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1, New project Open vs2017 and create a new project named orm1       2, New database Open SqlServer database, create new database orm1, and create new table student.   3, New ADO.NET entity data model     Click new connection here to create a new database connection. In fact, the server name input. Represents the local server, and the defa ...

The previous article explained the implementation of MQTT protocol in JS by interacting with Unity3D, which is rather rough because it is not particularly proficient with JS.In this article, Unity3D is introduced to implement MQTT protocol communication, and the process is explained in detail.MQTT is an open source communication method of IBM ...

Note: This article is only used to discuss asp.net containerization. It is not recommended to use it in production environment (docker image is too large!!!)     Install docker Prepare a windwindows server 2016, and execute the following fame and fortune in PowerShell Install-Module DockerProvider -Force Install-Package Docker -ProviderName D ...

In the last article, we already know what multithreading is, so what can it really do?In particular, here is a declaration that a former delegate who did not see the previous blog can go to the previous post to view, because multi-threaded to often use Entrust. Source code 1. Asynchronous and synchronous *1. Synchronization (the understanding o ...

1. Preface What is Failure Art?The LOGO of the jitter we are familiar with is just one form of failure art.It has a magical feeling, looks like it flickers, vibrates and is eye-catching.Fault Art It simulates the sensation that a faulty picture signal causes an imaging error.This failure is due to the inability of the cyan and red color block ...

Preface In recent years, the scale of e-commerce transactions in China is growing, online orders are increasing, and returns and exchanges are becoming more and more common.Return and exchange link is an important part of online shopping process, and also an important aspect reflecting e-commerce platform and business service level.At the same ...

Although it's convenient to use the configuration in Abp, it's a troublesome thing to define the key in each configuration first, define it in the provider, and then use the key to get it from ISetting, The most important thing is to get changes. For example, to modify user configuration, it is more difficult to get a batch of key/value to retu ...

First of all, think about how to display the data in a List collection in the form of a drop-down box (select tag) without using the DropdownList control? Use drop-down box (pure select) to display classification data Steps: Processing backend: ① Define a public userID variable in the back-end code to save the userID obtained in the url public ...

The reason why an interface becomes an interface is that it is not implemented, only declared. But then everything changed. There was a default method in Java and a default method in C ා. Interface is not like the traditional interface, its concept began to approach to abstract class, a pure abstract thing, suddenly appeared entity, so it bega ...

Demand: stores under each platform classification, name, picture path and score of each store, name, picture path and score of four products under each store Train of thought: At the beginning, stores are dynamic and easy to write, just use Ajax. But it's a bit unrealistic to ask for a query for the products under each store. At the beginning, ...