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android - What is the meaning of "ClassInstance.[Someclass::class.java]" in Kotlin?

I've seen people using ViewModelProvider[Someclass::class.java] instead of ViewModelProvider.get(Someclass::class.java), ... couldn't find any documentation of such usage online....

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

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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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590 views

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aptana3 - Windows 10 Aptana Installing Error: Failed to Correctly Aquire installer_git_windows.exe file: CRC Error

I am trying to install Aptana 3 from the link here. I keep getting this error: Failed to Correctly Aquire ... OS: Microsoft Windows 10 Home System Type: x64-based PC...

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

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块级作用域也属于闭包吗，都说闭包是函数调用时创建的，为什么闭包中还包括函数中没有使用的变量？

块级作用域也属于闭包吗，都说闭包是函数调用时创建的，为什么闭包中还包括函数中没有使用的变量？...

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

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前端调试类似fiddler自动重定向的功能还是哪些软件可以实现？

比如请求https://www.ss.com可以自动重定向到https://www.bb.com这种功能...

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

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c++ - Why does std::getline() skip input after a formatted extraction?

I have the following piece of code that prompts the user for their name and state: #include <iostream> #include <string> ... but the code somehow ignores it. Why does this happen?...

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

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Go语言 websocket 一个端口建立多个连接会频繁断开

建立websocket连接的URL: var url = "ws://" + window.location.host + "/dev_ws?id=" + mac(); 下面是Go语言的发送心跳消息的代码 func (d ... , "[",ws.Request().Form.Get("id"),"] websocket 连接断开") }...

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

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ajax可以中断请求吗

一个地方四个按钮，每个都会调一个接口(调的方法是同一个参数不一样而已)，有用户快速来回点的时候返回不及时会产生交互延迟的情况，有没有办法，重新调的时候结束上一次请求或者有什么其他思路 ... if(data){ ... }else{ ... } }, error: function(data) { console.log(data) } }) }...

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

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753 views

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acumatica - Prepare Payments page not showing PayDate after adding a filter

I added a new filter to Prepare payment(AP503000). The filter works as expected. After testing I realized that the Pay Date( ... } else { yield return item; } } } #endregion } }...

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

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Swift 真的比Objective-C执行速度快吗？

我进行了一场测试对比：分别使用swift 和 objective-c 新建了命令行程序，程序如下： swift: let high = 1000_0000 let date1 = Date() debugPrint("(date1 ... :date1]); OC测试结果：显然，OC比Swift快很多所以Swift到底快在哪？...

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

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708 views

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tensorflow - How to load a model in Google Apps Script

I have been tasked to create a machine learning model that runs on Google Cloud. I have seen the following links ... in a spreadsheet/SQL for admin users to review regularly....

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

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bash - Derive signing key for AWS S3

I am trying to derive signing key with signature version 4 for AWS S3. I am trying to figure out what should ... ("aws4_request", kService); return kSigning; } from AWS docs...

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

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277 views

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deployment - I dont can deploy on heroku

I want to deploy, but it still dont work. There is a bug with discordjs / opus. I do not know why Here is the error Code: https://pastebin.com/qwkRGxNZ...

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

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正则中22是什么意思？

在正则中22是禁止输入的意思？...

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

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283 views

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Python Script for Local Repository and Cherry-Pick for specific commit GIT

I want to create a python script for making local repository and I have no idea how to do this, after local repository ... to do cherry-pick for specific commit. Any tips for me ?...

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

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454 views

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laravel excel如何修改excel文件？

需求定义导入数据的excel模板文件导入数据之前需要修改下此模板文件，然后让用户下载用户下载此模板，并且填充数据上传导入问题如何实现修改一个excel文件的功能？当前使用的库为maatwebsite/excel 3.1 https://github.com/Maatwebsite/Laravel-Excel...

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

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为什么我的博客(hexo)友链页面手机无法显示完全？

注意：这里是用真机访问(模拟器也行)，而不是调整浏览器UA！不知道为什么会这样？！网址(非广告)：友情链接|时过境迁Wayne博客...

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

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sql server - SQL Modify Column name Case changes

I have a table with column name as Forgotpassword. I am facing issues in the c# code because the model is named ... . Is there any way to alter columns based on sensitiveness....

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

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161 views

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vue 如何添加data

面试的时候遇到下面这个问题：已经在data 里声明了几个变量了，但是现在，想要动态的去添加变量比如 data(){ return{ msg:"外面在下雨", info:"雨很大" } } 但是，现在想在某个方法里 ... ？新增后变成这样 data(){ return{ msg:"外面在下雨", info:"雨很大", list:"how" } }...

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

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c++ - handle HPDF_FAILD_TO_ALLOC_MEM during creation of pdf file

I am using libharu library for creating pdf and getting following into system hPDF error error_no=4117, detail_no=0 which ... is empty" << endl; #value of currentpage is 0...

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

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386 views

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pytorch程序,执行到最后，程序不能停止

问题描述这段代码是一个演示使用pytorch训练线性模型的demo 代码的目标：使用pytorch，训练一个线性模型(y = wx + b) 程序运行的结果是能够正常的训练，但是程序运行到最后一行，停不下 ... == 0: print('loss.data.numpy = ', loss.data.numpy()); print('运行结束...')...

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

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Cannot install any package in Julia

I had used Julia some months back for a project, and didn't use it since. I hadn't faced problems back then. But now, ... 91.4 [d330b81b] PyPlot v2.9.0 [2913bbd2] StatsBase v0.33.0...

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

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405 views

1 answer

python - Why is Dask to_csv saving files in parts?

Preamble for context: I have a sample csv file that has more columns than rows (~300 vs 190), I'm trying to learn ... : Can I run value_counts() for all columns in a better way?...

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

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请教一个关于java参数传递的问题

本人java初学者，最近学习到异常处理，在试着自己写一个异常处理时遇到了一个问题我想通过无参构造方法直接把 message传给父类的含参构造方法这个会报错，我搜了一下这个问题，大概是由于message这个实例变量是在构造方法执行 ... 造方法，但按前面的理解不应该是调用子类构造方法前必需先调用父类的构造方法吗？这时message是怎么传给父类的呢？...

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

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202 views

1 answer

sql - Iterating through two listbox in Access VBA

I have a form with a text input and two multiselect list boxes. I am using the selected items in the list boxes ... in either/both list boxes is where I am having trouble....

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

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125 views

1 answer

vue插件问题

问题有点蠢，但我一时半会转不过来，求大神指教我在写一个vue插件，插件项目需要引入另一个插件B的支持，于是我npm install 插件名，安装好后，发现 ... need an appropriate loader to handle this file type. (Source code omitted for this binary file)...

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

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290 views

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TwitterClientCore with azure stream analysis

I was trying to use the twitterclientcore.The build was done correctly but when iam running the dotnet run im ... in C:TwitterClientCoreProgram.cs:line 40 Please could you help...

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

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152 views

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vue使用moment的问题

在mian.js引入: 页面使用: 但是没有生效，传参给后端时还是UTC时间后来发现我使用了moment，但是还是在报未使用不知道哪儿出了问题o(╥﹏╥)o 获取时间：打印：传值：...

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

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