Recent questions in Technique[技术]

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480 views

1 answer

html - 使用CSS按比例调整图像大小？ [重复](Resize image proportionally with CSS? [duplicate])

This question already has an answer here: (这个问题在这里已有答案：) How do I auto-resize an image to fit a 'div' container? ... 方式，但只是想看看CSS是否可行 ) ask by codingbear translate from so...

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

0 votes

470 views

1 answer

linux - 如何在Unix控制台或Mac终端上运行shell脚本？(How to run a shell script on a Unix console or Mac terminal?)

I know it, forget it and relearn it again. (我知道了，忘了它并重新学习它。)Time to write it down. (是时候把它写下来了。) ask by P-A translate from so...

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

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386 views

1 answer

android - 退出应用程序会感到皱眉吗？(Is quitting an application frowned upon?)

Moving on in my attempt to learn Android, I just read the following : (继续尝试学习Android，我读了以下内容：) Question: Does the user ... 办法真正)退出该应用程序吗？) ask by community wiki translate from so...

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

0 votes

281 views

1 answer

node.js - 节点JS Express安全路由(Node JS Express secure route)

I want to have some kind of auth to make protected routes. (我想使用某种身份验证来创建受保护的路由 ) For example, the GET /forecastweather ... 记名令牌保护路由的最佳方法是什么 ) ask by Helper translate from so...

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

0 votes

392 views

1 answer

c++ - 从文件.txt读取数据(Read data from file .txt)

I have a c++ code here. (我在这里有一个C ++代码 )This code is to calculate data inside some files. (该代码用于计算某些文件中的数据 ... still new in programming. (我仍然是编程新手 ) ask by azrin translate from so...

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

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319 views

1 answer

mysql - 如何在SQL数据库表中选择第n行？(How to select the nth row in a SQL database table?)

I'm interested in learning some (ideally) database agnostic ways of selecting the n th row from a database table. (我有兴趣学习一些（ ... 可以引用的任何链接吗？) ask by Charles Roper translate from so...

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

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409 views

1 answer

linq - LINQ相当于IEnumerable的foreach <T>(LINQ equivalent of foreach for IEnumerable<T>)

I'd like to do the equivalent of the following in LINQ, but I can't figure out how: (我想在LINQ中执行以下操作，但是我不知道如何操作：) ... is the real syntax? (真正的语法是什么？) ask by tags2k translate from so...

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

0 votes

345 views

1 answer

java - 如何检查数组是否为空/空？(How can I check whether an array is null / empty?)

I have an int array which has no elements and I'm trying to check whether it's empty. (我有一个没有元素的int数组，我正在 ... System.out.println(k.length); } ask by Ankit Sachan translate from so...

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

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313 views

1 answer

javascript - 如何检查变量是否是JavaScript中的数组？ [重复](How do you check if a variable is an array in JavaScript? [duplicate])

This question already has an answer here: (这个问题在这里已有答案：) How to check if an object is an array? (如何检查对象是否是数组？) ... can be done? (这是最好的办法吗？) ask by Andy McCluggage translate from so...

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

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378 views

1 answer

c - 如何在C中将字符串转换为整数？(How to convert a string to integer in C?)

I am trying to find out if there is an alternative way of converting string to integer in C. (我正在尝试找出是否有在C中将字符串转换为整数的替代 ... (那么，有没有更好的方法或另一种方法？) ask by user618677 translate from so...

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

0 votes

399 views

1 answer

http - 如何在HTTP POST请求中发送参数？(How are parameters sent in an HTTP POST request?)

In an HTTP GET request, parameters are sent as a query string : (在HTTP GET请求中，参数作为查询字符串发送：) http://example.com/page ... look like? (它是什么样子的？) ask by Camilo Martin translate from so...

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

0 votes

456 views

1 answer

vuejs2 - 在@ vue / cli 4.0.5 app 2“ app” div中做什么？(What for in @vue/cli 4.0.5 app 2 “app” divs?)

In my @vue/cli 4.0.5 app in /public/index.html file I see code with div id= app (在我的/public/index.html文件的@ vue / cli ... ，我看到它在我的页面中呈现了...) ask by Petro Gromovo translate from so...

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

0 votes

460 views

1 answer

html - 如何在Notepad ++中自动设置格式/缩进XML / HTML(How To Auto-Format / Indent XML/HTML in Notepad++)

Is there a way to re-indent a block of code? (有没有办法重新缩进一段代码？)I'm looking for something similar to Ctrl + Shift + F ... 了-它不能工作，因为我正在使用XML，HTML和CSS ) ask by SBoss translate from so...

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

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416 views

1 answer

linux - 为什么“ cd”在shell脚本中不起作用？(Why doesn't “cd” work in a shell script?)

I'm trying to write a small script to change the current directory to my project directory: (我正在尝试编写一个小脚本以将当前目录更改为 ... doing wrong? (我究竟做错了什么？) ask by ashokgelal translate from so...

