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macos - 链接到pdf文档的外部多媒体文件可以在macOS pdf-viewer预览版中启动外部应用程序吗？(Can external multimedia files linked to pdf documents launch external applications in the macOS pdf-viewer Preview?)

I have generated a beamer pdf containing a link to an external player in order to play a sound. (我已经生成了包含与 ... test}{sound.wav} end{document} ask by Leptoceratops translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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475 views

1 answer

jquery - jQuery Ajax错误处理，显示自定义异常消息(jQuery Ajax error handling, show custom exception messages)

Is there some way I can show custom exception messages as an alert in my jQuery AJAX error message? (有没有什么方法可以在我的jQuery AJAX错误 ... ? (我该怎么做才能解决这个问题？) ask by translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

307 views

1 answer

windows - Node.js / Windows错误：ENOENT，stat'C： Users RT AppData Roaming npm'(Node.js/Windows error: ENOENT, stat 'C:UsersRTAppDataRoaming pm')

I have Windows 7 32-bit. (我有Windows 7 32位 )I installed the latest Node.js 32 bit. (我安装了最新的Node.js 32位 )When I ... does one resolve it? (如何解决它？) ask by tryasko translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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411 views

1 answer

linux - grep，但只有特定的文件扩展名(grep, but only certain file extensions)

I am working on writing some scripts to grep certain directories, but these directories contain all sorts of file types. (我正在编写一些脚 ... 如何添加特定的文件扩展名？) ask by Jason translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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390 views

1 answer

c - 查找具有最多突变的最长回文DNA子序列(Find the longest palindromic DNA sub-sequence that has the most mutations on it)

I've been trying to do a Dynamic Programming assignment for university but I had no success so far. (我一直在尝试大学的动态编程任务，但到目前为 ... . (任何帮助表示赞赏，谢谢 ) ask by c-orlando translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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323 views

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python - 过去n个日期中熊猫的真实值总和(Sum of true values over past n dates in pandas)

I have a dataframe of several thousand rows with columns of geography, response_dates and True/False for ... name='Past_4_dates_sum_of_true') ask by JamesMiller translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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155 views

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java - Java，参数中有3个点(Java, 3 dots in parameters)

What do the 3 dots in the following method mean? (以下方法中的三个点是什么意思？) public void myMethod(String... strings){ // method body } ask by Vikram translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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424 views

1 answer

objective-c - 如何为项目中的单个文件禁用ARC？(How can I disable ARC for a single file in a project?)

I am using ARC successfully in my project. (我在项目中成功使用了ARC )However, I have encountered a few files (eg, in unit ... file basis? (如何按文件禁用ARC？) ask by casademora translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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162 views

1 answer

sql - 显示最后一名被录用的员工(show the last employee who was hired)

I need to find most recent hired employees for example i have table (我需要找到最近雇用的员工，例如我有桌子) INPUT (输入) ---------------- ... --------------------- ask by Женя Касьян translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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257 views

1 answer

bash - 如何在Bash中将变量设置为命令的输出？(How do I set a variable to the output of a command in Bash?)

I have a pretty simple script that is something like the following: (我有一个非常简单的脚本，如下所示：) #!/bin/bash VAR1="$1" MOREF='sudo run ... 其保存到变量，然后在屏幕上输出该变量？) ask by John translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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176 views

1 answer

html - 在HTML文件中包含另一个HTML文件(Include another HTML file in a HTML file)

I have 2 HTML files, suppose a.html and b.html . (我有2个HTML文件，假设a.html和b.html )In a.html I want to include b.html . ( ... file? (我们如何在*.html文件中执行此操作？) ask by lolo translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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459 views

1 answer

git - 如何确定最初克隆本地Git存储库的URL？(How can I determine the URL that a local Git repository was originally cloned from?)

I pulled a project from GitHub a few days ago. (几天前我从GitHub上撤了一个项目 )I've since discovered that there are several forks on GitHub, ... ? (如何确定我拉出的哪个叉子？) ask by Tim translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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598 views

1 answer

javascript - 猫头鹰旋转木马固定高度？(OWL CAROUSEL fixed height?)

I'm currently using Owl Carousel and am wondering if there's a way to adjust image sizes so that the height of each image is ... : 0 } } }) }) ask by abc0213 translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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291 views

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php - 我对如何从另一个表中获取列有问题(i have a problem with how to get a column frrom another table)

This is my table and data of each table (这是我的表和每个表的数据) Table reservation : (餐桌reservation ：) +------- ... " ) or die(mysqli_error($con))`; ask by joesantriani translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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381 views

1 answer

angular - Angular 2-取消keyUp事件(Angular 2 - Debouncing a keyUp event)

How can I debounce a function which gets called on an "keyUp" event? (如何对在 keyUp 事件上调用的函数进行反跳操作？) Here is my code: ( ... 是我还没有找到如何将其放在我的keyUp事件中 ) ask by Nicolas translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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152 views

1 answer

php - 如何防止PHP中进行SQL注入？(How can I prevent SQL injection in PHP?)

