Recent questions in Technique[技术]

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android - Kotlin：带有SoundPool的RecyclerView：行无声音单击(Kotlin:RecyclerView with SoundPool: no sound on rows click)

I am not getting any sound played when I click the RecyclerView rows. (单击RecyclerView行时，没有播放任何声音 )The sound slips are being ... 1, 0, 1F) } } ask by Joe Shamuraq translate from so...

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

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c++ - 为什么单独循环中的元素加法比组合循环中的要快得多？(Why are elementwise additions much faster in separate loops than in a combined loop?)

Suppose a1 , b1 , c1 , and d1 point to heap memory and my numerical code has the following core loop. (假设a1 ， b1 ， c1 ... 显示n不同值的FLOP / s ）) ask by Johannes Gerer translate from so...

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

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355 views

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bash - 如何在Bash脚本中迭代参数(How to iterate over arguments in a Bash script)

I have a complex command that I'd like to make a shell/bash script of. (我有一个复杂的命令，我想制作一个shell / bash脚本 )I can write it ... . (当然，我想处理其中包含空格的文件名 ) ask by Thelema translate from so...

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

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447 views

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python - 如何在Python中的同一行上打印变量和字符串？(How can I print variable and string on same line in Python?)

I am using python to work out how many children would be born in 5 years if a child was born every 7 seconds. (如果孩 ... would be: " births "births" ask by Bob Uni translate from so...

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

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460 views

1 answer

css - 背景颜色的不透明度，但不是文本[重复](Opacity of background-color, but not the text [duplicate])

This question already has an answer here: (这个问题在这里已有答案：) How do I give text or an image a transparent background using CSS? (如何使 ... 知道，所以我可以查看他们的代码） ) ask by Nir translate from so...

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

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127 views

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javascript - 按值复制数组(Copy array by value)

When copying an array in JavaScript to another array: (将JavaScript中的数组复制到另一个数组时：) var arr1 = ['a','b','c']; var arr2 = arr1; ... ? (如何复制数组以获取两个独立的数组？) ask by Dan translate from so...

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

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java - 在Java中实现单例模式的有效方法是什么？ [关闭](What is an efficient way to implement a singleton pattern in Java? [closed])

在Java中实现单例模式的有效方法是什么？ ask by Riyaz Mohammed Ibrahim translate from so...

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

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548 views

1 answer

c++ - 在A类C ++中初始化2D数组(Initializing 2D Array in A Class C++)

I am trying to initialize nums 2D array in a Class Construct . (我正在尝试在Class Construct初始化nums 2D数组 )I am using the default ... . (任何反馈将是巨大的 ) ask by Gorav Soni translate from so...

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

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169 views

1 answer

javascript - 如何显示JavaScript对象？(How can I display a JavaScript object?)

How do I display the content of a JavaScript object in a string format like when we alert a variable? (如何像alert变量一样以字符串格式显 ... . (我想显示对象的格式相同 ) ask by maxjackie translate from so...

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

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git - 如何获得最近提交的Git分支列表？(How can I get a list of Git branches, ordered by most recent commit?)

I want to get a list of all the branches in a Git repository with the "freshest" branches at the top, where the "freshest" ... 用一个命令完成所有这些？) ask by Joe White translate from so...

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

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546 views

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html - 如何获得任何URL或网页的Google缓存年龄？ [关闭](How can I get the Google cache age of any URL or web page? [closed])

Closed.) 关闭 )) This question is off-topic . 这个问题是题外话 ) It is not currently accepting answers. 它当前不接受答案 ) Want ... 哪里可以获得Google缓存的时间？) ask by Tokendra Kumar Sahu translate from so...

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

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380 views

1 answer

mysql - 如何使用MySQL中的命令行获取用户帐户列表？(How to get a list of user accounts using the command line in MySQL?)

I'm using the MySQL command line utility and can navigate through a database. (我正在使用MySQL命令行实用程序，可以在数据库中导航 )Now I ... (我正在使用MySQL版本5.4.1 ) ask by burntsugar translate from so...

