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遇到一个移动端画板的需求，需要在给定的图片上进行标注，原图需要放大后进行标注，我先用了css transform:scale 放大画布，然后进行标注，这样会造成坐标出问题我目前的获取坐标方法，不进行 ... = e.touches[0]; var x = touch.pageX; var y = touch.pageY; return {x, y} }...

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

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electron-vue引入element-ui组件样式不生效

题目描述 electron-vue项目，引入了element-ui组，组件注册上去了，但是样式未生效相关代码 main.js import Vue from 'vue' import App from './App' import router from './ ... ('#app') 你期待的结果是什么？实际看到的错误信息又是什么？期望正常显示...

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

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公司开发一套移动端网站，还需要与APP对接，使用什么框架合适？

现在公司要求开发一套移动端网站，还需要与APP对接调用手机功能，由于公司比较小，没有其它前端前辈，自己开发经验也不是特别足，没有开发过类似项目的经验，所以想请教前辈们一些问题 1.开发这种页面与开发浏览器页面有什么区别吗？需要注意 ... 发浏览器页面是否有区别？ 3.项目可以使用vue的脚手架搭建吗？没有类似开发经验，所以要请各位前辈多多指教！十分感谢...

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

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412 views

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Vue 双向绑定的 setter ，改变形参影响实例对象

想写一个双向绑定的 demo，在做的时候出现了一个奇怪的现象在 defineReactive 里面的 set 改变了形参 value 的值却会改变 vm 实例对象的值 value 是从 obj 里面的属性获得的 ... ) { if (newValue === value) return // 这里 value = newValue } }) } }...

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

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Node指定范围时间查询

node后端怎么实现指定时间范围查询呢...

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

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sql server - MSSql get week of a date

I using a old version of mssql express and my reports that includes went bananas. SELECT DATEPART(wk, '2021-01-01'), ... week. In mysql that would be: select week([date],3)...

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

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java - Sort a list of objects, based on values, taken from another class

I have a list of objects of "Category" class: public class Category { private String originalId; private Double ordinal ... sorting Is there some simple nice approach to doing so ?...

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

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160 views

1 answer

r - Grouping Rows in GTSummary

I am trying to group some rows/variables (both categorical and continuous) to help with the table readability in ... use gtsummary::as_flextable for table output. Thanks again, Ben...

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

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314 views

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redis点赞功能的问题

如果只是设计一个点赞接口，用来存储点赞数据，不做点赞列表功能，我们可以使用redis里的集合来实现，主要利用了集合的互斥性那么，我的想法是，点赞和取消点赞都是同一个接口吧？逻辑是：判断uid是否在集合中是：则从集合删除，这个等于 ... 该还是属于未点赞，但是如果不能保证原子性，则可能会出现连续点击两次后，结果为点赞成功，请问我以上的想法是否正确？...

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

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1 answer

wordpress - Everest forms - send mail to site admin AND post author snippet

can you assist here with Everest forms? Unfortunately unlike WPForms, Everst forms do not offer mail to the post author (dynamic) based on who is the author....

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

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1 answer

I can not build flyway 6.5.5 with maven besause gradle-plugins-3.0.pom and gradle-plugins-3.0.jar can not be found in all the maven repository

I want to build flyway 6.5.5 source code. However, I can not find the dependency gradle-plugins-3.0 for the module ... .com. Where can I get this dependency gradle-plugins-3.0?...

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

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1 answer

apache - How to dissociate WAMP localhost address and Docker container localhost address?

On a Windows machine there is WAMP installed and Docker running OnlyOffice - installed with this command: docker ... , with a preview feature for Microsoft Office documents....

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

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534 views

1 answer

stream_socket_client()创建的连接资源，如果不使用主动关闭会自动释放吗？

先看代码如下 // 建立socket连接到内部推送端口 $wm_client = stream_socket_client('tcp://127.0.0.1:5678', $errno, $errmsg, 1); // 推送的数据 $data = $arr_get; // ... 接同样会关闭且对应内存资源也会释放，因为php是执行完就释放内存的，对吗？...

