Recent questions in Technique[技术]

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php - 如何检查字符串是否包含特定单词？(How do I check if a string contains a specific word?)

Consider: (考虑：) $a = 'How are you?'; if ($a contains 'are') echo 'true'; Suppose I have the code above, what ... if ($a contains 'are')什么？) ask by community wiki translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - 如何从值中删除数组中的项目？(How to remove item from array by value?)

Is there a method to remove an item from a JavaScript array? (有没有一种方法可以从JavaScript数组中删除项目？) Given an array: (给定一个数组：) var ... ，而我需要一些东西才能通过其值删除项目 ) ask by MacMac translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - 全部选择/取消选择按钮(All select /deselect button)

enter image description here I want to make n 'all select' button in datagridview. (在此处输入图像描述，我想在datagridview中使n个全部选择按 ... Cells[0].Value = true; } } ask by ??? translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - 在knitr :: kable（）中设置自适应col.names(Set adaptive col.names in knitr::kable())

Please consider the following. (请考虑以下内容 )I started writing reproducible documents in with R markdown and want some output for a ... 列都抛出错误还不存在 ) ask by Frederick translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - React Select-道具的setState(React Select - setState of prop)

I am trying to set the state of my brandSelect prop in ReactJS using React Select however I am confused to how this can be ... 上，但这是行不通的 ) ask by Nick Maddren translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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linux - 如何编写Shell脚本以基于输入过滤数据(How to write a shell script to filter data based on the input)

Below is the scenario: (下面是方案：) Given a file that contains a log (timestamp, customer id, page id), please write a script ... 写逻辑以根据客户输入过滤数据？) ask by user2075759 translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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windows - 如何从证书和私钥创建.pfx文件？(How to create .pfx file from certificate and private key?)

I need .pfx file to install https on website on IIS. (我需要.pfx文件在IIS上的网站上安装https ) I have two separate files: certificate (.cer ... 一点或C＃以编程方式执行此操作的示例？) ask by jlp translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - 如何在Pyspark RDD中逐行遍历每个项目并将其转换为键？使用地图功能？(How can I loop over every item a row in Pyspark RDD and turn them into keys? Use map function?)

So, firstly I have some inputs like this: (所以，首先我有一些像这样的输入：) A:<phone1,phone2>,<location1>,<email1> B:<phone1>,< ... any other way? (还有其他办法吗？) ask by GDJi translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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angularjs - angular.service vs angular.factory(angular.service vs angular.factory)

I have seen both angular.factory() and angular.service() used to declare services; (我见过用于声明服务的angular.factory（）和angular.service（） ... （假设他们做不同的事情）？) ask by jacob translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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548 views

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javascript - 四舍五入至小数点后两位（仅在必要时）(Round to at most 2 decimal places (only if necessary))

I'd like to round at most 2 decimal places, but only if necessary . (我想最多舍入小数点后两位，但仅在必要时才可以 ) ... JavaScript? (如何在JavaScript中执行此操作？) ask by stinkycheeseman translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ruby - 如何安装特定版本的ruby gem？(How to install a specific version of a ruby gem?)

使用命令行gem工具，如何安装特定版本的gem？ ask by mjs translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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233 views

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sql - 如何从SQL Server 2008中的选择查询结果创建表[重复](How to create a table from select query result in SQL Server 2008 [duplicate])

This question already has an answer here: (这个问题在这里已有答案：) How to create table using select query in SQL Server? (如何在SQL ... (关键字 AS 附近的语法不正确) ask by yogesh9239 translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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sql - 写一个带有两个小数位的SQL服务器的数字(Write a number with two decimal places SQL server)

如何为sql server编写带小数位数的两位数？ ask by translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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amazon-web-services - 停止时如何自动运行ECS Task(How to automatically run ECS Task when it stopes)

