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python - What is the best way to run a web app using gunicorn at certain hours of the day?

I have a little dashboard that runs with python - dash and I've already deployed it successfully in production using ... end of the day after launching it with noHup? Thanks!...

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

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776 views

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vb.net - Visual Basic needs single SQL data call for multiple dropdowns with same data

I'm trying to create a Visual Basic page that has multiple dropdown with the some set of data, but the data is called ... be nice, but it seems a little slow bringing up the page....

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

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935 views

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typescript - How to implement Google Analytics Offline tracking Electron based application?

I am working on a Electron based application in which I need to implement GA with offline tracking capabilities. We have ... clarity. is there any straight forward way to do it?...

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

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836 views

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useEffect依赖多个

const {id, name, visible} = this.props useEffect(() => { const getData = async ()=>{ const res = await fetch({id, name}); } getData( ... 请求三次接口，这个怎么解决？如果只依赖visible，lint会报错，提示缺少依赖项...

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

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for循环与递归之间的嵌套调用问题，如何跳出递归链

如图代码：任务A 任务B 任务C C的前置任务是B, B的前置任务是A，如果把A的前置任务设置为C，那么就进入了一个死循环前置任务的意思是：要想启动当前任务，必须处理掉在它之前的任务，形成一条上下级的任务链现在，我 ... 那么直接终止这个for循环，而不是只是终止了当前递归层级，还会去执行下一个递归下面是Debug图大佬们，这要怎么解决啊...

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

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914 views

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python - Pandas find values from another data frame

I have two data frames that i would like to combine. The first one is ~3000 rows long has 3 columns: source and a ... Source Target volume source 1 target 1 3 source 2 target 2 1...

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

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1.1k views

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c++ cli - Passing a CLI/C++ array to a C function

I need to call C functions from C#. I have created a C++/CLI wrapper to load the DLL and call the relevant functions ... call the C function. Please point me what I am doing wrong....

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

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问个系统集成方面的问题【智能电视机】

客户有个需求：一个菜市场中有不同的摊位，需要给每个摊位安装一台显示器来显示当前摊位的经营户信息与商品价格（初步考虑使用智能电视机来充当显示器）这些电视机通过WIFI链接到市场中的无线网络，每台电视机开机后直接启动系统自带的浏览器并访 ... 不适用电视机，适用集成微型电脑的显示器（其实就是一体机）可行吗？ 3.除了上面的解决方案，还有其他的解决办法吗？...

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

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1.0k views

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社交应用中的双双匹配数据设计

背景社交用户的双双匹配男方A，女方B，通过基本信息和异性要求，如年龄，收入等，可以得出一个双方的匹配分值匹配表结构如下男方女方男方匹配女方分数女方匹配男方分数 A B 99 89 已知问题现在用户量10W，匹配表数据 ... 速度而已希望解决 1.不知道有没有架构或者体系，能够解决以上问题 2.考虑过MYSQL的空间索引，但是不知道如何结合...

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

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1.2k views

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webpack5 的 SplitChunksPlugin 插件无法将 js 分离问题

官方提到： SplitChunksPlugin 插件可以将公共的依赖模块提取到已有的入口 chunk 中，或者提取到一个新生成的 chunk 我写了一个 demo 项目，目录结构如下： webpack.config.js ... 的 console.log(123) 明显执行了两次这是因为 print.js 不是 node_modules 里导致的吗？...

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

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scala - getting akka dead letters when using pipeTo between two actors

i have a use case in which i have a actor hierarchy parent -> childABC -> workerchild Now the worker child works and send its ... like this? if so what should i do to make it work...

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

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1.5k views

1 answer

antd form表单实例不存在getFieldDecorator？

如题，看网上大部分文章都是说const { getFieldDecorator } = this.props.form，也就是说getFieldDecorator是form实例上的方法但是当我使用 ... (); const { getFieldDecorator } = form的时候，报错getFieldDecorator是undefined ...

