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php - cURL错误＃：无法解析主机：-PHP(cURL Error #:Could not resolve host: - PHP)

I have problem with this code: (我对此代码有疑问：) function get_request($url,$header_array){ $curl = curl_init(); curl_setopt_array($curl, ... 有谁能帮我解决这个错误：) ask by doki translate from so...

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

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492 views

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windows - 如何在Windows命令行上以合适的格式获取当前日期/时间以在文件/文件夹名称中使用？(How do I get current date/time on the Windows command line in a suitable format for usage in a file/folder name?)

Update: Now that it's 2016 I'd use PowerShell for this unless there's a really compelling backwards-compatible reason for it, ... 以很好地格式化日期） ) ask by Rory translate from so...

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

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637 views

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amp-html - 如何隐藏AMP中打开的下拉菜单(How can I hide the opened dropdown in AMP)

I'm playing around with this navbar example https://www.ampstart.com/render/navbar-with-sidebar.amp#amp=1 (我在玩这个导航栏示例https://www ... 是否可以关闭打开的下拉菜单？) ask by exotec translate from so...

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

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519 views

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javascript - 手机上缩放的浏览器窗口上的固定位置div(Fixed position div on zoomed browser window on mobile)

When zooming an HTML page in a desktop browser a fixed position div will scale like the rest of the page and keep its ... 对Android Chrome更加感兴趣 ) ask by Piwakawaka translate from so...

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

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464 views

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git - 如何更新GitHub分叉存储库？(How do I update a GitHub forked repository?)

I recently forked a project and applied several fixes. (我最近分叉了一个项目，并应用了多个修复程序 )I then created a pull request which ... update button? (还是有更新按钮？) ask by Lea Hayes translate from so...

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

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473 views

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mysql - INNER JOIN，LEFT JOIN，RIGHT JOIN和FULL JOIN有什么区别？ [重复](What's the difference between INNER JOIN, LEFT JOIN, RIGHT JOIN and FULL JOIN? [duplicate])

This question already has an answer here: (这个问题已经在这里有了答案：) What is the difference between INNER JOIN and OUTER ... RIGHT JOIN和FULL JOIN什么区别？) ask by Lion King translate from so...

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

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ios - Xcode错误“找不到开发人员磁盘映像”(Xcode error “Could not find Developer Disk Image”)

When attempting to run a build on a connected iOS device in Xcode I get the error: (当尝试在Xcode中在连接的iOS设备上运行构建时，出现错误：) ... (我在哪里可以找到它或如何固定它？) ask by Nathan Kramer translate from so...

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

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java - 是否finally块总是用Java执行？(Does a finally block always get executed in Java?)

Considering this code, can I be absolutely sure that the finally block always executes, no matter what something() is? (考虑 ... printed out"); } ask by jonny five translate from so...

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

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android - 如何在RecyclerView中的项目之间添加分隔线和空格？(How to add dividers and spaces between items in RecyclerView?)

This is an example of how it could have been done previously in the ListView class, using the divider and dividerHeight parameters ... 方法实现我的目标？) ask by EyesClear translate from so...

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

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linux - 如何更改apache服务器的根目录？ [关闭](How do I change the root directory of an apache server? [closed])

Does anyone know how to change the document root of the Apache server? (有谁知道如何更改Apache服务器的文档根目录？)I ... myusername/projects_folder并且工作正常 ) ask by Spencer Cooley translate from so...

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

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299 views

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java - 由于对所需库rt.jar的限制而导致对类的访问限制？(Access restriction on class due to restriction on required library rt.jar?)

I'm attempting to compile Java 1.4 code that was created by IBM's WSDL2Java on Java5 without recreating the stubs and saw this error ... (我最好重新创建存根吗？) ask by sal translate from so...

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

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379 views

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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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postgresql - Postgres SQL性能上限(Postgres SQL performance ceiling)

I have a flat table with ~4M rows and a multiindex on 5 columns. (我有一个带有?4M行和5列上的multiindex的平面表 )Simple ... .083 ms Execution time: 0.309 ms ask by Bishonen_PL translate from so...

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

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550 views

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git - 使用Git时如何解决权限被拒绝（公钥）错误？(How to solve Permission denied (publickey) error when using Git?)