This post is a Community Wiki) . 这篇文章是社区维基) ) Edit existing answers to improve this post. 编辑现有答案以改善此职位 ) It ... happening? (如何防止这种情况的发生？) ask by community wiki translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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573 views

1 answer

c++ - 将32位循环计数器替换为64位会在Intel CPU上使用_mm_popcnt_u64引起疯狂的性能偏差(Replacing a 32-bit loop counter with 64-bit introduces crazy performance deviations with _mm_popcnt_u64 on Intel CPUs)

I was looking for the fastest way to popcount large arrays of data. (我一直在寻找最快的方法来popcount大量数据的数量 )I ... How can replacing a non-constant by a constant buffer size trigger l...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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194 views

1 answer

java - 整数最大值(max value of integer)

In C, the integer (for 32 bit machine) is 32 bits, and it ranges from -32,768 to +32,767. (在C中，整数（对于32位计算 ... someone explain this? (有人可以解释吗？) ask by stackuser translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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547 views

1 answer

pandas - 将Pandas数据框中的列表列扩展为单列的快速方法(Fast way to expand a column of lists in pandas data frame to a single column)

I have a data frame with text and sentiment score corresponding to it. (我有一个数据框，其中包含与之对应的文本和情感评分 )I've ... description here (在此处输入图片说明) ask by White Walker translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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430 views

1 answer

html - 如何在更大的div内使图像中心（垂直和水平）居中[重复](How to make an image center (vertically & horizontally) inside a bigger div [duplicate])

This question already has answers here) : 这个问题已经在这里有了答案) ：) CSS center text (horizontally and vertically) inside a div block ( ... .. (但是垂直对齐是个问题 ) ask by Shameem translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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248 views

1 answer

python - 如何集成Python mido和asyncio？(How can I integrate Python mido and asyncio?)

I have a device which does file I/O over MIDI. (我有一台可以通过MIDI文件进行I / O的设备 )I have a script using Mido that downloads ... 我不确定mido回调函数如何获取该对象 ) ask by Mark Green translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

475 views

1 answer

c# - 对在PowerShell中添加程序集以使用.NET类感到困惑(Confused about adding assemblies in PowerShell for using .NET Classes)

I would appreciate some clarification. (我希望澄清一下 )When using a .NET Framework Class in PowerShell we sometimes have to load the ... 切的问候，) John (约翰) ask by John translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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308 views

1 answer

python - 如何列出目录的所有文件？(How do I list all files of a directory?)

This post is a Community Wiki) . 这篇文章是社区维基) ) Edit existing answers to improve this post. 编辑现有答案以改善此职位 ) It is not ... 列出目录的所有文件并将它们添加到list ？) ask by duhhunjonn translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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710 views

1 answer

python - 服务器在终端中运行，但未显示在页面中。服务Flask应用“应用”（延迟加载）(Server runs in terminal but doesn't appear in the page. Serving Flask app “application” (lazy loading))

Serving Flask app "application" (lazy loading) (服务Flask应用应用（延迟加载）) Environment: production WARNING: Do not use the ... 问题是什么？) ask by Chelsea Ip Tze Hwan translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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185 views

1 answer

ruby - ％w（数组）是什么意思？(What does %w(array) mean?)

I'm looking at the documentation for FileUtils. (我正在查看FileUtils的文档 )I'm confused by the following line: (我对以下几行感到困惑：) ... (你能指点我的文件吗？) ask by Dane O'Connor translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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544 views

1 answer

c# - 计时器在C＃Visual Studio 2019中疯了吗？(Has timer gone beserk in C# Visual Studio 2019?)

To keep it simple. (为了简单起见 ) In VS2019 I have created 1 form (frm1) with dimensions 500x500 and a button. (在VS2019中， ... ideas?? (有任何想法吗？？) ask by Dimitris Platis translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

405 views

1 answer

google sheets - Need help nesting multiple formulas

I have three functions that will return the answer that I'm looking for but I don't ... .google.com/spreadsheets/d/1l2dXCEE0enTRBzBZEwjN1Fj9-ovPjsi75WvTdgK7_Zg/edit?usp=sharing...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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132 views

1 answer

python - Write in database on exception

I have the following code, if the try catch statement executed successfully then I write in my database model success ... in") models.SuncRun(success=False).save() raise Exception...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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