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638 views

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networking - 如何获取本地网络中所有有效IP地址的列表？ [关闭](How to get a list of all valid IP addresses in a local network? [closed])

Is there a way to get a list of all valid IP addresses in a local network? (有没有办法获取本地网络中所有有效IP地址的列表？) I mean all IP ... 是每个用户在网络中使用的所有IP地址 ) ask by M.J.Ahmadi translate from so...

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

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355 views

1 answer

html - CSS固定宽度在一个范围内(CSS fixed width in a span)

Within an unordered list: (在无序列表中：) <li><span></span> The lazy dog.</li> <li><span>AND</span> The lazy cat.</li> <li>< ... 在一个额外的元素中，但我必须仔细检查 ) ask by jason saldo translate from so...

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

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480 views

1 answer

linux - 是否有命令列出所有Unix组名？ [关闭](Is there a command to list all Unix group names? [closed])

I know there is the /etc/group file that lists all users groups. (我知道有/etc/group文件列出了所有用户组 ) I would like to know if ... 创建一个列出Linux帐户组名的管理员网页 ) ask by cavila translate from so...

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

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488 views

1 answer

r - 多列频率表是否存在循环以生成条形图？(Is there a loop for frequency table of multiple columns to generate bar plots?)

I have the following data: (我有以下数据：) df1<-read.table(text="Class1 Class2 Class3 M1 M2 M3 Z1 Z2 Z3 C E D Apple Apple ... 先映射变量，然后使用lappy运行这些图 ) ask by User20100 translate from so...

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

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442 views

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css - 如何在同一元素上组合背景图像和CSS3渐变？(How do I combine a background-image and CSS3 gradient on the same element?)

如何使用CSS3渐变作为background-color ，然后应用background-image以应用某种透光的纹理？ ask by Ronald translate from so...

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

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429 views

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php - 花很多时间从oracle获取数据并显示在php中(taking much time to fetch data from oracle and show up at php)

I am working with php and oracle to get data from oracle database and show up at php table with php code by connecting with ... 取得结果吗？)Thanks (谢谢) ask by mdkamrul 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

css - 类的第一个元素的CSS选择器(CSS selector for first element with class)

I have a bunch of elements with a class name red , but I can't seem to select the first element with the class="red" using the ... 该如何针对red班级的第一个孩子？) ask by Rajat 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

php - 无法在docker-compose（php和MariaDB）中连接到数据库服务器(Cannot not connect to database server within docker-compose (php and MariaDB))

I've built a docker-compose file that creates 2 services (PHP and MariaDB). (我已经构建了一个docker-compose文件 ... laravel-with-docker-compose-de2190569084) ask by Brotzka translate from so...

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

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504 views

1 answer

bash - 在文件中查找并替换与另一个文件中的字符串匹配的子字符串(find and replace substrings in a file which match strings in another file)

I have two txt files: File1 is a tsv with 9 columns. (我有两个txt文件： File1是具有9列的tsv )Following is its first row ( ... ? (有什么帮助吗？) ask by Mani Ghani poor Samami translate from so...

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

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374 views

1 answer

sql - 如何避免SQL中的“被零除”错误？(How to avoid the “divide by zero” error in SQL?)

I have this error message: (我有此错误信息：) Msg 8134, Level 16, State 1, Line 1 Divide by zero error encountered. (消息8134，级 ... 的方法，或者如何执行？) ask by Henrik Staun Poulsen translate from so...

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

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326 views

1 answer

.net - 重写GetHashCode的最佳算法是什么？(What is the best algorithm for overriding GetHashCode?)

In .NET, the GetHashCode method is used in a lot of places throughout the .NET base class libraries. (在.NET中，整个.NET基类库的许多地方都 ... 法或最佳实践，因此我不会降低性能？) ask by bitbonk translate from so...

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

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156 views

1 answer

javascript - 将字符串转换为整数？(Convert a string to an integer?)

如何在JavaScript中将字符串转换为整数？ ask by translate from so...

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

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492 views

1 answer

javascript - 如何使用JavaScript获取文本输入字段的值？(How do I get the value of text input field using JavaScript?)

I am working on a search with JavaScript. (我正在使用JavaScript进行搜索 )I would use a form, but it messes up something else ... (如何从文本字段获取值到JavaScript？) ask by user979331 translate from so...

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

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368 views

1 answer

java - 如何使用Mockito模拟void方法(How to mock void methods with Mockito)

How to mock methods with void return type? (如何用void返回类型模拟方法？) I implemented an observer pattern but I can't mock it ... them. (并根据他们做出断言 ) ask by ibrahimyilmaz translate from so...

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

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418 views

1 answer

mysql - 我如何找到MySQL my.cnf位置(How do I find the MySQL my.cnf location)

是否有MySQL命令来定位my.cnf配置文件，类似于PHP的phpinfo()如何定位其php.ini ？ ask by robinmag translate from so...

