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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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memory - C++ : Alternative to constructor initializer lists without assignment?
I'm facing the following problem: I want to pass the _partHandlePtr to the constructor of _currUnmanaged and ... Handle>> _partHandlePtr; } Thanks for suggestions and solutions!...
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Jan 27, 2021
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excel - SQL Statement - Select Where * Not equal to
All, New to SQL Statements (Probably a really basic question) I am attempting to extract all data where the column ... The database I am using is Excel Database Thanks in advance...
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Jan 27, 2021
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excel
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436
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有用过vite的吗
通过用了vite的插件让vite能跑vue2 但是发现好像当代码中 有非esm规范的可能浏览器就解析不了了,查了一下,说optimization这个配置启动的话是能自动转的,将cjs转成esm规范,但是不知 ... path.replace(/^/api/, '') } }, port: 9876, } export default config 求助大佬...
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Jan 27, 2021
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apache 无法更改端口号
在win10下使用apache,设置好了httpd.conf的SRVROOT, 将servername设置成localhost或者是localhost:8888之类的,listen参数也跟着一起设置,但是无论如何,都只能在localhost上看到"it works",加任何端口号都没办法访问, 不知道是哪里出了问题...
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Jan 27, 2021
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apache
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screencast - Screen cast from Windows/Android to linux device connected indirectly
I was recently thinking about establishing a receiver of Wi-Di (aka Miracast) from my SBC with linux (Armbian at the ... in advance, I'll appreciate all relevant ideas or links....
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Jan 27, 2021
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screencast
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return 数据无法到函数上
如上图,为什么箭头函数中return不到最终函数呢?...
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Jan 27, 2021
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return
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electron9.0.3版本无边窗弹窗出现的位置,总是不对。
原electron版本9.0.0,为了解决pdf预览问题升级到了9.0.3. 发现在linux上双屏的情况下无法全屏 且程序界面总是出现在副屏幕, 通过渲染进程设置{x:0,y:0}, 成功将程序界面设置到了主屏幕 但又出现了新问题, 原 ... 渲染进程设置位置也无法移动子弹窗位置, 但是把无边框变成有边框,{x:0,y:0}就生效了, 求大佬解惑###...
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Jan 27, 2021
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551
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python - Django import Error(from extras.plugins import PluginConfig)
I'm new to Django and I try to develope a plugin for NextBox using this framework. To get familliar with it ... installing the package, .plugins is unkown as well as PluginConfig...
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Jan 27, 2021
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python
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813
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model view controller - Forms inside foreach loop MVC
I have situation where MVC controller has sent list of records. Those records are displayed in view in order ... Details",new { transferHeaderId = update.TransferHeaderId }); }...
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Jan 27, 2021
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model
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641
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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?...
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Jan 27, 2021
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在DolphinDB
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dva中effects的call使用
对call的使用,官网上说用于调用异步逻辑,支持promise 但是不使用call,也可以直接调用异步逻辑 例如下面两种方式结果相同,所以还没搞明白call的使用场景, // 方式1 let res ... res.success) { yield put({ type: 'setData', payload: { data: res.data } }) }...
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Jan 27, 2021
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performance testing - What is the ideal ratio between No of threads and ramp-up period in Jmeter for REST API
I need to design a very basic Performance test for REST API. no of concurrent users=40, response time= less than 500ms ... give ramp up period as 2 seconds? Thanks in Advance!!!...
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Jan 27, 2021
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performance
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How to set up a dynamic R single choice quiz?
How to set up a dynamic R Quiz, with the choice of 5 elements, the first of which should be the correct solution, the others options must be incorrect?...
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Jan 27, 2021
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How
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1.1k
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js 数组操作的问题
后端给我的数据是这样的: let obj = [ { areaName:"华南地区", cityName:"深圳" }, { areaName:"华南地区", cityName:"广州" }, { areaName:"华南地区", ... " }] }, { areaName:"华北地区", children:[ { cityName:"黑龙江" }] }...
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Jan 27, 2021
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js
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在vue.config.js中怎么配置将一个第三方库编译成es5
const path = require('path'); function resolve(dir) { return path.join(__dirname, dir); } module.exports = { publicPath: '/wf/', ... : { compress: true, port: 9000, proxy: {} }, };...