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

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mysql - How to use json array for where in parameter and get min value

Table goods goods_uid goods_name 1 goodsNameOne 2 goodsNameTwo...

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

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315 views

1 answer

go - How to interrupt sending on a channel

I'm trying to implement a component that queries a database for events and notifies the user if a new event is available ... option. What's the best practice on this type of issue?...

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

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570 views

1 answer

三个人各存有一个随机数,如何在数据不泄漏的情况下计算三个随机数的平均数

面试中遇到一个问题：有三个人，他们每个人各有一个随机数，但是彼此不知道对方的随机数是多少，三个人之间可相互通信，在保证数据不泄露的情况下，如何能计算出这三个数的平均数呢？写出解题思路。请教一下各位大神时候有相关解题思路呢？面试官给的提示是这个题是可解的。...

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

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210 views

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c# - Playing multiple videos at once

I'm using http handler to retrieve video from database this is my code SqlConnection con = new SqlConnection(GetAttachmentConnectionString ... and time 0:0 How can I solve this?...

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

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204 views

1 answer

Plotly: Hiding axis label and reducing margin accordingly

I want to hide the y-axis title from a plotly plot, and have the margin adjusted to avoid unnecessary white space where ... would like. How can I achieve this using R and plotly?...

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

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202 views

1 answer

react16.13对requestAnimationFrame弃用了么

看了一下react源码，react只定义了两个变量 var requestAnimationFrame = window.requestAnimationFrame; var cancelAnimationFrame = window. ... 个api在react是怎么被使用的，MessageChannel和它有关系么...

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

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175 views

1 answer

CSS class selector for single page

I have this code and I want to remove this image www.testsite.com/images-5.jpg by using CSS (using display: none). I tried every ... > </div> </header></body>...

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

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1.2k views

1 answer

docker-compose 搭建redis哨兵，哨兵配置文件监听master节点的问题？？？

port 26379 dir /tmp sentinel monitor mymaster 172.20.0.3 6379 2 sentinel auth-pass mymaster redis_pwd sentinel down-after- ... IP和端口的话，需要在docker-compose.yml配置network参数吗？...

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

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297 views

1 answer

node.js - How can i disable nuxt / redirect

My nuxt application redirect all url that ends with / ex:localhost/list/ redirect to localhost/list Can i disable this redirection? Thanks!...

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

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1 answer

请问 flutter 如何去掉 appBar Title 部分高度?

请问图中红色框子里的这一栏怎么去掉呢？ class HomeScreenState extends State<HomeScreen> { @override Widget build(BuildContext context) { ... body: SearchBar(), backgroundColor: Colors.orange, ); } }...

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

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452 views

1 answer

c# - TypeInitializationException / SSL library issue with dotnet core and Ubuntu

I have a dotnet core app (netcoreapp3.1) that crashes with the following error on launch: $ dotnet run Unhandled ... macOS: "The type initializer for 'Crypto' threw an exception"...

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

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355 views

1 answer

php - How to return only named groups with preg_match or preg_match_all?

Example: $string = "This is some text written on 2010-07-18."; preg_match('|(?<date>dddd-dd-dd)|i', $string, ... I haven't seen similar modifier for the PCRE functions in PHP yet....

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

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299 views

1 answer

kubernetes - Install Linux package on launch when deploying Airflow with Helm in Azure Kubernets Service

I'm trying to install Airflow on Azure Kubernetes Service (AKS) using Helm. I've found some guides to do so, and ... but couldn't find anything Hope someone can help me on this....

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

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146 views

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excel - When Cells match with certain columns in a table, do X

Because I'm a big noob at VBA I can't seem to get this problem solved. I have the following problem: I have an ... Next Else MsgBox "Negative result" End If Next Next Next End Sub...

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

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131 views

1 answer

reactjs - React function displayBanner compile issue

I am currently working on a project and trying to hide a banner by changing the state of a className like the ... dismissed. Can anyone assist in explaining what I?am missing?...

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

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