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带有固定标题的HTML选择标签?

I'm looking for a solution to make a scrollable selectbox with heading like in the picture. If I user a table, I can't choose any of the lines. I want the user to mark one option, so he can delte it,

特定于Java的循环数组2D

I have this array : int[][] multi = new int[][]{ { 3, 4, 2}, { 2, 2, 5 }, { 1, 2 } }; I would like to print the produce of each cells. It's

Suffice应用程序的缓存问题

We are developing an app which will display a button on product details page to perform some actions. We are using product.metaifields for displaying the same based on a condition. So basically the

PySpple找不到数据源:COM.DavaRKE.SPARK.XML

I'm working on CentOS 7 with Spark 2.3.0 I linked PySpark with jupyter but I get an error when I try to read an xml file df=pyspark.SQLContext(sc).read.format('com.databricks.spark.xml').options(

如何实现UI功能,如滚动选项卡,水平分页和页眉最小化

How to achieve UI like below. like scrolling tab, horizontal paging and header minimise.

枚举类中方法的EcLeMMA覆盖

I'm using EclEmma plugin for Eclipse, and the coverage report shows 0% coverage for an Enum I've defined, public enum Call { INSTANCE; public int add(int a, int b) { return a+b; } public int

加载到根组件中的命名出口组件

I'm trying to implement sidenav with Auxiliary routes, but without a success. This is simplified example of my router: { path: 'admin', component: MainLayoutComponent,

自初始化

I have fast question about Topself. To initailize topsefl I use: -- public static TopshelfExitCode Run(Action configureCallback); HostFactory.Run(c => { c.Service&

[减速器]:将对象添加到对象数组似乎会导致属性重写

ItemListComponent This component renders a list of items, each of which is an object with a unique itemId property. The user can add an item to the cart by pressing the plus icon. <FlatList

当列名称不使用时,如何使用

I am trying to use whereIn() to find records who have 'prov' that can be found in this array; array:3 [▼ 0 => array:6 [▼ "id" => 1 "contest_id" => 1 "contest_zone_id" => 1 "province" =&

如何返回字段中所有值的列表

I have a document like: { "Id":"1", "Name":"product1", "Categories":["Cat1", "Cat2", "Cat3"] }, { "Id":"2", "Name":"product2", "Categories":["Cat3", "Cat2", "Cat6"] } Now I want

在哪里找到LyBunn的符号?所以在Uny3D中?

I've received a crash stack trace below. But no idea what each line is doing actually. Symbol of libmono.so should help, but it didn't come with Unity3D like libunity.so. 1 #00 pc 0003a360 /system/

为什么ToCalalTimes不将UTC时间转换为本地时间?

I have code in my razor view: @Model.DateUpdated.ToLocalTime().ToString("dd/MM/yyyy HH:mm:ss") In my model the property is as follows: public DateTime DateUpdated { get; set; } This is populated

用整数加法将表中的列转换成R中的合并行

I have this data table which shows incoming calls at a grocery shop. The call time is when the call came in, the activity_time is when the employee started using the software, activity_des is the

C语言的SQLite及其WHERE子句

I have the following code working fine, but how do I add a where clause in, tried numerous approaches but to no avail, getting syntax error can some please help? Been trying the following string:

Jasmine createSpyObj服务不注册呼叫

After reading what feels like every single post about Jasmine spies not registering calls, here's my code with that exact problem: describe( 'shared.FormAutocompleteComponent', () => { let

IE 11中未设置只读值

Hello this question may sound repeated, but I wasn't able to find the correct answer even after looking through a lot of posts. I have a "read only" field in my app that is set using the data entered

一维数组在检索中自动舍入值

The array pulls information from the spreadsheet and does a multiplication resulting in a number with 2 decimal points, when I do a sum or have the code loop and add the values in the array they

管理应用程序的SeuleExcExtEx()

I want to execute an admin process like Cheat Engine without having to write the password every time. I got it working using PowerShell but with C WinAPI it still asks for the password. PowerShell (

一旦输入值为变量,就不能取TyaTax和TyaTyy的余弦函数和正弦函数。

So, I have a matrix named "mat" which carries expressions with respect to theta_r and phi. In the next line, I substitute these out so they are with respect to theta_x and theta_y. Now, I want to

Python中的多进程共享对象

I have written a python program that uses multiprocessing to populate a dictionary with data, and I have other functions (API) within in the same class I have created to get and set the data. I am

不能使用变量将值分配给简单命名的元组

I've been playing around with namedtuples from collections in classes, and came across this simpler 'syntactic sugar' naming assignment, but when I assign foo to 009 and try to put it into the tuple

基于一个月数据拉动交易数据

I have a table called transactions and I'm looking for one specific transaction type for every person. Here are my tables: Account DateTime | Balance | PersonID 2018-01-02 |

I recently found a SO question / answer regarding not being able to edit a file that is TFS write protected. The answer involved right clicking the Solution and selecting "Go Online". After doing this,

路径轨中传递参数

I have this in one modal and I need to put some data in my user_link_path : <div id="modal-myvalue"></div> //DATA <%= link_to "Delete link", user_link_path(NEED TO PUT THE DATA HERE),

对象文法的比较行为

I have searched but could not find logic behind following in JavaScript - When i type in console {} == null returns Uncaught SyntaxError: Unexpected token == But {} == {} returns false why ?

