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当每个主机监听同一个端口时,路由器如何知道谁要发送新消息?

I am a junior software developer with basic background in networking but i've had a specific question in my head for a long time. I am currently designing a P2P chat app based on Java. It works on

在单击窗体标签上移动,但当用户单击输入字段时,标签不

Basically, I am creating a form where the user clicks into a field and the label repositions to the top of the field. I can get the label to move up when a user clicks into the field but when a user

如何使用Bootstrap创建表中的行的模态

I am creating a table in an html file. The table is populated with data from a json file using ajax call. I am using datatable in bootstrap for loading data from json file. https://datatables.net/

移动基站2集阵列

I have an object with an element which is a list and the MutableDocument has a .setArray method but this is expecting an instance of com.couchbase.lite.Array. How do I go about this to set my list

URL链接到页面位置和OWL转盘滑块位置

I have several links to send out to clients that reference # positions on my html site (http://www.sound.co.uk). I'm using javascript to convert some client-friendlier urls to specific ID tags on the

Python中的PROVIS等价物

Good morning SO! I regularly use profvis in R to help optimize my code; however, I am working on a project in Python that takes a while for the code to run. I have been searching Google and SO and

是否可以在C语言中动态地启用和禁用CORS?

I have a api method, where it will give some result based on that result I have to conclude whether i have to send the response to the request or not. For that i need to enable CORS at runtime in c#.

对象数组对象列表

Two comma separated item added in array list and I would like to group them to count the total. $list_distinct = [System.Collections.ArrayList]@() $list_distinct.Add("Site A,Item A") $list_distinct.

当我在Java中使用@ jSONPROPREYTIORE时,2次显示属性

I am developping Rest API using Spring Boot, I want to have a response such:Desire result but when I run my API this is the result: Result I search and I found that by using the annotation @

超预算购买预算1500美元

We need to buy notebook like ZenBook UX331UN But, I am read many forums and noticed what that or like that notebook all haven a similar problem like COIL WHINE. So, if somebody have notebook like

瓶状棉花糖定制字段

I use flask-marshmallow and mongoengine. Also flask-restplus for my API server. Here is my api.py class BoardSchema(ma.Schema): class Meta: fields = ('no', 'title', 'body', 'tags', '

R中栅格的条件状态图

Im trying to calculate Land surface temperature estimating with Landsat 8 images, but i stucked in one place and i cant move on. I m following split window algorithm. I calculated NDVI but and I have

如果表值等于预期值,如果没有执行另一个动作,则要做一个动作。

I am fairly new to Selenium and am self teaching, I have used a little JAVA years ago I want to add a statement around value1 to perform an action if value is as expected and perform a different

在VTIGEG7中,VTIGRESCRIM/NETX.PHP的Edj.js文件的位置是什么?模块=引线

I am new in Vtiger. I want to Set Designation to Lead Source (Dropdown list) .selected Value. But i can not find edit.js file in this path layout>v7>modules>leads>resources>??? here only Details.js

我的回应JSON数据返回承诺[重复]

I'm using javascript and when I request data return promise I tried await and then but it did not work. What should I do ? _getMatch = () => { GetMatchesByAccountID(this.state.user.accountId,

在Xamarin使用JITSI

I am trying to use Jitsi Meet in my Xamarin app. I tried building the android sdk, got the aar and used it in a binding project. It doesn't work for now, the React Native dependencies are not helping.

单元测试中H2的现有索引

I have a service that runs on a MySQL database. The service is written in Java and uses Spring & JPA/Hibernate. We are using an H2 database for the unit tests. The problem is when we run our

客户端模式下的SCAPLE作业是投掷错误

I am trying to run a Spark job in Server. It is not throwing error when I am running any normal println operation. I am unable to understand the error. I am trying to deploy the code in yarn client

ToFTFTPhaneBean只在SpRunBooTest中工作,但在其他类中不工作

public class ABC { @Autowired @Qualifier("toSftpChannel") public MessageChannel toSftpChannel; public void handleRequest(String id) { RestTemplate restTemplate = new RestTemplate();

如何在XAMARIN窗体中执行可点击和可缩放的网格(10000×10000)

I've been looking for a solution to my problem for weeks, and can't find out anything close to what I want. I need a big grid something at least 10000x10000 and even more if I can. The objective is to

如何编写Python TKTETER文本控件

I have made a text widget in my gui but cannot figure out how to write to it on certain specified lines. Is it possible to make it always have some words in one place when the program is started and

Kalas神经网络中的输入节点

I am trying to create an NN based on the iris dataset. I have an input of four dimensions. X = dataset[:,0:4].astype(float). Then, I create a neural network with four nodes. model = Sequential()

弹性搜索在多分类的情况下反应迟缓吗?[不是脚本排序]

My use case is to sort ES response based on 2 fields, 1st followed by another [In case 1st value is same]. This is unlike Script Sort where i use value of two fields within the query. Wanted to ask

颌骨不读取UL和LI元素作为列表

NVDA reads correctly. JAWS read only Link 1, Link 2 (content is Link 1, Link 2), but do not read that is is a list list-style-type: none; html: <ul role="list" class="content-links"> &

如何将控制器和动作名称传递到按钮单击的部分视图

i'm creating an application using mvc5 entity framework. I want to pass controller and action name on button click. i create bootstrap model for delete record. bootstrap model created as partial view