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

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254 views

1 answer

php - 是传入的帖子Curl或html表单(Is incoming post Curl or html form)

有没有一种方法可以确定传入的POST是来自html表单发布还是来自服务器到服务器的发布（例如，curl）？ ask by user1910437 translate from so...

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

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419 views

1 answer

javascript - “严格使用”在JavaScript中有什么作用，其背后的原因是什么？(What does “use strict” do in JavaScript, and what is the reasoning behind it?)

Recently, I ran some of my JavaScript code through Crockford's JSLint , and it gave the following error: (最近，我通过Crockford的 ... 字符串还是将来使用？) ask by Mark Rogers translate from so...

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

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683 views

1 answer

timestamp - 在PowerBI（桌面）中，如何对每天（或每周或每月）的时间戳分组？(In PowerBI (Desktop), how to group timestamp per day (or week or month)?)

On PowerBI (Desktop), I am working with a file containing multiple rows and 2 columns. (在PowerBI（桌面）上，我正在处理包含多行和2列的文件 ) ... please? (有人可以帮我吗？) ask by Fred. Chen. translate from so...

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

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263 views

1 answer

html - 如何使用 <br> 在引导卡中标记？(How to use <br> tag in bootstrap card?)

I want to break the line after Other online payment. (我想在其他在线付款后中断 )but when I added <br> tag this starts making ... li> </ul> </div> </div> ask by UmerLachi translate from so...

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

0 votes

414 views

1 answer

php - 您可以像使用JavaScript等一样在PHP中具有非类对象吗？(Can you have non class objects in PHP as you can with JavaScript etc?)

I have the following data structure. (我有以下数据结构 )I need an array of movies. (我需要看电影 )Each movie has a title, rating ... (您是否可以像JavaScript那样拥有非类对象？) ask by Evanss translate from so...

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

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413 views

1 answer

java - 如何使用流或其他更好的方法来解析字符串？(How to parse strings using streams or other better way?)

I have a HashMap and I want to convert data in it to a Response object. (我有一个HashMap，我想将其中的数据转换为Response对象 ... ; Long qty; // getters and setters ask by tech_ques translate from so...

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

0 votes

276 views

1 answer

c++ - 如何描述Linux上运行的C ++代码？(How can I profile C++ code running on Linux?)

I have a C++ application, running on Linux, which I'm in the process of optimizing. (我有一个正在Linux上运行的C ++应用程序，我正在对其进 ... 如何确定我的代码哪些区域运行缓慢？) ask by Gabriel Isenberg translate from so...

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

0 votes

308 views

1 answer

c# - 如何发出HTTP POST Web请求(How to make HTTP POST web request)

Canonical (典范) How can I make an HTTP request and send some data using the POST method? (如何使用 POST 方法发出HTTP请求并发送一些数据？ ... 可以执行GET请求，但不知道如何进行POST ) ask by Hooch translate from so...

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

0 votes

337 views

1 answer

javascript - 如何让浏览器导航到JavaScript中的URL [重复](How to get the browser to navigate to URL in JavaScript [duplicate])

This question already has an answer here: (这个问题在这里已有答案：) How do I redirect to another webpage? (如何重定向到其他网页？)58 answers (58 ... 确，现代，跨浏览器，安全）方法是什么？) ask by jjujuma translate from so...

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

0 votes

533 views

1 answer

git - 如何从GitHub下载ZIP格式的源代码？(How to download source in ZIP format from GitHub?)

I see something strange like: (我看到一些奇怪的东西：) http://github.com/zoul/Finch.git (http://github.com/zoul/Finch.git) ... ZIP文件呢？这个世界不够复杂吗？）) ask by dontWatchMyProfile translate from so...

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

0 votes

225 views

1 answer

python - 如何在Python中弹出一次列表n次？(How to pop() a list n times in Python?)

I have a photo chooser function that counts the number of files in a given directory and makes a list of them. (我有一个图片 ... ) + '.jpg')) return photos ask by Timur translate from so...

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

0 votes

292 views

1 answer

git - 是否进行“ git导出”（如“ svn导出”）？(Do a “git export” (like “svn export”)?)

I've been wondering whether there is a good "git export" solution that creates a copy of a tree without the .git repository ... 义，选项2似乎更好 ) ask by Greg Hewgill translate from so...

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

0 votes

325 views

0 answers

javascript - 如何在JavaScript中检查“未定义”？ [重复](How to check for “undefined” in JavaScript? [duplicate])

This question already has an answer here: (这个问题已经在这里有了答案：) Detecting an undefined object property 42 answers ( ... this be in Try/Catch? ask by goodguys_activate translate from so...

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

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