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

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dataframe - How to import Stata labels into R

I'm currently trying to export data from Stata to excel R. Everything works as expected except for Variables with a label are ... class = c("tbl_df", "tbl", "data.frame"))...

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

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2.3k views

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nestjs如何在post接口中转换Boolean类型参数？

1.post表单提交格式是x-www-form-urlencoded，参数到了服务端都转成了字符串格式在dto中使用@Type(() => Boolean)，boolean类型传过来true或false都被当成了字符串处理 ... 像只能在dto中使用class-transformer手写@Type 和@Transform来实现有没有简单方便一点的方案？...

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

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2.5k views

1 answer

关于MVVM和MVC的一个疑问

已知vue/react/angular都是当前主流的MVVM框架，然后根据我目前的搜索和认知： MVC是指：数据--->控制器---->视图然后这个控制器的概念应该是相对于服务端说的吧？就是写一套服务端的业务逻辑，去处理视图所需要的数 ... 数据后渲染到视图层上所以MVVM是不是其实是 MVCVM ？请问下我上面有没有理解错的，帮我分析一下，谢谢！...

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

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IDEA提示错误 java.lang.ClassNotFoundException: com.mysql.cj.jdbc？

java.lang.ClassNotFoundException: com.mysql.cj.jdbc at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1365) at org. ... 改数据库内容，但查询就给我报错枯了...

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

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3.5k views

1 answer

angular - how to use templateOptions.options for ngx-formly multicheckbox field

Im my Angular application, I need set options of multicheckbox field from a function inside my app (component or service). ... to bind with a component or shared service method } }...

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3.5k views

1 answer

现在很多像J2PaaS这种的低代码平台，他们能解决开发的什么问题

最近关注到一个消息，低代码相关的技术，这类开发工具和开发平台使用的人越来越多，求教下开发效果...

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

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6.4k views

1 answer

python - How do I web scrape a website behind a login?

I am trying to web scrape a landing page that requires a login to access. My current script (based off the video ... .post(url=url+login, headers = headers, data = payload)...

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3.4k views

1 answer

go有没有推荐的rabbitmq的封装好的第三方包推荐

go有没有推荐的rabbitmq的封装好的第三方包推荐...

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

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4.1k views

1 answer

Ant design vue进度条:percent问题

用Ant design vue进度条带入数据进去和改变进度条宽度的时候就报如下错误。请问这是怎么回事啊？...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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4.0k views

1 answer

python - combined client and server using aiohttp

I am trying to find an example of a python aiohttp app that both makes http requests as a client AND ... data resource shared between the client process and server process?...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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4.7k views

1 answer

python - Scrapy spider error processing (scrapy.core.scraper)

after reading several hours of solutions I still could not find an answer to my problem. I am trying to scrap a ... :14:42 [scrapy.core.engine] INFO: Closing spider (finished)...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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4.1k views

1 answer

windows - Environment variables not working properly

I'm trying to run an application that reads an environment variable that contains a JSON with about 22k characters. The project ... it is not complete. Is there any fix for this?...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3.5k views

1 answer

Angular/RxJs When should I unsubscribe from `Subscription`

When should I store the Subscription instances and invoke unsubscribe() during the NgOnDestroy life cycle and when can I simply ... ); } ngOnDestroy() { this.sub.unsubscribe(); }...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3.8k views

1 answer

visual studio - From the last 2 3 times always this error accours

It is the Dubbugging console I also face same issue while flutter run command also:...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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4.0k views

1 answer

Python, tkinter, treeview: unable to populate DateEntry box or the multiline Text box from the treeview selected row

getting error 'DateEntry' object has no attribute 'set' also no error but the Text box does not get filled any help would be ... #notes.set(row[8]) # this is a multi line Text box...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3.6k views

1 answer

eslint 校验输出报错，有没有大佬遇到过

Configuration for rule "camelcase" is invalid: Value {"properties":"never","ignoreDestructuring":false} should NOT have additional properties. 直接导致eslint校验失效了...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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