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Welcome to Our Knowledge Sharing Community-Open, Learning,Share

Welcome to developer's Knowledge Sharing Community-Open, Learning,Share 欢迎来到程序员专属的知识分享社区! 一个分享知识，传递知识，学习知识的社区！...

asked Feb 5, 2021 in Others[杂七杂八] by ostack (1.4k points)

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489 views

1 answer

Raw UDP Socket in Java

Now, I know there are other posts on this, but I made this as the only ones I found wherefrom like 2018. What I want ... know what else to say as this is kind of a dull question....

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

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617 views

1 answer

如何动态渲染element-ui的表格展开行？

` <el-table-column v-if="isShow" type="expand"> <div>.....</div> </el-table-column> ` 我想动态的切换 isShow ，可是当 isShow 从 true 切换为 false 时，里面的内容会自动的跑出来，求帮助。即这个页面，true时显示，false 就不显示。...

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

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1.3k views

1 answer

el-input 正则只能输入数字，但是输入中文报错

<el-input v-model="detail.deliveryUserPhone" onkeyup="this.value = this.value.replace(/[^d.]/g,'');" maxlength="11" ></el-input> 当我第11位输入是中文 ... 说就不进入这个事件了，所以就一直验证不了，就算输入正确的手机号码也不行...

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

0 votes

579 views

1 answer

python - How do I make a copy of a GradientTape object in tensorflow? (Monte Carlo App)

I have an expensive initialization op before I perform my calculation in tensorflow. My code looks something like this: x ... shouldn't matter if it was persistent or not)? Thanks...

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

0 votes

796 views

1 answer

android paho mqtt 同一界面多次进入，仍然会请求上次进入界面的主题？

假设首次进入设备01 的设置界面读取了实时的设置，返回列表再进入设备02 的设置，sdk先发一次 02 的主题，再发一次01 的主题，最终显示的数据是 01 的数据。试过在 onDestroy 中取消订阅、断开连接，都不太合适。，...

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

0 votes

1.1k views

1 answer

dart - Why Flutter Navigator 2.0 API not work with flutter_block?

I am trying to make navigation by serving pages via BLoC (flutter_bloc 6.1.1). main.dart: class MyApp ... project: https://github.com/morfair/flutter_test_app/tree/master/lib...

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

0 votes

1.3k views

1 answer

testing - Angular httpTestingController.expectOne throws even though httpClient.get was called

I have this simple function inside a service: getReports(url: string): Observable<Report[]> { return this.http. ... angular's testing controller doesn't recognize my call? Thanks!...

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

0 votes

658 views

1 answer

Java - Spring Boot - Reactive Redis Stream ( TEXT_EVENT_STREAM_VALUE )

I want to write an endpoint which always shows the newest messages of a redis stream (reactive). The entities look like this ... got the expected N+2 entries - so (2) worked aswell...

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

0 votes

978 views

1 answer

vue 3.0 eslint 的错误提示

使用 @vue/cli 创建了一个 vue3.0 项目编辑器使用 vscode,并安装了 eslint 和 vetur 插件 app.vue 报了下面的 eslint 错误,但是实际上 vue3.0 是允许的我试着修改了 .eslint.js,想关掉该规则发现没有效果有什么办法能关掉该规则...

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

0 votes

1.0k views

1 answer

在DolphinDB GUI中执行脚本创建的本地变量，是不是占用server端的内存？

使用DolphinDB的过程中，我在windows端启动了GUI界面，执行了一个DolphinDB的脚本，创建了一些本地变量（不是数据库或共享表），这些本地变量是算GUI java进程的内存还是算DolphinDB server端进程的内存？getMemoryStat()这个函数返回的内存占用情况是DolphinDB server端进程的内存占用情况吗？...

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

0 votes

1.3k views

1 answer

java - How to get data where time column (LocalDateTime) has 00 minutes?

I need query to retrieve all entities from database who has 00 minutes in TIME column which is represented as LocalDateTime? ... ://i.stack.imgur.com/22Ufc.png Thanks in advance....

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

0 votes

1.5k views

1 answer

python - Neomodel: specify neo4j database name in connection string

In the neomodel documentation it's possible to specify the neo4j connection string using the following statement: from neomodel ... ) Is there any way to do this in neomodel?...

