quot characters character literal error