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使用场景：客户端开启两个python进程访问同一个DolphinDB的server端，假如我在python进程A中运行demo获得了一个处理过的table1，我想在进程B中直接使用这个处理过的table1，该如何在DolphinDB中实现？...

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

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vue3.0中使用组件自定义指令

文档中是这样描述的在 Vue 3 中，我们现在支持片段，这允许我们为每个组件返回多个 <li> 的组件或一个表的子元素这样的组件有多方便： <template> <li>Hello</li> <li>Vue</li> <li>Devs!</li> ... 这说的是什么意思,有大佬可以给个示例吗,基本的组件使用方法我已经掌握了,只是不太理解这里说的什么意思...

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

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php获取到的数组中包含object，get_object_vars 和 json_decode取不出来 object中的值

php获取到的数组中包含object， array(6) { ["dev_system"]=> string(3) "ios" ["json_expired"]=> string(15) "[ ... (7) "4616520" ["login_code"]=> string(32) "0018H9Ga10whVz0B6KHa1G0ZT318H9GQ" }...

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

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1.9k views

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mysql - Ubuntu Linux 18.04 WSL in Windows: MariaDB service start fails

After installing MariaDB repository configuration tool for the first time in my Linux WSL for Windows (as described in ... systemd) How could I start my MariaDB service? Thanks...

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

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Gitlab java build fails even though eclipse and tomcat don't give me any error

I added this method to my java maven project private Subquery<Date> latestEvent(final CriteriaQuery<?> query, final ... one that's obviously causing the build error on gitlab?...

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

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mac node运行mysql语句卡住

...

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

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grafana - Filtering github project board cards by column

Is there a way to filter project board cards by column. For example I want to know how many cards are in every ... column. At the the moment I'm using grafana github data source...

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

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.net core - GitLab Runner stopping after `dotnet restore` or `dotnet test`

I am new to CI and tried to add the following yaml to our project. image: microsoft/dotnet:latest stages: - test ... the GitLab Runner itself? Project Version: .net Core App 3.1...

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

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2.6k views

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three 场景对象可以新增自定义属性吗

如果我给Scene添加一个description属性，但是在后期操作会发现description属性并不存在使用scene.toJSON() 转换 description属性会丢失后来尝试把他转化为字符串的JSON.stringfy(scene) 存储起来，然后在JSON.parse(scene) 发现还是没有description属性，如下图...

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

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android - ProgressDialog onProgressUpdate get error "DecorView: mWindow.mActivityCurrentConfig is null"

My ProgressDialog is as follows : ProgressDialog loading; in AsyncTask : @Override protected void onPreExecute() { super.onPreExecute( ... can I get rid from the error in logcat ?...

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

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正则匹配标签内的空格问题

我尝试用/(<.*?>)s(.*?)(</.*?>)/g 匹配 // 正则表达式 let rex = `/(<.*?>)s(.*?)(</.*?>)/g`; // 原字符串 let str = `<p class="ss" ><br> tab空 ... p>` 得到的结果是只匹配标签内的一个空格, 请问怎么实现标签内的空格都替换成 ? 呢? 在线匹配测试地址...

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

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localhost - Why does changing php.ini and reloading Apache in Laragon result in 403 Forbidden?

Setup Local development: Windows 10 Pro (20H2 19042.685) Laragon Full 4.0.15 190704 Apache httpd-2.4.35- ... occurs whenever Apache is restarted, regardless of php.ini changes....

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

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求教用echarts 怎么实现一个图表每个月都有一个峰值曲线图那种

横坐标是一月二月三月等，图形是每个月都有一个峰值曲线图，一月的就在一月那一块，二月在二月那一块，单独的...

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

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3.1k views

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node的require在web端是同步的还是异步的

使用vue cli搭建的一个项目，我在一个vue文件里面使用了require方法来引入一个文件，想知道这里的require是异步的还是同步的 test.vue <button @click="getfile">获取文件</ ... require('xx/xx/test.js') console.log(file) // .... } } </script>...

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

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关于vue打包的问题？

在项目中并没有npm yui这个依赖，但是最后的经第三方人员（不是公司人员）测试，存在yui漏洞，最后只在打包后的文件中出现了这么一个注释，请问这个注释和yui有关系吗...

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

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umijs 如何配置浏览器的icon和title？

如题，umijs是如何配置才能修改浏览器的title和图标？以下是.umirc.js文件内容，几乎都是标准生成的感谢！ export default { treeShaking: false, minimizer: 'terserjs', routes: ... .(t|j)sx?$/, /components//, ], }, }, ], ], };...

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

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3.8k views

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vscode的command+d如何跳过某一项？

vscode的command+d是选中相同字符，请问大神：如何跳过某一项？如何不匹配大小写？...

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

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javascript - How to restart a function from inside it

I'm trying to restart the function non() with the if statement inside. I have looked at other sources and none of them seem ... " onclick="non()" value="reset">Non</button> </div>...

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

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web项目，需要服务端在客户端指定位置创建文件或文件夹，怎么做呢？

现有公司内部使用的一个web项目，java开发的，远程服务器部署，使用的FreeMarker生成的文件，怎么能程序控制到用户指定的文件夹，现在本地启动是可以实现的，部署到服务器就创建到服务器上去了，不要下载然后手动复制的这种，应该怎么在这个基础上实现呢？websocket是否可行，...

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

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无法从组播端口中接收报文

无法从组播端口中接收报文项目中有一个用到组播的需求，需要在程序中接受服务端发出的组播报文服务端的组播接口已配置好，可以用客户端上的 ... .java:812) thread.ThreadFrdpNet.run(ThreadFrdpNet.java:56) java.lang.Thread.run(Thread.java:748)...

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

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4.9k views

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string - flutter: HTML selectable text

I developed a page where I can show HTML code as Text. Like as Html(data: htmldata,) but I want to make this text ... . Like what happens in SelectableText(). How can I do this ?...

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

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4.7k views

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How to insert a Django template tag + HTML element in a HTML page with Javascript

How can I safely add a piece of HTML with Django template tags in it using Javascript? For example, if I have something like this ... is an if statement</p> {% endif %} ` </script>...

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

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ubuntu - Cassandra initial connect with gocql

The code is written with Go and Cassandra and when I build it works good in my local computer. But when I upload it to the ... err != nil { panic(err) } Anybody has any solution???...

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

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Typing "gnome-control-center" on terminal causes my computer to "log out" (Ubuntu 20.04 LTS)

By typing the command "gnome-control-center" on terminal, it causes my computer to "log out to the main page and ... that the GPU do not support the Gnome control center? Thanks...

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

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Python爬虫失败，

为什么每次爬虫运行完代码都是显示这样的错误呢？ DEFAULT_PARSER_CLASS = etree.XMLParser AttributeError: 'function' object has no attribute 'XMLParser'...

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

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3.9k views

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微信公众号jssdk，js安全域名配置为二级域名，那对应的三级域名可以生效吗？

如果我配置的是aa. com 那么bb. aa. com和cc. aa. com这种可以生效嘛...

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

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javascript - No output from (GET) Ajax Result From Php Array with json_encode

I have a GET form that gets a Php Array and json encodes it. The Issue I am having is the success data is not ... (data) and alert(data), this is what I get,empty objects...

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

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javascript - Change async/await to Promise

I would like to change the following async/await code const mongoose = require('mongoose') const supertest = require(' ... solve it correctly and I keep getting an error message:...

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

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