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最近问答

当前特殊字符和文本格式

I am currently working on a Computer Based Test Software application (C#/WPF) in my project there are test questions specially formatted and some with special characters, e.g Mathematics subscript and

Raspberry pi在USB驱动器中读取文本文件

I am writing a python program to read a text file in USB connected to raspberry pi my query is whether it is possible to read text file inside the USB drive connected to raspberry pi or not if yes

CARAS中语义分割的损失函数是否正常?

I am wonder if categorical_crossentropy for semantic segmentation is good?Here's what I do:#test mode K.set_learning_phase(0)#m is a model load weights from what Itrained m.load_weights(load)

PHP/LARAVELVER存储到数据库中(\Grave::ValueReIsIe())

I have an array, which looks like this:array:3 [▼"field" => array:2 [▼0 => "fromName"1 => "from"]"operator" => array:2 [▼0 => "="1 => "="]"value"

使用文件位置读取和提取固定列文件中的字符串中的长INT数据?

I'm trying to extract the long int data only from /proc/meminfo. A sample of the file is below. I can do this, but a long known mantra in Linux is, do one thing, and do it well. It irks me that I'm

在Django密码重置中添加更多字段是可行的吗?

Can i add more fields to django password reset forms?like username fields , and if username and email is valid, the password reset link will be sent to emailplease help mei want to password reset

Python遵循Windows快捷方式

I have a Python program that lists all folders in a directory. It then proceeds to process them in an appropriate way. However, I need this program to treat shortcuts to folders the same way it would

如何使用StimeTime2使用JavaScript用第二个延迟来更改字母?

I'm trying to make a text display in DOM from a->b->c->d->e with a 1-second delay between each alphabet using setTimeout. However, the result came out as letter changing from 'a' an immediately to 'e'

REST:同一个重新定位的多个案例(同一个API入口点?)

For example, i have two scenario for creating a user :Created by administrator, without password. The user will have to choose it on activation page.Created by the user himself, with password. The

当视图控制器消失时会调用DeNIT吗?

I created two view controllers likeNavigation controller -> View Controller -> Details View Controller1 23The (2) View Controller has a

如何使用SytheleAF包含来自SelpGub中的JAR的HTML片段

I would like to know how can I load a Thymeleaf template on page from a JAR file.Now i have a common-web jar, this have header.html.But in another web project that use spring boot + thymeleaf, i

如何从PHP中提取JSON中的简单数据?[复制品]

I have a simple JSON{"message":"otp verified","type":"success"}How do i decode this in PHP

飞溅飞溅响应。

Im trying to use crawlera alongside splash local instance, this is my lua scriptfunction main(splash)function use_crawlera(splash)local user = splash.args.crawlera_userlocal host = '

在ITEXT 7行之间添加画布

Is it possible to add canvas along with the addParagraph to the document? i have long text(1000 page).I need to add canvas between text in certain places(graphics, shapes, etc.).For example, if

如何在Java中连接换行符?

I've got a very strange question. Say I am implementing an object that has a toString() method that returns a single string formatted in a square, as such:010203040506070809Now, clearly the

Chris Moody的随机高亮条?警报?

Can anyone tell me how precisely to set up alerts on tradingview (i do know how to set up alerts..) specific to the "Strict Buy" criteria in the CM_Stochastic Highlight Bars indicator??? I have done a

预测碰撞检测

I want to implement collision detection for a manufactoring machine. The machine has several rotative und linear axes. parts that can collide within the machine can be approximated with bounding

如何在访问当前文件名的VIM中创建命令?

I would like to create an individual vim command that does the following:save the current filerun the current file with pythonCurrently I have to do it like this::w:! python3 {filename}

在指定条件下将球分配到箱子

There are $n$ different balls numbered 1, 2, … , $n$. Let $S$ denote the set of those balls. There are $k$ boxes to which balls can be allocated. The full set $S$ is available to each of the $k$ boxes.

关于索引错误和除法的问题

I have two lists and I wanted to create generate the quotients using a for loop. Specifically, I would want to have .5 and .25 and .125 and in that order. Of course, I could just take these values and

棉花糖在转储期间添加计算列(反序列化)

Hello everyone : I have struggle with this for some time now.I have a Model as under:class Job(db.Model):__tablename__ = "job"id = db.Column(db.Integer, primary_key=True)title = db.

Laravel:表中的值与另一表中的值连接

Iam doing a project on laravel.I have 2 tablestable 1 - countries with unique idsenter image description heretable -2 - bloglistsenter image description hereMy view shows the bloglist data

带过滤器筛选的同位素过滤器负荷页面

I am quite new to Isotope and jQuery, and have trouble filtering my results on page load. The Isotope works, but when I tried to apply a filter .155282971747-digital-marketing" (instead of *) per

PHP会话变量只在一页上工作

Apologies if this is a duplicate question.I built a basic login system using PHP. I am able to login and logout on one page only (index.php). The session variable somehow gets lost somewhere when I

可过滤下拉获取ID

I have to get the selected option's id.This way returns always the first id, it returns "1" :function myFunction() {var skills = document.getElementById('toto');var skillId = skills.

在C中的一维数组中每次存储一对数字

I'm a beginner in C. I am having trouble with this array function. When I call the function, it will ask for the input of a pair of numbers (key, value) each time, and store it in a one-dimensional

在Django雅典娜登录页面中有没有改变密码字段标签的方法?

I'm using built in login view in django 2.1Is there any way to change the password field lable?

