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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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1 answer

本文设计页面

eclipse jee（2017）如何嵌入Jpanel文本设计页面...

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

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177 views

1 answer

string.replace 截取字符串得不到预期的结果？

使用的时同一个方法截取的结果预期不同 "moduleType_7556304c7b9f9b325c6e309c1c84d5a2".replace(/^(1*)_/,'') "functionModuleList_7556304c7b9f9b325c6e309c1c84d5a2".replace(/^ ... a b 得到预期结果加s 就得不到预期 s ?...

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

0 votes

477 views

1 answer

为什么我使用gradle构建java的多模块项目时依赖不能正常传递呢

最近由于Spring向gradle进行迁移，所以打算也学习一下gradle，我在使用gradle构建多模块的spring boot项目的时候发现依赖不能正常的传递， ... ' dependencies { implementation( 'org.springframework.security:spring-security-core' ) }...

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

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340 views

1 answer

Error while establishing a FTP connection

When I am trying to establish a FTP connection using below command via port 990 I'm getting the error: 530 ... another server which works even without specifying *NONE for SECCNN...

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

0 votes

325 views

1 answer

node.js - Node modules error when starting application

I am getting the following error when starting my app. I tried updating node, mongo, and typescript but that didn't ... .json and tsconfig.build.json . How to solve this problem?...

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

0 votes

635 views

1 answer

用 js 截取视频第N帧

用js可以通过canvas来获取视频base64格式的第一帧如果不考虑后端前端可以通过js和视频地址获取的视频第N帧吗？...

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

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434 views

1 answer

如何处理递归逻辑

问题：一个任务Task可以存在几个先置任务：如TaskA有俩个先置任务TaskB TaskC，先置任务的意思是，在执行A任务之前，TaskB与TaskC必须先处理，那么这样就存在一个问题：如果用户设置TaskA的先置任务是TaskB，但是在TaskB ... 类型的先置任务ID，对于这个可能存在循环依赖的问题，有什么好的解决办法吗？想听听大佬的思路 ...

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

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346 views

1 answer

while trying to use an ErrorDocument to handle the request.

apache静态文件可以访问,但动态文件请求不到今天晚上配置apache连jboss时，发现apache的静态文件可以访问，但是访问动态的文件却访问不了我到网上查，大部分的 ... mod_proxy.so LoadModule proxy_ajp_module modules/mod_proxy_ajp.so 按照这个文档配置不起作用，是怎么回事了呢?...

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

0 votes

399 views

1 answer

wordpress - Changing main product image according to the selected filter property (WooCommerce)

i have some variable products and a filter by color, i want to display main product image according to the selected ... in the filter the page show the product with black color....

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

0 votes

379 views

1 answer

PHP French characters

Can someone, please, help me we the next one... I try to make Read More and Read Less, but the problem is if I limit ... de qualité de...Read Less How can' I fix this issue? Thanks...

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

0 votes

406 views

1 answer

arduino - Is there a possibility to get pseudo response from RS485?

I'm not very good at programming, but I am trying to make simple communication between USB to RS485 converter and ... real data to the system there would be no data collision....

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

0 votes

359 views

1 answer

关于socketserver线程之间的通信

这程序主要是用socketserver监听2个端口，一个9999,一个10000 设计是不管哪个端口的连接，都放到类属性conn_pool中保存起来程序会将9999端口的连接，收到的数据，发送给10000端口的连接 ... 进程，server2无法启动 server1.serve_forever() # 主线程等待p线程的结束才退出程序 p.join()...

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

0 votes

494 views

1 answer

公众号开发中图片在android上被拉长的问题

各位好，请教一下：如何解决图片在安卓上被拉长的问题？仔细观察了一下，全部图片都被拉长了，不仔细看不容易发现，就像下面两张图，第一张是原图，第二张是在安卓上的效果，明显第二张图上的美女变瘦了：...

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

0 votes

377 views

1 answer

c++ - How can I initialize an array of its length equal to the return of a const int method?

What I'm trying to accomplish is this: inline const int size() { return 256; } int main() { int arr[size()]; ... global variables, Macros, std::vector or creating arr[ ] on heap?...