将列表从类传递到活动

I'm new to android development, so excuse me, if me question seems to trivial. I declare a List object in a method of a java class, which gets filled with data inside this method. Now I want to pass

检查视图是否在ReCielVIEW单元格中可见

I have a recyclerview with a complex cell UI. I'm trying to check if one of the elements from the cell is visible. As soon as the element is visible, I've to highlight the same. I've tried using Rect

使用PyTest1运行单个测试方法失败(未找到)

I am trying to run a specific test method with pytest on Python 3.6 with the following command: pytest sanity_test.py::test_check (as mentioned in pytest docs) and it fails with the following

R中区间变量的建模

Good morning, my name is Thiago and I need help in evaluating some data model: I want to model the basic density of Eucalyptus wood according to variables such as: Species (3 species), Age, Soil Type

iOS设备的共享链接代码

Share link to display apps is working fine in Android device with following code. Need to implement the same in IOS device. Can anyone help? var data = { title: 'Web Fundamentals', text: '

谷歌日历库与Android系统中的FCM和其他谷歌库冲突(CREP APP)

I am creating a business app in android and I want to implement google calendar in the android app I have implemented Google calendar successfully and I have also implemented FCM in my app when I am

为Android绘制自定义形状[复制]

I am trying with no luck to create a shape in xml as in the photo below

我遵循了白羊座蓝图的文件,用于注射卡拉夫捆,但仍然无法注入它。

i followed the documentation of aries blue print for injecting the karaf bundles, but still am unable to inject it. this is the link i am following for it http://aries.apache.org/modules/

在Azure上使用DoCKER图像部署Python Web应用程序

I am trying to follow this tutorial DEPLOY PYTHON WEB APP IN WEB APP FOR CONTAINERS I have cloned the project, tested it manually and it worked fine. The tutorial recommended to push the docker image

I have 3 local saved html files in 3 different languages in lproj folders in my xcode project. In every Localize.strings file there are keys for every html file name: 1)"history_file" = "history_en";

如何使用数据库和PHP显示服务下的相关活动

<?php include("connect.php")?> <?php $activityid = "select activity.activity_name,activity.activity_id from activity join

原始组中没有匹配项的列表的列表

I have a set of tuples in a form of a list: [(1, 2), (3, 4), (5, 6), (7, 8)] Not necessary in such an order, it can be as well: [(1, 4), (2, 6), (3, 5), (7, 8)] These lists have two properties:

角度6如何扩展默认配置(环境)

I have multiple Angular configurations. To extend the default configuration, I use lodash merge: import { merge } from 'lodash' import { defaults } from './defaults' export const configuration =

如何单击一个按钮来创建一个cookie,每个cookie的名称和唯一值(基于变量)每次点击它?

I am trying to create a button that creates a new cookie with an increased numeric value as it's name and a different value (which comes from a variable), each time it is clicked. But, I can't get it

从非正态分布向量中确定离群点

I would like to be able to determine outliers from a list where data don't follow a normal distribution. list = [0, 1, 2, 3, 2, 1, , 2, 50, 100, 101, 102, 103, 101, 100, 150] outlier = [50,

朱丽亚中变量的作用域

When I ran the Julia code below, there was an error: "UndefVarError: globalOptiValue not defined". I thought that the globalValue is a global variable, but it is not. Thus, if I add the command "

Azure WebJob内部的寄存器处理器不工作

I'm trying to take the load off my main server. For that I created a micro service to handle my printing task that was consuming a lot and was trying to integrate both by using Azure Event Hubs. The

我怎么能CSS边界线

How can I estalish height property for the border-right (of the left section with social buttons) ? I created this modal window using grid. Here is snippet of my html code: <form class="form"&

数据原子中的新服务器连接,即使我有一个

I am trying to run sql with python in atom. When i run a querry, it runs successfully but it asks for a server connection every time, even if i have one. The querry runs, result is showed but a dialog

如何在MQTT后台处理APP时通知什么是首选方式?

i am developing one application involved push notification concept using MQTT broker, I can able to get notifications only when my app is in foreground. Also somehow i have managed to get

在SQL中将YYYY MM DD转换为YYYY

i have date column in table (documentyear). It has format yyyy-mm-dd . For example 2017-11-17. How can i get only year? i.e. convert from 2017-11-17 to 2017

詹金斯在Kubernetes Cluster上的安装

I am trying to install Jenkins in my kubernetes cluster. When I am exploring I found that in two ways. The first way that I understood is that, To install Jenkins master and slave. Here I found

删除同一查询上两个表的别名(PASGRESS 9.5)

I'm not sure what is wrong here: DELETE t1 FROM modified_client_config AS t1, modified_client_config AS t2 WHERE t1.Date < t2.Date AND t1.Client = t2.Client AND t1.Server = t2.Server; I search

触发器通过类为控件输入字段行为

I raised a query on Friday (here is the query) which works perfectly as per David Zemens instructions and BrakNicku guidance. Problem I have is that: one of the events I want to use is Enter.

RATEYO在Chrome中工作,而不是Firefox

http://rateyo.fundoocode.ninja/ Only in firefox (in chrome is ok) I change: <div id="rateYo" class="pull-left jq-ry-container" style="width: 160px;"><div class="jq-ry-group-wrapper"><

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