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

0 votes

1.9k views

1 answer

多余文字查看更多怎么实现移动端

求思路通过js处理截取文字，怎么去判断文字截取到哪...

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

0 votes

2.5k views

1 answer

git - Repo with non android projects

I am working on a project where I am trying to unite several modules into one solution. The modules are each in ... 10:01 Setup_AQ/ Any help is appreciated here. Thanks! Adam...

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

0 votes

2.2k views

1 answer

Python Regex: Extract all occurences of a substring within a string

I am trying to extract all occurrences of a substring within a string using Python Regex. This is what I have tried: import re ... to achieve is ['10'x20'', '10x35cm', '30x35cm']...

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

0 votes

2.5k views

1 answer

git push或git clone时出错：The requested URL returned error: 500？

详细出错图在上面展示出来？希望各位大佬可以帮我解决。...

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

0 votes

2.4k views

1 answer

python - Django filter a prefetched queryset returning an empty list

In my app I have some Users and Groups, that are related by a many to many relation through GroupMember. class ... prefetching using the same through-model in relation to the user....

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

0 votes

2.3k views

1 answer

Laravel/Php - Modify the collection in eager loading closure?

I'm trying to modify this query: The function of the helper class returns me the products left by removing the ... to pass the helper as closure parameter but still no luck....

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

0 votes

2.5k views

1 answer

静态H5页面跳转小程序相关问题,跪求大佬帮忙看下

wx-open-launch-weapp 标签跳转小程序,一直找不到按钮贴代码,跪求大佬帮忙看下,Js的安全域名,服务器的配置都配过勒 ~~~~...

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

0 votes

2.5k views

1 answer

有哪些好的3D建模软件，最近对3D建模很感兴趣？

聚焦空间数据可视化的物联网3D开发平台thingjs，技术干货奉上空间可视化概述室内空间最直观的定义是被墙面地板面和屋顶面围合而成的有界空间近两年市场上兴起thingjs可视化建模开发组合，通过3D模型库进行扩展，并且从3D项目的角 ... 四百余家中国大中型客户的企业IT部门和数据中心部署使用，是目前市场上应用广泛使用普及的智能可视化管理平台 ...

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

0 votes

2.5k views

1 answer

html - main tag completely ignores third child element of the <div class="options">

var bannerStatus = 1; var bannerTimer = 3000; window.onload = function() { bannerLoop(); } var startBannerLoop = setInterval(function() ... premium</p> <p>$12.99 - gold</p> </div>...

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

0 votes

2.7k views

1 answer

Vue项目，JS怎么控制一自然天里只在第一次打开的时候触发某个事件？

项目需求：一天内只在第一次打开的时候触发某个事件？...

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

0 votes

3.4k views

1 answer

webpack,插件报错

new AddAssetHtmlPlugin({ filepath: path.resolve(__dirname,'dll/jquery.js') }) 请问插件add-asset-html-plugin以下报错怎么处 ... => ^ TypeError: Cannot read property 'tapPromise' of undefined...

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

0 votes

2.9k views

1 answer

初学SpringBoot，使用post请求String parameter 'username' is not present

Application.java package com.resume; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication ... +id+"字符串:"+code; } }...

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

0 votes

2.8k views

1 answer

请问小程序写的3D代码应该怎么改？

请问小程序写的3D代码应该怎么改？...

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

0 votes

2.5k views

1 answer

急急急uni-app云开发引入async-lock锁，依旧重复添加两条数据问题

主要是往用户表中添加用户数据，但是发现引入lock锁之后依旧重复添加，而且现在使用还报错了。。...

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

0 votes

2.5k views

1 answer

Tibco Rv如何实现主备机制？即在链接时判断，在运行过程中切换

rv怎么实现主备机制在运行过程中的切换？公司最近使用tibco rv进行消息监听，如何实现主机在运行过程中切换到备机监听，不影响到消息接收，我现在想的办法是启动一个timer，每5秒扫描一遍，如果没有消息，就切换到备用机上，不知道有没有正经办法...

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

0 votes

3.1k views

1 answer

reactjs - Adding drei to react-three-fiber causes error

I am working on a react-three-fiber project and I added drei as I have in the past. npm i drei The problem is that once I tried to ... "redux-saga": "1.1.3", "three": "0.119.0" }...

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

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