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

0 votes

478 views

1 answer

Web端如何调用百度地图app?

最近做一个导航的功能，想从web端携带目的地的经纬度等参数跳到百度app， location.href="http://api.map.baidu.com/marker?location="+latitude+","+longitude+"&title=我的位置 ... 这样写的话跳到的是百度地图web端，怎么样才可以跳到百度地图APP，求解，谢谢 ...

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

0 votes

692 views

1 answer

python - Total number of TP, TN, FP & FN do not sum up to total number of observed values

I was going through the Classification on imbalanced data by TensorFlow. Here in this tutorial they have used Kaggle' ... the values represent count and should hence be integers....

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

0 votes

831 views

1 answer

vue+ts+nodejs项目中如何连续请求不同的页面而不影响单个页面的加载？

多个子项目集成的一个项目中，如何连续请求不同的页面而不影响单个页面的加载（说明：当请求的页面还未加载完成就去请求另一个页面，那么当前的请求的就会变成之前请求的那个页面，这样明显是被影响到了）呢？这个就像浏览器能连续打开好几个标签页，然后各个标签页相互之间没什么影响，各自加载各自的，求解！谢谢！...

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

0 votes

970 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)

0 votes

1.1k views

1 answer

递归结构json取出所有id最大值

怎么获取所有的value值，并取出最大值呢数据引用递归结构的json取指定的值？ [ { "label": "上海", "value": 310000, "children": [ { "label": "上海", "value": ... 131 }, { "label": "测试2", "value": 132 } ] } ] } ] } ]...

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

0 votes

1.4k views

1 answer

ios - StoreKitTest : Request product error Domain=ASDErrorDomain Code=950 "Unhandled exception"

I'm trying to unit test my framework calling StoreKit with the new (iOS 14) StoreKitTest and I'm getting this ... SKRequest, didFailWithError error: Error) { print(error) } }...

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

0 votes

1.1k views

1 answer

js三层数组用value找出对应的key

怎么根据["110000", "110100", "110101"],找出对应的，北京,北京市,东城区 data = [ { label:'北京', value:'110000', children:[{ label:'北京市', value:' ... ,{ label:'西城区', value:'110102' }] }] } ... ... ... ]...

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

0 votes

1.5k views

1 answer

asp.net mvc - From a report RDLC - Using MVC ReportViewer Is there a way to call a URL to another Controller-View?

I have a ReportViewer RDLC report running in my MVC Controller-view. There's a field in the Report, that I need to hyperlink ... (A Razor helper ?). Thanks if you know any ideas....

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

0 votes

1.4k views

1 answer

【求助】echarts 仪表图开头结尾有圆点怎么实现？

如何实现图下标注的部分...

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

0 votes

1.7k views

1 answer

python - How can i fix this error: too many values to unpack (expected 4) for the code gievn below?

What is wrong with this code? import pandas as pd url1 = 'https://raw.githubusercontent.com/ben519/DataWrangling/master/ ... i) ValueError: too many values to unpack (expected 4)...

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

0 votes

1.3k views

1 answer

c# - How to Select an Item in a Dropdown List

I am not able to click a dropdown list to open and then select a particular element in the list in an web app. I have ... ></div></div></div> Hoping get any feedback. Thank you....

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

0 votes

1.7k views

1 answer

公安系统提供实名认证查询接口吗？比如姓名与身份证是否匹配的接口？

1.公安系统是否提供实名认证接口？比如姓名与身份证是否匹配的接口？ 2.移动联通是否提供实名认证接口？比如姓名与手机号是否匹配的接口？...

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

0 votes

2.2k views

1 answer

xamarin.forms - Use font awesome icon for tabbed page tabs

This is how I add tabs to a tabbed page. I have Font awesome icons working at various places in my app. How ... DeviceSettingsPage(item)); Children.Add(new FirmwarePage(item)); } }...

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

0 votes

1.2k views

1 answer

html - Need to find where 2 objects are located in Javascript

I'm trying to get 2 objects locations, so I can make the AI I coded to not walk through walls. My problem is that it's ... .top = parseInt(enemy.style.top) + 64; enemyTop += 64; }...

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

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