Recent questions in Technique[技术]

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虚拟机安装Ubuntu 18.04.4 LTS server版本，IP设置报错如何解决？

问题描述我在云平台的虚拟机中安装Ubuntu 18.04.4 LTS server版本（制作镜像）在进入虚拟机之后，根据ubuntu的引导来安装配置IP的环节中，subnet填写的是 255.255.255.0/24 ，之后填写address，出现报错 ... 到类似的问题，但是没有解决扔个?? 麻烦大佬指点一下这一步骤到底应该怎么配置，谢谢围观！...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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373 views

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在线急C#代码转PHP 自己写了一个发现还是有出入

using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace study_test4 { class Program { static void Main( ... ReadLine(); //让控制台停在显示界面 } } }...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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如何生成excel列标号一样的序列 A B ... Z ... AA AB ... AAA AAB ...

我想输入n获取到具体某一列的标号有啥好的办法嘛...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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386 views

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file-loader和image-webpack-loader图片不显示

配置如下 module: { rules: [{ test: /.(gif|png|jpe?g|svg)$/i, exclude: path.resolve(__dirname, './src/assets/icons'), use: [ { loader: 'file- ... 也有相关的文件，但不知道为啥显示不了，而且是系统所有的图片都不能正常显示...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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mongodb update multiple Array elements using db.update()

I compiled 2 update queries by referring to related stackoverflow answers, however, it doesn't seem to work, query ... to active. Actual result: both queries update all records....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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306 views

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如何扩充已存在的全局声明

举个例子： // node_modules/@types/jest/index.d.ts declare const expect = () => { toBe: Function } // index.test.ts expect().toBe() 现在我希望扩充一个方法 expect().toWarnDev()，应该怎么做？...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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545 views

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vue-router如何实现类似于小程序路由跳转的reLaunch方法？

小程序reLaunch的方法关闭所有页面，打开到应用内的某个页面补充一下具体描述：就是类似于 relaunch 方法，在网页中的表现可以理解为清除掉之前的记录然后没办法回退到前一页或者前几页举例来说： A -> ... 就是还会有可能回到上一页的操作，所以我需要自己手动来选择是$router.go(-1)还是用类似于relaunch的这个方法 ...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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247 views

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node在服务端设置多个cookies?

方案一：缺点：不能设置过期时间,和domain res.setHeader('Set-Cookie', [ `uid=${uid}`, accessToken=${accessToken}`,`sdktoken=${ ... ); } setCookies('uid','11'); setCookies('accessToken','22');...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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253 views

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javascript - Is it possible to maintain two different font size in Chart.JS based on screen size?

In one of my projects, I use Chart.JS for some graph-related work. Where I use different font sizes for legend, ... can I adjust the font size on different devices for chart.js?...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer

为什么::before 的height高度不起怎用了？

我的布局是flex布局，使用了一个div的::before来做左右窗格调整大小的间隔线，我的间隔div的宽度与高度是对的。但是他的before元素的高度就不对，设置固定高度也不起作用。请问是哪里出了问题？黄度的是间隔div，中间那一段短的绿线是::before元素间隔div的CSS ::before的css 请问哪里出了问题？谢谢...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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288 views

1 answer

Flutter web-onGenerateRote and routes of MaterialApp's property

I am using routes property of MaterialApp Widget to define route name of each screen but I have a case ... use both of onGenerateRoute and routes as properties of MaterialApp...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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JAVA中一个类A既继承一个基类B，基类B本身实现了接口C，类A自己又实现了接口C，这样做的目的是什么呢？

比如Dubbo编解码Codec2涉及的类图如上所示，DubboCodec既继承ExchangeCodec，又实现了Codec2接口，然而ExchangeCodec本身的抽象基类AbstractCodec已经实现了Codec2接口 public class ... } 这样做的目的是什么呢？DubboCodec并没有对Codec2中的接口进行重写 ...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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731 views

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小程序能自定义“页面跳转动画”和“方向”吗？

需要实现的效果如下：查看效果这个效果看上去就是 swiper 实现的纵向滚动，只不过纵向的某些 slide 里面看上去又嵌套了可以横向滚动的 swiper（我不知道是否可以这么使用）我们需要实现的效果和这个有两点不同： 1 我们的每个 ... 果（如：淡入淡出），和子定义页面进入方向--效果中是可以上下左右滑动的；请问小程序中能做到这个效果吗？谢谢...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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294 views

1 answer

Docker and java sockets: Share data between containers

I'm coding a client-server service where my server is sending files to the client. In the following example, I tried ... as the host newclientSocket = new Socket("server", 4000)...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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562 views

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编译安装keepalived时，make报错对‘OPENSSL_init_ssl’未定义的引用

...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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268 views

1 answer

Django : Media Files not displayed in templates

I am trying to create a blog and to display user-uploaded images on a webpage. When I upload the image files using ... this anomaly. Anyone have an idea how to solve my problem ?...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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lisp - Doom Emacs: Don't want auto complete in Slime-REPL

This question is exactly opposite to the below question. Stack Overflow. When I use Slime inside Doom Emacs, I am not ... DOOM is using for auto-complete and how to disable it?...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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curl - Wordpress "CURLOPT_SSL_VERIFYHOST" turned off

I'm working on my wordpress site hosted by a domain (not working in my local environment) I got the error : "Fatal ... should I put it or should I change something in my cURL.php...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Can you make a http request and forge the Referer value to be some arbitrary website?

I'm new to HTTP protocol and I have limited experience in networking. I'm wondering which http request headers can ... , which other http request headers can be forged like this?...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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289 views

1 answer

python - How "execute_script" works in Selenium ? Injection of code directly in the page or not?

I need that execute_script doesn't inject js code directly in the source code of the page. I believe it's the case because ... a couple of hours...) Thanks and have agood day !...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer

android.database.sqlite.SQLiteException: near "AS": syntax error (code 1):

I'm using room database, and I have a query that is working fine on android version 21 and above, but the ... ThreadPoolExecutor.java:587) at java.lang.Thread.run(Thread.java:841)...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Values extraction from string pandas python?

I have a column in a dataframe that includes rows like the bellow string: parameter1: 104 parameter2: 98 % parameter3: 48 % parameter4: ... ----+------------+ Thank you in advance...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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xml - Need to split the single table by the column and convert into 3 tables

I need to split the columns of table and make it a new table on the converted xml. Input XML I'm having: <table frame= ... -2']"> <xsl:message>Test333</xsl:message> <xsl:copy-of...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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647 views

1 answer

echarts或者zrender绘制成熟度曲线图

可以使用echarts或者zrender绘制一个成熟度曲线图吗？例：找遍了百度和谷歌，没有相关案例。第一次提问，感谢大佬们?...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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292 views

1 answer

Plotting the UK election results using Python, Pandas and Geopandas

as an exercise I am trying to plot out the UK's general election results from 2017. I have used Pandas to manipulate ... ', figsize=(12,12)) [Expected output] [My Output]...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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392 views

1 answer

关于typescript类型检查

interface ClockConstructor { new (hour: number, minute: number): ClockInterface; } interface ClockInterface { tick(); } function ... 答么？？原文地址：https://typescript.bootcss.co......

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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422 views

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fixed定位的元素如何才能水平滚动？

如图，直接给box设置fixed定位，overflow-x:scroll不生效，有什么好的解决方法呀，谢谢 <div class="box"> <div class="item"></div> <div class ... left: 0; right: 0; overflow-x: scroll; outline: 1px solid black; }...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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646 views

1 answer

html - Cannot convert this string into an image

I ... ...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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