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

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batch-file - 相同的启动命令，不同的结果(Same start command, different results)

I have a batch file containing (我有一个包含的批处理文件) start "" "https://translate.google.com/#view=home&op=translate&sl=en&tl= ... 件的功能吗？) Thanks (谢谢) ask by RealPommy translate from so...

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

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183 views

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java - 无法建立APK-Android Studio(Unable to build apk - android studio)

It's been a week now and we're unable to build the apk file for our andorid project. (到现在已经一周 ... util.atomic.LinkedQueueNode consumerNode; } ask by Ashish Ranjan translate from so...

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

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223 views

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

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291 views

1 answer

javascript - 如何异步上传文件？(How can I upload files asynchronously?)

I would like to upload a file asynchronously with jQuery. (我想用jQuery异步上传文件 )This is my HTML: (这是我的HTML：) <span>File</span> ... 该怎么做才能解决此问题？) ask by Sergio del Amo translate from so...

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

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464 views

1 answer

git - 撤消尚未推送的Git合并(Undo a Git merge that hasn't been pushed yet)

Within my master branch, I did a git merge some-other-branch locally, but never pushed the changes to origin master. (在我的 ... (我如何回到这一点？) ask by Matt Huggins translate from so...

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

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782 views

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sql-server - 聚簇索引和非聚簇索引实际上是什么意思？(What do Clustered and Non clustered index actually mean?)

I have a limited exposure to DB and have only used DB as an application programmer. (我对DB的接触有限，只使用DB作为应用程序程序员 )I want to know ... ? (有人可以用简单的英语解释吗？) ask by P.K translate from so...

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

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449 views

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git - 如何通过HTTP代理从Git存储库中提取？(How do I pull from a Git repository through an HTTP proxy?)

Note: while the use-case described is about using submodules within a project, the same applies to a normal git clone of a ... 例如rails ） ) ask by James A. Rosen translate from so...

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

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393 views

1 answer

javascript - 自关闭脚本元素为何不起作用？(Why don't self-closing script elements work?)

What is the reason browsers do not correctly recognize: (浏览器无法正确识别的原因是什么：) <script src="foobar.js" /> <!-- self- ... 少对所有IE（6-8 beta 2）都是正确的 ) ask by dimarzionist translate from so...

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

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234 views

1 answer

python - 删除，删除和弹出列表之间的区别(Difference between del, remove and pop on lists)

>>> a=[1,2,3] >>> a.remove(2) >>> a [1, 3] >>> a=[1,2,3] >>> del a[1] >>> a [1, 3] >>> a= [1,2,3] >> ... a list? (以上三种从列表中删除元素的方法之间有什么区别吗？) ask by sachin irukula translate from so...

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

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216 views

1 answer

php - 单击按钮如何调用PHP函数(How to call a PHP function on the click of a button)

I have created a page called functioncalling.php that contains two buttons, Submit and Insert . (我创建了一个名为functioncalling.php的页面，其中 ... ? (我到底哪里出问题了？) ask by Razor translate from so...

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

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340 views

1 answer

php - 在控制器构造函数与表单请求中进行授权(Authorizing in controller constructor vs form request)

什么时候应该在控制器构造授权使用authorizeResource 喜欢这里时，我应该使用中授权表单请求喜欢这里？ ask by Ali translate from so...

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

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245 views

1 answer

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

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311 views

1 answer

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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182 views

1 answer

python - 如何在Python中反转列表？(How can I reverse a list in Python?)

How can I do the following in Python? (如何在Python中执行以下操作？) array = [0, 10, 20, 40] for (i = array.length() - 1; i >= 0; ... . (我需要一个数组的元素，但是要从头到尾 ) ask by Leo.peis translate from so...

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

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164 views

1 answer

java - 使用reduce合并功能(Combine Function using reduce)

I am trying to combine the Function using the reduce function using the code below : (我正在尝试通过以下代码使用reduce函数来组合函数：) ... wrong here? (我在这里做错了什么？) ask by vaydesalme translate from so...

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

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465 views

1 answer

python - 如何卸载（重新加载）模块？(How do I unload (reload) a module?)

I have a long-running Python server and would like to be able to upgrade a service without restarting the server. (我有一 ... myfoo = foo.Foo() ask by Mark Harrison translate from so...

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

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