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1.4k views

1 answer

reactjs - Heroku "Could not find a required file. Name: index.html"

I have been running into this error "Could not find a required file. Name: index.html" when I attempt to deploy my ... a youtube tutorial and that did not seem to work either....

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

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381 views

1 answer

express - Why is node.js sending the entire public folder, When only root index.html specified?

So I am making a node.js server for my webpage. And after having added root route that sends the index.html it also sends ... log(`Listening at port http://localhost:${port}`); })...

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

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865 views

1 answer

Electron 企业微信开发，内嵌页面无法获取企业微信登录码？

最近在做一个electron的应用，但是应用需要跟企业微信对接，需要扫码登录。我是用一个iframe 来获取企业微信码，通过配置 redirect_url，测试环境可以正常登，但是我本地的localhost跟配置的 redirect 域名不一致，无法正确得到码。那怎么让我本地的localhost映射到 redirect_url 一样的域名呢？...

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

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1.1k views

1 answer

ethereum - Solidity constructor declaration and statements between function signature and visibility modifieres

I just came across this in a Solidity contract, I don't understand it. Specifically I don't understand how ... = _verifier; operator = _operator; denomination = _denomination; }...

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

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246 views

1 answer

mit scratch - Why is my game not working? My character doesn't move when I coded it correct

I am coding a robot but it doesn't move in the correct direction! I want it to move left but it moves right. Why is my ... doesn't move when I coded it correct. Here's my Coding :D...

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

0 votes

213 views

1 answer

js audio.pause()有时候无效

打开页面的时候循环播放一个mp3文件，调用接口成功后audio.pause()，但是有时候无效 var url = warningMp3 vm.audio = new Audio(url); vm.audio.src = url; vm. ... if(res.ErrCode == 0){ vm.audio.pause();//暂停语音播放 } 有时候无效...

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

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234 views

1 answer

php - Parameter in the src of the Facebook images

I looked at the src of a Facebook image and I wonder what the settings send after the (?) src="https://scontent- ... for? Who exploits them PHP or the server? Thanks for your help...

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

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576 views

1 answer

vue中添加高德地图，但是地图未显示，切有警告，求大佬指导

...

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

0 votes

381 views

1 answer

python - How do I display videos in template from inline formset?

I have a form that includes an inline formset and I am having trouble displaying the videos in the template that were ... profile.file_uploads.video.url }}" controls></video></p>...

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

0 votes

219 views

1 answer

python - Simplify list comprehension when a call to function returning a tuple is necessary

I have the following function: def get_cofactors_matrix(self) -> 'Matrix': """Returns the cofactors matrix""" ... result.append(result_line) What would be a better expression ?...

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

0 votes

291 views

1 answer

reactjs - VS Code eslint underlining wrong errors

Problem eslint is underlining errors incorrectly in my React Native files. Here is one example of a file that has incorrect ... . Does anyone have any advice on how to fix this?...

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

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1.7k views

1 answer

ts react 类型报错

定义处 interface taskStatusListType { value: number label: string } const taskStatusList: taskStatusListType[] = [ { value: 0, label: '进行中' } ... )) .label }, }, 报错截图：如何写，vscode才不会飘红...

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

0 votes

472 views

1 answer

如何获取字典一组键值的最后一个元素

在DolphinDB database中，定义了一个字典，它的值是一个vector，比如下面的字典d： d=dict(STRING,ANY) d[`600001.SH]=10 11 12 d[`600002.SH]=61 62 63 对于这个 ... (最后一个元素，比如600001.SH的12，600002.SH的63)组成，请问有没有简单的实现方法？...

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

0 votes

631 views

1 answer

usage of ref attribute on HTML string - ReactJs/Javascript

I want to use ref attribute on a conditional span element that generates based on reactJs props. this span element is ... how to define the attribute ref on a JSX string? thx...

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

0 votes

366 views

1 answer

vue组件怎么才能根据vuex state的值的改变来进行刷新

一个后台配置的项目，现在有7个路由级的组件(a,b,c,d,e,f,g)，每个界面对应左侧的菜单栏，每个组件都调了几个接口，这些接口有一个入参commoncode是可变的，所以把commoncode放到 vuex state里面 ... () 除了在每个组件里监听commoncode，然后执行created()里面的代码这个方法，有没有更为简洁的方法？...

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

0 votes

187 views

1 answer

同样使用js调用vue为什么内嵌可以，调用就不行呢？

...

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

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413 views

1 answer

macos - How to prevent "this webpage has reloaded because it is using significant memory"

In OS 11 Big Sur, I often get "this webpage has reloaded because it is using significant memory" while watching ... , any advice on how to stop this from automatically happening?...

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

0 votes

213 views

1 answer

php - how can we append two attributes by one function?

I want to add two appends variables in laravel model. by using one getVariableNameAttribute() function. Is this possible? MY motto ... ('like_id',$this->id)->first()->dislikes; }}...

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

0 votes

556 views

1 answer

guzzle HTTP客户端如何在POST的时候携带微信的2个pem证书？

//两个证书（必填，请求需要双向证书） $zs1="/apiclient_cert.pem"; $zs2="/apiclient_key.pem"; curl_setopt($ch,CURLOPT_SSLCERT,$zs1); curl_setopt($ch, ... ,现在是打算用guzzle 这个客户端该如何携带上面两个证书呢？...

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

0 votes

165 views

1 answer

javascript - passing form data to another HTML page

I have two HTML pages: form.html and display.html. In form.html, there is a form: <form action="display. ... JavaScript function show() gets the serialNumber from the first HTML?...

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

0 votes

283 views

1 answer

I can't get all the <a> tags in selenium python

I need to get all the text inside the <a> tags, but I can get only the text of the first <a> tag. Here is my code: ... a> </div> what I expected is 2, 3 but I get only 2....

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

0 votes

351 views

1 answer

_ Error = (*_Error)(nil) 这个是怎么理解？

在GitHub上看到的代码，如下： var ( _ Error = (*_Error)(nil) _ fmt.Stringer = (*_Error)(nil) ) 说明： Error是一个interface _Error是一个struct 判断 ... 该是这个写法吧 var _ Error = (*_Error){} 加(nil)是什么意思呢？？...

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

0 votes

693 views

1 answer

visual studio - C++/CLI project, wraper for C++ shared library, get error

I am trying to use Open3d as C++ in managed code C#. I managed to make a dynamic shared library of open3d as ... is there missing parts in my method to follow the Link solution?...

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

0 votes

386 views

1 answer

指针的意义何在？有哪些用途？

我们知道C++中，指针可保存内存地址。 int a = 10; int * p = &a; 但是意义何在？也就是说指针有哪些用途？如果没有指针能做到吗？...

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

0 votes

391 views

1 answer

database - How to obtain cmip6 projected temperature data?

I would like to get projected temperature data under various climate scenarios till 2100 for different European countries. I ... deal with them. I would really appreciate any help....

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

0 votes

289 views

1 answer

VX的CODE 可以拿来授权其他业务吗

VX的CODE 可以拿来授权其他业务吗...

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

0 votes

387 views

1 answer

husky uninstalling Git hooks done

现在npm 下包总是出现这个提示,然后包也没下下来,求解...

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

0 votes

359 views

1 answer

sql - Migrating Postgis database from one desktop to another fails with backup and restore feature

I've received multiple backup files from databases which are present on a localhost server from another desktop (not ... ignore it. Any tips or possible solutions are appreciated....

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

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