Paid help~Need an online exam system

The existing database needs an online examination system with permission classification, question-brushing examination, and messaging system. It can be native and frameworkable. It needs to support mobile version login and examination. Please discuss in detail Q30856417

꧁꫞꯭波꫞꧂ 2020-04-29 19:35:42 0  0  969

Does anyone have any recommendations for free third-party online customer service? It's also available for a fee and is not expensive.

Does anyone have any recommendations for free third-party online customer service? It’s also available for a fee. It’s not expensive. Please recommend me. Thank you.

康师傅 2019-08-14 22:51:52 0  6  1238

linux - Is there any code written in Python that can be released, automatically brought online, or is a system for preparation and management?

Is there any code written in Python that can be released, automatically put online, or is a system for preparation and management? I want to make a similar website, but I don’t have any ideas. Can you recommend a related project? Let me study first...

大家讲道理 2017-05-16 13:31:07 0  5  717

php - If you build an online examination system, how should you store indefinite multiple-choice questions?

Recently I am working on an online examination system. The test questions are very open. The multiple-choice questions not only have options, but also open options. For example, one question, ABCDE. Option E is do you have any other good ideas? _________ such options, and this The options are also i...

phpcn_u1582 2017-05-17 09:55:53 0  4  1093

How does the online book management system allow users to find and operate their own data tables based on usernames?

For example, in an online book management system, if users perform addition, deletion, modification, and search operations, how can the user generate a data table of his own for each addition, deletion, modification, and search operation after successfully registering? How can the user find the corr...

phpcn_u30422 2018-08-23 22:16:49 1  1  1544

Online question answering system

Mainly do single-choice and multiple-choice questions! I put the questions, options and correct answers into the same database, three questions! ! Can I design the option as a field and store it in json? Are the answers stored in another field? When the user answers a question, I return all the ques...

A峰 2020-08-26 23:19:45 0  2  1451

Build multiple nginx proxies and multiple tomcat7+redis cluster sessions to share.

1. There are currently 5 WEB servers, on which nginx is deployed as a proxy tomcat application. Since there are two business systems, but the customer system needs to use one, I want to use redis to synchronize and share sessions, and build a redis cluster to implement the application. Unified custo...

phpcn_u1582 2017-05-16 17:18:25 0  1  448

New to PHP, please tell me how to fill in these rules.

<?php$mailbody .= "Add a link to online customer service"."\r\n"; $mailbody .= "Add a picture here"."\r\n";?>

七月上、 2020-04-23 16:56:50 0  0  921

App payment, PHP background integration

I downloaded the 2.0 server SDK. After passing the parameters to the client, the client kept prompting that the system is busy. Please try again later. I don’t know where the problem is. Is it a problem with the background or the client?

黄舟 2017-05-18 10:48:08 0  1  361

windows-server - After logging into the remote desktop (windows desktop), how to run python programs in the Linux environment?

I wrote a small python program under my own system (windows), and the teacher asked me to run it under the Linux system. I logged into our group's development server and connected using Remote Desktop. But the remote desktop seems to be a Windows system. How can I run it in a Linux environment...

習慣沉默 2017-05-27 17:44:43 0  2  1216

javascript - How to avoid duplication of development and maintenance of multiple versions when providing enterprise services? How to design front-end and back-end PHP to improve scalability?

Using PHP to develop enterprise service systems requires providing different versions of the system for different customers. Most of the system requirements for each version are the same. How to avoid repeated development and maintain multiple versions? How to design front-end and back-end PHP to im...

黄舟 2017-05-16 13:15:24 0  1  432

mongoDb登录授权失败

我使用v3.0.2mongoDb.创建了用户，启用auth方式启动数据库。 在服务器上用客户端 用户名密码连接数据库可以连接成功。 打开防火墙端口后，用Mongo VUE客户端登录，可以连接成功，但是登录进去会提示认证失败，请...

我想大声告诉你 2017-04-25 09:02:44 0  2  778

在linux系统下搭建git服务器，在自己电脑克隆，一直显示输入密码？

在linux centos 6.5系统下搭建git服务器，也复制了公钥到authorzied_keys文件中，在自己电脑上克隆线上的文件， ，一直提示输入密码，各种密码都输入，也都不正确，不知道是哪配置错了，求高手帮我看下。是什么问...

PHP中文网 2017-05-02 09:22:40 0  8  784

Please update the source code online for reference

The situation is like this. I found a domain name authorization control system on the Internet and I am very interested in using it for research. But the code updated online cannot be debugged no matter how hard it is. I hope the master will write a case for reference. The general meaning is that wh...

phpcn_u63796 2017-11-22 00:04:26 1  0  1127

php - Looking for guidance on the solution to `Can't initialize character set XXXX`

I originally wrote a project using thinkphp5. In order to solve the emoji problem, the database character set used utf8mb4, which ran well on the server at that time. Recently due to some reasons it was necessary to transfer the entire system to a new server. But after importing the original databas...

PHP中文网 2017-06-13 09:21:30 0  1  746

javascript - When I use github client and click sync, Server certificate is not trusted pops up?

When I use the github client and click sync to connect to the remote server, Server certificate is not trusted always pops up? The certificate is not currently vaild.This might be due to the certificate having expired or your sys...

phpcn_u1582 2017-05-02 09:52:37 0  1  911

怎么使用Git像svn一样

我现在开发项目，之前是用svn现在想用git 在linux服务器上已经安装了git 在windows安装了客户端TortoiseGit工具 我想把线上代码clone到线下，一直是出现这错误 也是第一次用，很多功能都不熟悉，请高手指教下。

伊谢尔伦 2017-05-02 09:18:51 0  10  846

javascript - I want to learn full-stack web front-end development. Is there any institution you can recommend?

I want to learn full-stack web front-end development, but self-study is still inefficient. I want to find a training institution to learn systematically. Is there any institution you can recommend? Both online and offline institutions are available. Thanks!

PHPz 2017-05-31 10:38:06 0  6  1047

github - What git server does your company generally use?

What git server do companies generally use? I used svn for version control before, but now I want to switch to git. I want to deploy it on the company's server. The company's server uses the server2012 system. Can git be installed on server2012?

習慣沉默 2017-05-02 09:25:10 0  9  789