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

0 votes

461 views

1 answer

macos - 如何从Git存储库中删除.DS_Store文件？(How can I Remove .DS_Store files from a Git repository?)

如何从Git存储库中删除那些烦人的Mac OS X .DS_Store文件？ ask by John Topley translate from so...

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

0 votes

600 views

1 answer

rust - 没有为`std :: result :: Result实现特质`std :: future :: Future` <reqwest::Response, reqwest::Error> `(The trait `std::future::Future` is not implemented for `std::result::Result<reqwest::Response, reqwest::Error>`)

I'm trying to run basic reqwest example : (我正在尝试运行基本的reqwest 示例：) extern crate reqwest; extern crate tokio; #[tokio::main ... ? (有人知道这是怎么回事吗？) ask by semanser translate from so...

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

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482 views

1 answer

c++ - c + +选择排序在特定情况下不起作用(c++ Selection sort isn't working in specific cases)

I've created a program that uses selection sort to sort integers in an array. (我创建了一个使用选择排序对数组中的整数进行排序的程序 )In ... } return 0; } ''' (''') ask by macb2001 translate from so...

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

0 votes

465 views

1 answer

excel - 在excel或VBA上不满足条件时，如何创建循环并移至下面的单元格？(How to create a loop and move to the cell below when a condition is not met on excel or VBA?)

I have a list of keywords and a list of questions on excel. (我有一个关键字列表和一个关于Excel的问题列表 )I need to see IF every single ... help! (非常感谢大家，将为您提供帮助！) ask by mrpls translate from so...

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

0 votes

329 views

1 answer

arrays - SQLAlchemy（Postgres）ARRAY与JSON的整数列表(SQLAlchemy (Postgres) ARRAY vs JSON for list of integers)

I want to store a list of integers in a Column with SQLAlchemy (using Postgres). (我想用SQLAlchemy（使用Postgres）在列中存储整数列表 ) Am I ... 如果我希望整数唯一，该怎么办？) ask by thekthuser translate from so...

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

0 votes

614 views

1 answer

python - 如何在Python中注释掉一段代码[重复](How to comment out a block of code in Python [duplicate])

This question already has an answer here: (这个问题在这里已有答案：) Why doesn't Python have multiline comments? (为什么Python没有多行注释？)17 ... 读完所有评论后，答案似乎是不 ) ask by gbarry translate from so...

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

0 votes

162 views

1 answer

r - 分组功能（tapply，by，aggregate）和* apply系列(Grouping functions (tapply, by, aggregate) and the *apply family)

Whenever I want to do something "map"py in R, I usually try to use a function in the apply family. (每当我想在R中做 map ... 或重塑-将plyr或reshape取代所有这些完全？) ask by grautur translate from so...

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

0 votes

521 views

1 answer

laravel - 我们可以通过route（）方法从刀片传递请求吗？(Can we pass post request via route() method from blade?)

Rephrasing Question : I know how it works via form, i've been looking that if there is any way we can send " ... , $parameters, $absolute); } } ask by Vipertecpro translate from so...

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

0 votes

425 views

1 answer

javascript - 按值对对象属性进行排序(Sorting object property by values)

If I have a JavaScript object such as: (如果我有一个JavaScript对象，例如：) var list = { "you": 100, "me": 75, "foo": 116, ... 75, "you": 100, "foo": 116 }; ask by Steerpike translate from so...

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

0 votes

326 views

1 answer

java - 如何使用IntelliJ快捷方式将Java中的Runnable更改为lambda表达式(How to change Runnable to lambda expression in Java with IntelliJ shortcut)

I have the following anonymous Runnable implementation. (我有以下匿名Runnable实现 ) Runnable cronTask = new Runnable() { @Override ... 快捷方式进行转换？) ask by Technotronic translate from so...

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

0 votes

410 views

1 answer

rust - 在Rust中，如何将具有生命周期的对象推入向量？(In Rust, how to push an object with a lifetime into a vector?)

I've got code somewhat like the following, which attempts to read from a websocket, parse the JSON result into a struct, and ... 有办法安全地做到这一点？) ask by LogicChains translate from so...

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

0 votes

449 views

1 answer

php - 整数的无效输入语法：“”(Invalid input syntax for integer: “”)

I have a problem, to build INSERT PHP file with HTML form code. (我有一个问题，用HTML表单代码构建INSERT PHP文件 )When I ... 10.10 (我使用PostgreSQL 10.10) ask by Henrijs Soltums translate from so...

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

0 votes

224 views

1 answer

android - Android Studio：将jar添加为库？(Android Studio: Add jar as library?)

I'm trying to use the new Android Studio but I can't seem to get it working correctly. (我正在尝试使用新的Android Studio，但我似乎无法让 ... wrong? (有谁知道我做错了什么？) ask by Ozzie translate from so...

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

0 votes

510 views

1 answer

android - 如何在TextView中将文本水平和垂直居中？(How do I center text horizontally and vertically in a TextView?)

如何在TextView水平和垂直居中放置文本，以使其准确显示在Android TextView的中间？ ask by pupeno translate from so...

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

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