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Recent questions in Technique[技术]
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centos生产环境系统漏洞维护问题
由于是生产环境,每一个漏洞是否需要补,而且有的漏洞还需要重启生效,或者漏洞补上后是否影响系统的运行等? 想知道有经验的朋友是如何做的维护呢?...
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如何基于 Kafka 打造高可靠、高可用消息平台?
Kafka 是当前非常流行的一个消息系统,最初用作 LinkedIn 的活动流式数据和运营数据处理管道的基础 活动流式数据主要包括页面访问量PV 访问内容以及检索内容等 运营数据指的是服务器的性 ... .cn/article/... *《Kafka(三)Kafka的高可用与生产消费过程解析》 https://www.cnblogs.com/frank......
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github自动发布如何保存CNAME文件
GitHub不是有静态托管功能么, 就是github pages,然后可以自定义域名, 其实就是生成一个CNAME文件 然后像是有一些自动发布,比如Travis CI 和 Github Action 然后我我发现有一个共同的问题,自动发布是每次直接覆盖上次的文件, 也就是说,每次发布,CNAME都没有了 这个问题怎么解决...
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vue+vant 为什么在谷歌浏览器不能滚动,但是在火狐浏览器可以?
写了一个vue+vant的项目,写好了一个下滑无限加载文章列表的功能,然后在谷歌浏览器看确实可以实现,就去写其他的功能了 但是写了好多之后突然发现下滑滚动没有办法触发了,火狐浏览器看是可以的 谷歌: 火狐: 我回忆了一下中间这段时间写 ... 识很多不清楚 代码也不方便全展示出来,路过的大佬们能不能给一点点提示,指出可能的原因我自己再来排查一下,非常感谢!...
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vue+vant
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amazon web services - "Vue+S3+Lambda" architecture on Google Cloud
My single page website (VueJs) has only very few transactions, so I would like to implement it using ... my Vue-based website with some straight forward backend processes?...
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Jan 27, 2021
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amazon
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263
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如何去掉<figcaption>之前空白?
在写网页的时候发现浏览器会在figcaption和它前面的元素之间留出一段空白,源代码如下和页面显示效果如下所示 请问如何把这段空白去掉? <!doctype html> <html> <head> ... ="linux.png" /> <figcaption>Linux操作系统</figcaption> </figure> </body> </html>...
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198
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Magento 2.4.1: Exception #0 (ReflectionException): Class MagentoElasticsearchModelAdapterFieldMapperProductFieldMapper does not exist
Upgraded Magento 2.3 to 2.4.1 recently. Everything seems fine with the website. When trying to login to Magento admin ... ->run() called at [index.php:39] </pre>...
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Jan 27, 2021
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Magento
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275
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1
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excel - Aspose.Cells .Net C# 'Σ Values' shown in Row for pivot table
I'm using Aspose.Cells to create an Excel spreadsheet and adding a PivotTable into that spreadsheet but the 'Σ ... Values' field into the Columns area using code? Cheers Steve...
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Jan 27, 2021
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excel
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694
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往数组对象里面push一个新的对象时,判断如果有id相同的就覆盖这个对象
往数组对象里面push一个新的对象时,判断如果有id相同的就覆盖这个对象改怎么做,用了许多方法去重都是保留原来的对象 let arr = [{ id:'1', name:'a' },{ id:'2', name:'b' }] ... arr) 怎么让打印出来是如下的对象 { id:'1', name:'a' },{ id:'2', name:'c' }...
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Jan 27, 2021
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483
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插件连接mysql时提示 Plugin caching_sha2_password could not be loaded
我在windows 10上部署了一个单节点DolphinDB,现在碰到的问题是用mysql插件连接不了mysql 我的代码如下: loadPlugin(getHomeDir()+"/plugins/mysql/PluginMySQL.txt" ... .dll' ((nullptr):3306), with errno: 2059 请问该怎么解决?...
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Jan 27, 2021
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插件连接mysql时提示
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290
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Image Resolution Name for 512 x 768
My Question might be very basic as I am new to the image and video processing community. I know that the image ... internet but was not able to find any matching results. Thanks...
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Jan 27, 2021
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Image
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176
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Spring WebSocket报MessageDeliveryException?
SpringBoot+WebSocket+Eureka+Gateway 使用SimpMessagingTemplate.convertAndSend抛出 ... .handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechan...