I'm on Mac Snow Leopard and I just installed git . (我在Mac Snow Leopard上，并且刚刚安装了git ) I just tried (我刚试过) git clone ... 而不设置密码，但是仍然存在相同的错误 ) ask by teepusink translate from so...

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

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355 views

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angular - 如何创建具有相同属性\方法的组件(How to create components with the same propertiesmethods)

Not even sure it is feasible in angular: I would like to create components which all have few same properties and methods, some ... feasible ? (可行吗？) ask by Guy E translate from so...

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

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318 views

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oracle - 删除客户的步骤(Procedure to delete a customer)

I have the following procedure, which is supposed to delete a specific customer. (我有以下步骤，应该删除特定的客户 )I keep ... -00488： CUSTOMER.CUSTOMER_NUM 必须为类型) ask by Alan translate from so...

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

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399 views

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jquery - 关闭Bootstrap模态(Close Bootstrap Modal)

I have a bootstrap modal dialog box that I want to show initially, then when the user clicks on the page, it disappears. (我有一个我想要 ... 何在演示中将背景变为灰色？) ask by Nick B translate from so...

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

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ios - 如何使用Windows开发机为iPhone开发？(How can I develop for iPhone using a Windows development machine?)

Is there any way to tinker with the iPhone SDK on a Windows machine? (有什么办法可以在Windows计算机上修补iPhone SDK？)Are there plans ... 我不太确定这样做的合法性 ) 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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512 views

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amazon-s3 - 哪种AWS S3检索模型将具有成本效益？(Which AWS S3 retrieval model would be cost-effecient?)

I am looking at this question and have a different opinion: (我在看这个问题，并有不同的看法：) A company is to run a service on AWS to ... 的费用将弥补Expedited检索服务的额外费用 ) ask by mdivk translate from so...

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

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375 views

1 answer

python - Python-从Json请求中删除重复项(Python - Remove Duplicates From Json Requests)

Can't find a solution to this, what i want to do is simply remove duplicates whenever i call/ request information from ... jsoninfo) x+=1 test() ask by theLearner translate from so...

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

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315 views

1 answer

c# - 在C＃中调用基本构造函数(Calling the base constructor in C#)

If I inherit from a base class and want to pass something from the constructor of the inherited class to the constructor of ... 消息传递给基本Exception类 ) ask by lomaxx translate from so...

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

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243 views

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scala - 如何在Scala中合并多个导入？(How to merge multiple imports in scala?)

Assume I have a library a.com. (假设我有一个图书馆a.com )Everytime and in each file, I need to import a lot of package like ( ... (反正有防止这种情况发生的方法吗？) ask by worldterminator translate from so...

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

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148 views

1 answer

java - 为什么RecyclerView没有onItemClickListener（）？ [关闭](Why doesn't RecyclerView have onItemClickListener()? [closed])

Closed) . 已关闭) ) This question is opinion-based. 这个问题是基于意见的 ) It is not currently accepting answers. 它当前不接受答案 ) Learn ... (是否存在性能问题或其他问题？) ask by Tarun Varshney translate from so...

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

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211 views

1 answer

javascript - 功能之前，感叹号有什么作用？(What does the exclamation mark do before the function?)

!function () {}(); ask by Sebastian Otto translate from so...

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

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471 views

1 answer

string - 如何从Bash变量中修剪空格？(How to trim whitespace from a Bash variable?)

I have a shell script with this code: (我有一个带有以下代码的shell脚本：) var=`hg st -R "$path"` if [ -n "$var" ]; then echo $var ... ，但是我想认为有一个更优雅的解决方案 ) 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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153 views

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python - Python中的null对象？(null object in Python?)

我如何在Python中引用null对象？ ask by Lizard 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

r - 空字符串用rhdf5写入数据(Empty strings writing data with rhdf5)

I'm having trouble writing strings to groups in hdf5 files using rhdf5 using the low-level API, and specifically the functions ... ，这是我做错了什么？) ask by Mittenchops translate from so...

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

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258 views

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c++ - C ++中的POD类型是什么？(What are POD types in C++?)

I've come across this term POD-type a few times. (我有几次遇到这个术语POD型。)What does it mean? (这是什么意思？) ask by paxos1977 translate from so...

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

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