I am looking for information about the possibility to automatically run a given ECS task when it stopes working. (我正在寻找有 ... ） )Thank you (谢谢) ask by mostaszewski translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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php - PHP中的startsWith（）和endsWith（）函数(startsWith() and endsWith() functions in PHP)

How can I write two functions that would take a string and return if it starts with the specified character/string or ... ); //Returns true ask by Click Upvote translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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190 views

1 answer

android - 将像素转换为dp(Converting pixels to dp)

I have created my application with the height and width given in pixels for a Pantech device whose resolution is 480x800. (我 ... ? (有什么建议？) ask by Indhu translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python-3.x - 运行烧瓶应用程序时遇到问题(Having trouble running flask application)

I am new to using Flask. (我是使用Flask的新手 )Tried to run the basic flask app but results in neither an error nor any output. ... Please. (有人可以帮我吗，请 ) ask by Ann Mary translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - 向字典添加新键？(Add new keys to a dictionary?)

Is it possible to add a key to a Python dictionary after it has been created? (创建密钥后，是否可以向Python字典添加密钥？)It doesn't ... method. (它似乎没有.add()方法 ) ask by lfaraone translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python-3.x - 可视化递归的展开和收缩过程(Visualize the process of expand and contraction of recursion)

I am practicing Exercise 1.17 of SICP (我正在练习SICP的练习1.17) #+begin_src ipython :session alinbx :results output def fast_mul(a, b ... * (3 + 2 * 3) 21 ask by Algebra translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer

javascript - 如何将逗号分隔的字符串转换为数组？(How to convert a comma separated string to an array?)

I have a comma separated string that I want to convert into an array, so I can loop through it. (我有一个逗号分隔的字符串，我想将其转换成数组， ... 想用逗号将其分割，然后将其存储在数组中 ) ask by Blankman translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - 如何将文件逐行读取到列表中？(How to read a file line-by-line into a list?)

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 ... 读取文件，并将每行追加到列表的末尾 ) ask by Julie Raswick translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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sql - 获得插入行身份的最佳方法？(Best way to get identity of inserted row?)

What is the best way to get IDENTITY of inserted row? (什么是获得最佳方式IDENTITY插排的？) I know about @@IDENTITY and IDENT_CURRENT and ... 这些差异以及何时使用它们吗？) ask by Oded translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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488 views

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git - 将分支指针移动到不同的提交而不签出(Move branch pointer to different commit without checkout)

To move the branch pointer of a checked out branch, one can use the git reset --hard command. (要移动已签出分支的分支指针，可以使用git reset -- ... （保留所有其他东西，如跟踪的远程分支）？) ask by Mot translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ruby-on-rails - 如何回滚特定的迁移？(How to rollback a specific migration?)

I have the following migration file db\migrate\20100905201547_create_blocks.rb (我有以下迁移文件db\migrate\20100905201547_create_blocks.rb) ... 迁移文件？) ask by AnApprentice translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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sql - SQL Server：如何加入第一行(SQL Server: How to Join to first row)

I'll use a concrete, but hypothetical, example. (我将使用一个具体的但假设的示例 ) Each Order normally has only one line item : (每个订单通常只有一 ... (大概是因为内部选择看不到外部表 ) ask by Ian Boyd translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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sql - 获取Oracle中所有表的列表？(Get list of all tables in Oracle?)

如何查询Oracle数据库以显示其中所有表的名称？ ask by vitule translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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248 views

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sql - 在SQL表中查找重复值(Finding duplicate values in a SQL table)

It's easy to find duplicates with one field: (使用一个字段很容易找到duplicates ：) SELECT name, COUNT(email) FROM users GROUP BY email HAVING ... 重复项，所以我需要先找到它们 ) ask by Alex translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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171 views

1 answer

php - 在PHP数组上更改值(Chaning the values on a PHP array)

What I want is when the user enters some text on an alert input to be shown as in the picture below on a php created array: ... 在数组的奇数行上显示用户输入）) ask by Costas_ translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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