从Java运行时,让撒克逊产生新的结果文档

I am trying to run Saxon HE from java, using code that can be found in Saxon resources. I have tried changing it so that it doesn't create an aditional file from the java code, but instead having the

GPS设备的时间格式

Besides Unix and GPS are there any other timestamp formats that GPS devices use?I am trying to decode the timestamp sent by one of my GPS devices but I cannot understand what sort of data it is.It

包含包含PHP脚本的Ubuntu-CRON作业未完成

I'm inserting a record into my DB each time the cron job runs my script and that works. When the PHP script reaches an include file, the functionality in the included file doesn't finish. When I run

投票问答

为什么处理排序的数组比未排序的数组快?

Here is a piece of C++ code that seems very peculiar. For some strange reason, sorting the data miraculously makes the code almost six times faster.#include <algorithm>#include <ctime>#

如何撤消Git中的最近提交?

I accidentally committed the wrong files to Git, but I haven't pushed the commit to the server yet.How can I undo those commits from the local repository?

如何在本地和远程删除Git分支?

I want to delete a branch both locally and on my remote project fork on GitHub.Failed Attempts to Delete Remote Branch$ git branch -d remotes/origin/bugfixerror: branch 'remotes/origin/bugfix'

两者之间有什么区别?

Moderator Note: Given that this question has already had sixty-seven answers posted to it (some of them deleted), consider whether or not you are contributing anything new before posting another one.

正确的JSON内容类型是什么?

I've been messing around with JSON for some time, just pushing it out as text and it hasn't hurt anybody (that I know of), but I'd like to start doing things properly.I have seen so many purported "

什么是

What is the use of the yield keyword in Python? What does it do?For example, I'm trying to understand this code1:def _get_child_candidates(self, distance, min_dist, max_dist):if self.

什么是

After reading Hidden Features and Dark Corners of C++/STL on comp.lang.c++.moderated, I was completely surprised that the following snippet compiled and worked in both Visual Studio 2008 and G++ 4.4.

如何撤消

I mistakenly added files to git using the command:git add myfile.txtI have not yet run git commit. Is there a way to undo this, so these files won't be included in the commit?There are 48

如何重定向到另一个网页?

How can I redirect the user from one page to another using jQuery or pure JavaScript?

如何修改现有的未推送提交?

I wrote the wrong thing in a commit message. Alternatively, I've forgotten to include some files.How can I change the commit message/files? The commit has not been pushed yet.

JavaScript关闭是如何工作的?

How would you explain JavaScript closures to someone with a knowledge of the concepts they consist of (for example functions, variables and the like), but does not understand closures themselves?I

堆栈和堆在什么地方?

Programming language books explain that value types are created on the stack, and reference types are created on the heap, without explaining what these two things are. I haven't read a clear

如何检查字符串是否包含JavaScript中的子字符串?

Usually I would expect a String.contains() method, but there doesn't seem to be one. What is a reasonable way to check for this?

如何重命名本地Git分支?

I don't want to rename a remote branch, as described in Rename master branch for both local and remote Git repositories.How can I rename a local branch which hasn't been pushed to a remote branch?

如何检查元素是否隐藏在jQuery中?

It is possible to toggle the visibility of an element, using the functions .hide(), .show() or .toggle().How would you test if an element is visible or hidden?

什么?

Recently, I ran some of my JavaScript code through Crockford's JSLint, and it gave the following error:Problem at line 1 character 1: Missing "use strict" statement.Doing some searching, I

如何从JavaScript中删除数组中的特定元素?

I have an array of Numbers, and I'm using the .push() method to add elements to it.Is there a simple way to remove a specific element from an array? The equivalent of something like array.remove(

为什么HTML认为“ChukRurRIS”是一种颜色?

How come certain random strings produce colors when entered as background colors in HTML? For example:<body bgcolor="chucknorris"> test </body>produces a document with a

如何将Git存储库还原为以前的提交

How do I revert from my current state to a snapshot made on a certain commit?If I do git log, then I get the following output:$ git logcommit a867b4af366350be2e7c21b8de9cc6504678a61b`Author: Me &

JSON可以使用注释吗?

Can I use comments inside a JSON file? If so, how?

var函数名=函数(){{} vs函数函数名(){}

I've recently started maintaining someone else's JavaScript code. I'm fixing bugs, adding features, and also trying to tidy up the code and make it more consistent.The previous developer uses two

为什么减去这两次(在1927)给出一个奇怪的结果?

If I run the following program, which parses two date strings referencing times 1 second apart and compares them:public static void main(String[] args) throws ParseException {SimpleDateFormat

如何从当前的Git工作树中删除本地(未跟踪)文件?

How do you delete untracked local files from your current working tree?

如何检查远程Git分支?

Somebody pushed a branch called test with git push origin test to a shared repository. I can see the branch with git branch -r.Now I'm trying to check out the remote test branch.I've tried:git

我如何强制

How do I force an overwrite of local files on a git pull?The scenario is following:A team member is modifying the templates for a website we are working onThey are adding some images to the

C和C中字符串和字符串的区别是什么?

Example (note the case):string s = "Hello world!";String s = "Hello world!";What are the guidelines for the use of each? And what are the differences?

是爪哇

I always thought Java was pass-by-reference.However, I've seen a couple of blog posts (for example, this blog) that claim that it isn't.I don't think I understand the distinction they're making.

在JavaScript比较中,应该等于操作符(==V===)吗?

I'm using JSLint to go through JavaScript, and it's returning many suggestions to replace == (two equals signs) with === (three equals signs) when doing things like comparing idSele_UNVEHtype.value.

两者之间有什么区别?

What is the difference between Android units of measure?pxdipdpsp

如何从JavaScript对象中移除属性?

Say I create an object as follows:var myObject = {"ircEvent": "PRIVMSG","method": "newURI","regex": "^http://.*"};What is the best way to remove the property regex to end up with