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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!...
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Feb 5, 2021
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本文设计页面
eclipse jee(2017)如何嵌入Jpanel文本设计页面...
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Jan 27, 2021
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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 ?...
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Jan 27, 2021
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string.replace
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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' ) }...
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Jan 27, 2021
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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...
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Jan 27, 2021
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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?...
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Jan 27, 2021
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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?...
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Jan 27, 2021
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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 ...
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Jan 27, 2021
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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?...
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Jan 27, 2021
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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....
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Jan 27, 2021
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wordpress
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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...
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Jan 27, 2021
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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....
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Jan 27, 2021
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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()...
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Jan 27, 2021
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494
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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:...
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Jan 27, 2021
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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?...
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Jan 27, 2021
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c++
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478
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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 ...
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Jan 27, 2021
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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....
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Jan 27, 2021
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python
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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!...
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Jan 27, 2021
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970
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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!...
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Jan 27, 2021
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1.1k
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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 } ] } ] } ] } ]...
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Jan 27, 2021
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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) } }...
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Jan 27, 2021
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ios
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votes
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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' }] }] } ... ... ... ]...
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Jan 25, 2021
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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....
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Jan 25, 2021
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asp.net
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1.4k
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【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...
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Jan 25, 2021
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【求助】echarts
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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)...
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Jan 24, 2021
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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....
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Jan 24, 2021
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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?...
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Jan 24, 2021
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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)); } }...
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Jan 24, 2021
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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; }...
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Jan 24, 2021
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