将两个页面从HTTPS重定向到HTTP

I have two pages I need to redirect from HTTPS to HTTP. I have working code for a single page but I am struggling to figure out how to get it working for two pages. It redirects request to /modules/

消息:身份验证失败!Twitter返回了一个错误。403禁止:请求被理解,但已被拒绝

I got this error while integrating Twitter sign up by using Code Igniter-HybridAuth.

LAMAVER需要XAMPP吗?

I am new to PHP and Laravel. I installed Laravel and Composer , created new project and it is working fine. Now when i tried to migrate a database using this command php artisan migrate i got errors,

多重循环视图给出空指针异常

I have been developing an app that allows users to chat with each other. The users can send either a text message or a voice recording as a message. When a message is received, the view that should be

当幻灯片幻灯片激活时运行

Hi I have been trying to implement the following: When a slide is changed, I want to fire typed.js so that the animation starts when viewing each slide. I haven't been able to achieve this so far

在单元中添加日期前的空间

What's the formula for adding a space before a date in a cell? Eg, [space]25/12/1999

将谷歌甘特图连接到MySQL数据库

I am attempting to use google`s gantt chart for a website, by passing values from a mysql database. However I am only seeing a blank page. The chart I wish to use is: gantt chart The current gantt

在HTML页面中创建应用程序服务器的客户端套接字

I have an app server and I want to use an HTML page to create a client socket to that app server send a request and receive the response. my app server is not a web server (no HTTP). for example, you

(BASH)当出现错误时,如何进行迭代

Below is a bash script which treats a csv file. #!/bin/bash IFS=";" while read -a line;do printf "xxxxxxxxxxx Adresse: " >> retour.txt printf ${line[0]} >> retour.txt

所有变量R的计算范围介绍

For someone new to R, what is the best way to view the range for a number of variables? I've run the summary command on the entire dataset, can I do range () on the entire dataset as well or do i need

支持Java 1.8和DEV模式调试的GWT版本?

I have a requirement to use highest possible GWT version which support Dev mode debugging as well as Java 1.8

如何在VS 2017 Vistx扩展C中启用/禁用命令扩展名

I'm developing an exension for Visual Stuidio 2017, using C# VSIX project. I need to create a variable number of command, base on a .ini file. I thought to create a max number of command (because in

遗留重定向与SyfFoY路由错误?

I would like to redirect (301) all the requests like "/cgi/.*" to a "parking" page of my symfony (3.4) application "/park". I've created a route like this : old_legacy: path: /cgi/{catchall}

Django位姿和未知列误差?

I am using django geolocation for showing map with position in my application built on Django2.0.6 + Python3.6 + Mysql. But when I open my form it shows following error- Exception Value: (1054, "

使用递归时不向树写入节点的函数

I am a student who is making a tree structure in cpp for a project. The program is supposed to get a string from an input and enter it into a tree. The tree is organized by each node having the

数据可视化与图标布局

I would like to change line's parameters of data visualizer (I'm not sure is the data visualizer module) like in the following image : data red line. I tried to change lineColor parameter of all

No.Script语句现在()

I have a sqlalchemy model: class User(Base): __tablename__ = 'test_user' id = Column(Integer, primary_key=True) timeout = Column(Integer) last_receive_time = Column(TIMESTAMP) I

我如何修复我的程序,它总是显示字体错误,不管我如何改变对象的类型?

I recently wrote a piece of code (an decryptor) to convert the result to a specific number (I took inspiration from Shamir's Secret Scheme, which uses Lagrange Polynomials as core). I previously wrote

可以在MSSQL查询中使用IF语句来使用对多个SQL版本的查询吗?

I am deploying a Stored procedure that check the backup age of every server I support. However, with a little of programming experience that I have, I know I can add or delete part of my code with an

将多个SARKML管道应用于单个数据文件

I trained several ml pipelines with SparkML and persisted them in HDFS. Now, I want to apply the pipelines to the same dataframe. I implemented a generic scoring class which reads in the pipelines

如果我不订阅,我必须退订吗?

Given the below code sample: import { Component, OnInit } from '@angular/core'; import { timer } from 'rxjs/observable/timer'; import { tap } from 'rxjs/operators'; @Component({ selector: 'foo' })

带谷歌地图的猫头鹰旋转木马

I want to include a google map with markers on the owl carousel (v2). The script I am using for the google map is working elsewhere on the page, but not when I include it in the carousel. So, the

C语言中的uWin和Stand(VB.NET)的等价物是什么?

i have codes like this in vb.net If UBound(aTicketEntry) < 17 and aTicketEntry = Split(sBarcodeValidation, "|") and i try to code them like this but i got error on both them aTicketEntry =

Excel单元格具有边框XLDAXONALUP颜色,但相同单元的范围没有。为什么?

I recently stumbled upon this strange behaviour, while trying to get styleinformation out of excel, especially the border color. using Microsoft.Office.Interop.Excel 15.0.0.0 and Excel 2010 I set

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