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289 views

1 answer

js 音频编码

js如何对获取到的音频进行opus编码...

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

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175 views

1 answer

Problems when testing function call with react native and testing library

I have a login form, which once submited calls a function returned from a hook. To make my testing easier, I receive ... ) Expected: "[email protected]", "134343" Number of calls: 0...

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

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237 views

1 answer

python - Find relevant rows falling under a date range in Pandas Dataframe and do some aggregations for these rows

I have 2 Pandas dataframe as below: A = pd.DataFrame({'UserId':['U1','U1','U1','U2','U2','U3'],'Start_Week':[' ... has large number of rows. Is there a quick way to get this done ?...

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

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267 views

1 answer

对分布式表去重报错

我在DolphinDB database中有一张分布式表tb_kline，其字段和数据如下图所示：现在我要把tb_kline中DT,Code重复的过滤掉，代码如下： select * from tb_kline where ... use any aggregate or sequential function. 我上面那个语法，是哪里写错了吗？...

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

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331 views

1 answer

midway.js 可以同时启动 http与https 服务吗？

需求：实现项目启动的时候，暴露两个端口【80，443】可以通过http://xxx 与 https://xxx 访问，如何实现吗？...

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

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467 views

1 answer

Django Gunicorn Failed About SQLite Version

I deployed django app to CentOS 7 Server. I want to use Nginx and Gunicorn. By the way i tried to make steps, gunicorn ... i change this) Any suggestion to solve it? Thx to all....

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

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318 views

1 answer

关于这道面试题，我的理解是否正确

function func() { let i = 0 return () => { i++ return i } } const func1 = func() const func2 = func() func1() func2() func1() func2() ... ，所以结果为 1 1 2 2 请问这样理解是够正确，不正确还望纠正下，谢谢...

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

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186 views

1 answer

javascript - How after begin Text Node in DOM

According to the documentation https://developer.mozilla.org/ru/docs/Web/API/Element/insertAdjacentHTML the insertAdjacentElement function ... as you need to add the Text object!...

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

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181 views

1 answer

html - Animate SVG line between custom input price range

I'm building a price range slider with 2 inputs from min price to max price and a SVG line that would animate left/right inside the ... `}</span> </div> </div> ); } Effect desired:...

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

0 votes

751 views

1 answer

关于axios中返回值不封装，post请求数据的问题

<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0" ... 中，会导致数据无法传输，而将$.param(customer)拼接到url后面就可以?...

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

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382 views

1 answer

vue为什么不可以直接用webp格式的图片呢？

请问VUE怎么直接使用webp格式的图片呢，是要安装组件呢还是要自己写方法。...

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

0 votes

338 views

1 answer

python - Safely evaluate simple string equation

I'm writing a program in which an equation is inputted as a string, then evaluated. So far, I've come up ... a mathematical expression from a string, as if inputting a number?...

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

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610 views

1 answer

微信小程序如何实现扫描二维码验证优惠券是否使用？

微信小程序如何实现扫描二维码验证优惠券是否使用...

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

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1.3k views

1 answer

webrtc gclient sync

操作系统是乌班图，下载的是webrtc，使用的是声网的镜像 $ gclient sync line 32: bootstrap-3.8.0.chromium.8_bin/python3/bin/ ... workspace -ensure-file /tmp/tmp_VMpuD.ensure' returned non-zero exit status 4...

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

0 votes

775 views

1 answer

antlr - How to preserve whitespace when we use text attribute in Antlr4

I want to keep white space when I call text attribute of token, is there any way to do it? Here is the situation: We have the following ... 1) = ')' THEN M = L; ELSE M = L - 1;...

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

0 votes

1.5k views

1 answer

nodejs election开发的应用自动更新

[背景描述] 使用nodejs election开发了一个运行在linux平台上的应用 [问题] 但有新版本发布时如何自动更新应用...

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

0 votes

498 views

1 answer

请问，如何禁止IDEA中的Vue.js插件在XML中显示vue的代码提示

我使用IDEA编写前端和后端代码，遇到如下问题：不使用Vue.js插件，则写前端页面没有代码提示使用Vue.js插件，会在所有XML文件中显示Vue的代码提示请问如何两全齐美的解决呢？谢谢！...

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

0 votes

629 views

1 answer

python - Getting Django - [Errno 111] Connection refused error

when Im trying to verify user registration via email its showing [Errno 111] Connection refused error in production ... members/register/ [Errno 111] Connection refused please help...

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

0 votes

562 views

1 answer

怎样拼接post数据比较舒服？

//提交保存 $('.j-submit').on('click',function () { var tab = $('.am-active').attr('id'); var prize_name = $("#prize-panel-" + tab + " ... ); }); 怎样能方便拼接post字符串？这种太恶心了当前页没有form表单这个标签 ...

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

0 votes

210 views

1 answer

node.js - "npm pack" includes .npmignore file itself

This is my package.json: { ... "files": [ "/artifacts", "/contracts" ], ... } And my .npmignore file, which ... . My question is whether this is the expected behaviour or is a bug?...

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

0 votes

545 views

1 answer

macos - When debug, I cannot input it appears"Terminal will be reused by tasks, press any key to close it."

I totally follow the official documents but I just cannot debug anyway. In the meantime, every time I try to debug ... program] would like to access files in your Documents folder....

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

0 votes

207 views

1 answer

flvjs如何监听ws流中断

如题所示：flvjs如何监听ws流中断...

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

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534 views

1 answer

android:state_pressed is not working , pressing the button it is not not changing the color

I have the following XML code in res/drawable and I set button background to this drawable. However when I pressed the ... blue">#49B8C7</color> <color name="pink">#FF8EB9</color>...

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

0 votes

311 views

1 answer

webrtc使用navigator.mediaDevices.getUserMedia获取的流是反的

使用环境安卓的webview加载h5网页，网页调用navigator.mediaDevices.getUserMedia获取到的流是反的上下颠倒通过设置video的 transform只能解决自己的显示，，解决不了推流给别人的流(上下颠倒的) 流程用笔 ... 这个场景会出现，，请问各位大佬有谁遇到过么，，我确定不是代码流程问题，就不贴代码了 ...

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

0 votes

409 views

1 answer

hyperf的Str扩展有static静态变量，这样会造成内存泄漏吗？

你好，我在看hyperf的Str扩展时候，发现Str类有类全局静态变量，但是swoole文档说明使用 static 关键词声明的类静态变量函数静态变量时，swoole是不会回收内存的请问这样会造成内存泄漏吗， ... 面有说过是直接引用了laravel的illuminate/support，但是我很好奇为什么不直接把Str:uuid这个方法也引入进来 ...

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

0 votes

500 views

1 answer

百度收录中，网址后一些参数是什么意思，怎么产生的？

https://bihua.51240.com/e695b0__bihuachaxun/?clicktime=1575546648 https://bihua.51240.com/e695b0__bihuachaxun/?tdsourcetag=s_pctim_aiomsg https://bihua ... 上是百度SITE结果，？后面的参数是怎么产生的？...

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

0 votes

255 views

1 answer

NET CORE 3.1 webapi中能不能使用filter来拦截cookies？

之前在MVC中，我使用using Microsoft.AspNetCore.Mvc.Filters这个程序集下的ActionFilterAttribute可以通过ActionExecutingContext.HttpRequest.Request.Cookies获取到 ... 请问在net core 3.1 webapi中如何获取到cookies？...

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

0 votes

465 views

1 answer

vue 移动端头像上传并裁剪功能插件用哪个呢？

求大佬们推荐一个兼容安卓，ios的插件，看了网上的帖子大多不兼容ios的...

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

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