crosoft YaHei"; border-left: 5px solid rgb(255, 97, 0); background: rgb(255, 255, 255); font-size: 20px; color: rgb(69, 69, 69); white-space: normal;">Classic ASP - Active Server Pages (Dynamic Server Pages)
ASP, full name Active Server Pages (Dynamic Server Pages), also known as Classic ASP, was Microsoft's first server in 1998 Introduced by end-side scripting engine.
ASP is a technology that enables scripts in web pages to be executed on an Internet server.
The file extension of an ASP page is .asp and is usually written in VBScript.
If you want to learn classic ASP, please visit our classic ASP tutorial.
ASP.NET is a new generation of ASP. It is incompatible with classic ASP, but ASP.NET may include classic ASP.
ASP.NET pages are compiled, which makes them run faster than classic ASP.
ASP.NET has better language support, a large set of user controls and XML-based components, and integrated user authentication.
ASP.NET pages have an extension of .aspx and are usually written in VB (Visual Basic) or C# (C sharp).
Controls in ASP.NET can be written in different languages (including C++ and Java).
When a browser requests an ASP.NET file, the ASP.NET engine reads the file, compiles and executes the script file, and returns the results to the browser as a normal HTML page.
ASP.NET Razor
Razor is a new, simple markup syntax for embedding server code into ASP.NET web pages, much like classic ASP.
Razor has the functionality of traditional ASP.NET, but is easier to use and easier to learn.
ASP.NET Programming Languages
This tutorial covers the following programming languages:
Visual Basic (VB.NET)
C# (pronounced: C sharp )
ASP.NET Server Technologies
This tutorial introduces the following server technologies
Web Pages (Razor syntax)
MVC (Model-View-Control Server)
Web Forms (Traditional ASP.NET)
ASP.NET Development Tools
ASP.NET supports the following development tools:
WebMatrix
Visual Web Developer
Visual Studio
In this tutorial, the Web Pages tutorial uses WebMatrix, and the MVC tutorial and Web Forms tutorial use Visual Web Developer.
ASP.NET file extension
The file extension for classic ASP files is .asp
The file extension for ASP.NET files is .aspx
The file extension of ASP.NET files in Razor C# syntax is .cshtml
The file extension of ASP.NET files in Razor VB syntax is .vbhtml
[Related recommendations]
1. ASP.NET free video tutorial
2. Detailed introduction to ASP.NET MVC--routing
3. Detailed introduction to ASP.NET MVC--controller
4. Detailed introduction to ASP.NET MVC--View
5. What is ASP.NET MVC? Summary of ASP.NET MVC
6. In-depth understanding of the differences between ASP.NET MVC and WebForm
The above is the detailed content of A simple definition and introduction of ASP.NET. For more information, please follow other related articles on the PHP Chinese website!

C# is a programming language released by Microsoft in 2000, aiming to combine the power of C and the simplicity of Java. 1.C# is a type-safe, object-oriented programming language that supports encapsulation, inheritance and polymorphism. 2. The compilation process of C# converts the code into an intermediate language (IL), and then compiles it into machine code execution in the .NET runtime environment (CLR). 3. The basic usage of C# includes variable declarations, control flows and function definitions, while advanced usages cover asynchronous programming, LINQ and delegates, etc. 4. Common errors include type mismatch and null reference exceptions, which can be debugged through debugger, exception handling and logging. 5. Performance optimization suggestions include the use of LINQ, asynchronous programming, and improving code readability.

C# is a programming language, while .NET is a software framework. 1.C# is developed by Microsoft and is suitable for multi-platform development. 2..NET provides class libraries and runtime environments, and supports multilingual. The two work together to build modern applications.

C#.NET is a powerful development platform that combines the advantages of the C# language and .NET framework. 1) It is widely used in enterprise applications, web development, game development and mobile application development. 2) C# code is compiled into an intermediate language and is executed by the .NET runtime environment, supporting garbage collection, type safety and LINQ queries. 3) Examples of usage include basic console output and advanced LINQ queries. 4) Common errors such as empty references and type conversion errors can be solved through debuggers and logging. 5) Performance optimization suggestions include asynchronous programming and optimization of LINQ queries. 6) Despite the competition, C#.NET maintains its important position through continuous innovation.

The future trends of C#.NET are mainly focused on three aspects: cloud computing, microservices, AI and machine learning integration, and cross-platform development. 1) Cloud computing and microservices: C#.NET optimizes cloud environment performance through the Azure platform and supports the construction of an efficient microservice architecture. 2) Integration of AI and machine learning: With the help of the ML.NET library, C# developers can embed machine learning models in their applications to promote the development of intelligent applications. 3) Cross-platform development: Through .NETCore and .NET5, C# applications can run on Windows, Linux and macOS, expanding the deployment scope.

The latest developments and best practices in C#.NET development include: 1. Asynchronous programming improves application responsiveness, and simplifies non-blocking code using async and await keywords; 2. LINQ provides powerful query functions, efficiently manipulating data through delayed execution and expression trees; 3. Performance optimization suggestions include using asynchronous programming, optimizing LINQ queries, rationally managing memory, improving code readability and maintenance, and writing unit tests.

How to build applications using .NET? Building applications using .NET can be achieved through the following steps: 1) Understand the basics of .NET, including C# language and cross-platform development support; 2) Learn core concepts such as components and working principles of the .NET ecosystem; 3) Master basic and advanced usage, from simple console applications to complex WebAPIs and database operations; 4) Be familiar with common errors and debugging techniques, such as configuration and database connection issues; 5) Application performance optimization and best practices, such as asynchronous programming and caching.

C# is widely used in enterprise-level applications, game development, mobile applications and web development. 1) In enterprise-level applications, C# is often used for ASP.NETCore to develop WebAPI. 2) In game development, C# is combined with the Unity engine to realize role control and other functions. 3) C# supports polymorphism and asynchronous programming to improve code flexibility and application performance.

C# and .NET are suitable for web, desktop and mobile development. 1) In web development, ASP.NETCore supports cross-platform development. 2) Desktop development uses WPF and WinForms, which are suitable for different needs. 3) Mobile development realizes cross-platform applications through Xamarin.


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