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Jan 27, 2021
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Nginx : Location = / not working with location /
I have a nginx host file with two locations and I want to have the exact / goes to index.html and /something ... -For $proxy_add_x_forwarded_for; } I hope you can help me. Thanks....
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Jan 27, 2021
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Nginx
0
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1.3k
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1
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Using ffmpeg on Ubuntu, how can the audio and video from an audio-video USB capture device be recorded?
I have a USB audio-video capture device, something used to digitize video cassettes. I want to record both the video ... -i /dev/video2 out.mp4 Unfortunately this hasn't worked....
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Jan 27, 2021
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Using
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1.2k
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mpvue中web-view怎么使用bindmessage?
如题,需求是h5页面传参给小程序接收,代码如下: h5: <template> <div> <button @click="postMessage">click</button> </div> </template> <script> import wx from ... 序点击进入web-view的page直接就跳转到h5页面了,也没有打印任何信息,求解 ...
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Jan 27, 2021
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Technique[技术]
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71.8m
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0
votes
1.4k
views
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react 函数组件可以实现继承类似的效果吗?
比如在插件的函数组件点击事件中:我希望如果组件指定那就调用统一指定的默认的点击事件,但是用户也可以自定义其行为,使用类比较好实现,但是现在基本都是函数组件,有什么方法可以做到?...
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Jan 25, 2021
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react
0
votes
1.6k
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1
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rust - How to get the interrupt reexport from cortex-m-rt in stm32f30x to run
I want to write a program for the STM32F3Discovery board using rust and the cortex-m-rt and stm32f30x crates. More precisely I want to ... = "0.6.3" I am gratefull for any help :)...
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Jan 25, 2021
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rust
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1.6k
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associative array - Sorting multi-dictionary in python
I have a datastructure like this: poll = { 'LINK' : {'MoonRaccoon' : 1, 'TheDirtyTree' : 1}, 'ZRX' : {' ... to python and super rusty at coding in general. Thanks for any help....
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Jan 25, 2021
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Technique[技术]
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associative
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1.4k
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1
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再问一个js里面的一个新手小问题,关于声明变量
bbb="888" console.log(bbb) let bbb //为什么会输出bbb is not defined,let声明不是不会提升么,应该输出888呀 var a = 1; function foo(){ if(false){ var a = 2; ... 完毕 },0); }//如果多次执行,为什么前面会输出2,4,6 这是什么诶...
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Jan 24, 2021
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Technique[技术]
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71.8m
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0
votes
2.0k
views
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amazon web services - aws signatureThe request signature we calculated does not match the signature you provided
I am trying to invoke API gateway using AWS signature in nodejs. but I am getting "The request signature we calculated ... ), "isBase64Encoded": false }; return response } };...
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Jan 24, 2021
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Technique[技术]
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amazon
0
votes
1.5k
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1
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使用think-queue,向指定DB插入数据问题
项目中使用了think-queue来处理一些延时任务。但是最近发现,比如redis默认的DB是0,当往DB0 PUSH数据的时候却写到了DB2或者其它DB。很是疑惑...
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Jan 24, 2021
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Technique[技术]
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Node TS 框架使用的问题
想用 node + TS 部署一个后端项目,选来选去使用 nest 框架,但是打包的时候遇到了问题,nest build 命令不会把所有依赖打入最终文件,而是生成了一个 tsconfig.build.json 文件指定路径 这样就导致 ... 录打入镜像后,发现还需要 npm install 才能使用 而且一个初始项目就已经将近 400MB,实在是太大了 ...
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Jan 24, 2021
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Node
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1.7k
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Keyboard shortcuts not working on published extension, but working when loading unpacked developer extension?
I created keyboard shortcuts in my extension that worked while I was testing, but don't work when I ... docs/extensions/reference/commands/) these keyboard shortcuts should work....
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Jan 24, 2021
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Keyboard
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4.5k
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1
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vue.js - Login Firebase Ionic-Vue Capacitor
I am making an app that I want to compile for the web and for mobile in which I want to implement a login with ... a capacitor ionic-vue project that works on both web and mobile....
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Jan 24, 2021
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vue.js
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1.6k
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1
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audio - Is there a way to imitate sound input with python?
I wanted to make a program that would pass some sound data to the system's microphone, imitating person's speech. ... with python (or any other language)? Thanks in advance....
asked
Jan 24, 2021
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Technique[技术]
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audio
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