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Jan 27, 2021
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Spring
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144
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Excel formula to count duplicates as one
I am trying to create a formula which will count all rows (duplicates as one) based on a value in another column. ... p1 Joe Bloggs p3 John Bloggs p1 Mary Bloggs p1 Alan Bloggs...
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Jan 27, 2021
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Excel
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votes
407
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scikit learn - Translate Python export_text decision rules to SAS IF THEN DO; END code
I am attempting to translate Python's sklearn.tree export_text output into SAS conditions. There has been a solution given in ... THEN DO; PREDICTED_VALUE = 2.0; end; ELSE DO;...
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Jan 27, 2021
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71.8m
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scikit
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votes
146
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php - the role i created for wordpress doesn't show my plugin
I have created a custom role for wordpress, but I don't know a method to give it permissions to access my ... not visible and therefore it is not possible to access the settings...
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Jan 27, 2021
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php
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470
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mysqldump的哪个参数可以做到导入时终端不显示输出?
在写脚本的是时候用mysqldump导入sql的时候时会在屏幕上输出整个过程。请教想做到不输出有没有什么参数可以控制呢?...
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Jan 27, 2021
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71.8m
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0
votes
166
views
1
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javascript - how to put hello component under navbar? particles taking whole screen
I dont know why particles is taking the whole screen, I cant put that hello text right under the navbar. Here's code for this ... ,0.8981967787114846) 0%, rgba(0,16,92,1) 100%); }...
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Jan 27, 2021
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javascript
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votes
412
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bash - Why does Rsync of tree structure into root break filesystem on Raspberry Pi?
I have developed an application which I am trying to install on raspberry pi via a script. The directory structure I have is ... due to no init. Does anyone know what's going on?...
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Jan 27, 2021
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bash
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262
views
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sql - Solved-- Why columns value change into NULL when try to update only one column?
This is my table which I created in sql server... CREATE TABLE [dbo].[Addresses_Table]( [AddressID] [int] IDENTITY(1,1) ... of it. Please help me out to solve this problem.......
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Jan 27, 2021
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sql
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234
views
1
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2020年推荐免费图床
请问大神有甚么推荐的免费图床吗? 或是每个月费一点费用的,预算每个月20$ (我很穷 T_T) 或是有推荐自架图床方式。 更新 : 请问 github 当图床建议吗? 担心被墙...
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Jan 27, 2021
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votes
365
views
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数据库连接url后缀太长了
在学习项目开发中,经常提示数据库报错,可能是时区错误,可能是编码错误, 查到的解决办法都是加入后缀信息 不知不觉就变成了b.url=jdbc:mysql://localhost:3306/test\_mybatis?characterEncoding=utf- ... 符合服务器的mysql数据库吧 是要统一对数据库进行时区设置,还是就是要使用常常的后缀 ...
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349
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请问这种样式如何实现CSS
...
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Jan 27, 2021
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node crypto解密小程序手机号报错是为什么?
错误信息:(每次都说第一次报错,第二次在执行就好了好神奇) Error: error:06065064:digital envelope routines:EVP_DecryptFinal_ex:bad ... server/node_modules/@eggjs/router/node_modules/koa-compose/index.js:44:32)...
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node
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1.1k
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react+ts 如何设置组件默认值?
react+ts 如何设置组件默认值? 比说我的 width 当外面不传的时候想设置位100 ` import React, { Component } from 'react' import './card.scss' ... </div> {this.props.children} </div> ) } } export default Card `...
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react+ts
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flutter - Record and Play and play a local audio file in one page
I want to be able to present the user, on the same page, with a simple recorder which plays the recording back and an audio ... '), ), body: makeBody(), ); } }enter code here...
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flutter
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647
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css - Header elements alignment
I'm trying to replicate this header: https://minelligroup.com/ on this website that is related: https://blog.minelligroup.com/ ... but I can't solve it. Thank you for your help....
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Jan 27, 2021
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css
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634
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python - django-allauth: Confirmation Email (with Token) for changing primary mail address
I am currently testing django-allauth for one of my applications. So far it seems to be a very good third party ... : Adding a new email addresses requires an password input first....
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Jan 27, 2021
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python
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VUE 网络请求在 created 还是 beforeMounte ?
vue不涉及的页面加载的网络请求是放在 created 还是 beforeMounte? 为啥?从结果看,好像两个都可以...
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Jan 27, 2021
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VUE
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