How to create and use a CancellationToken in C#?

In Unity, 3D physics engines and AI behavior trees can be implemented through C#. 1. Use the Rigidbody component and AddForce method to create a scrolling ball. 2. Through behavior tree nodes such as Patrol and ChasePlayer, AI characters can be designed to patrol and chase players.

The C#.NET developer community provides rich resources and support, including: 1. Microsoft's official documents, 2. Community forums such as StackOverflow and Reddit, and 3. Open source projects on GitHub. These resources help developers improve their programming skills from basic learning to advanced applications.

The main differences between C# and C are memory management, polymorphism implementation and performance optimization. 1) C# uses a garbage collector to automatically manage memory, while C needs to be managed manually. 2) C# realizes polymorphism through interfaces and virtual methods, and C uses virtual functions and pure virtual functions. 3) The performance optimization of C# depends on structure and parallel programming, while C is implemented through inline functions and multithreading.

C# implements a structured exception handling mechanism through try, catch and finally blocks. Developers place possible error code in the try block, catch specific exceptions (such as IOException, SqlException) in the catch block, and perform resource cleaning in the finally block. 1. Specific exceptions should be caught instead of general exceptions (such as Exception) to avoid hiding serious errors and improve debugging efficiency; 2. Avoid over-use try-catch in performance-critical code. It is recommended to check conditions in advance or use methods such as TryParse instead; 3. Always release resources in finally blocks or using statements to ensure that files, connections, etc. are closed correctly.

C#.NET is widely used in the modern world in the fields of game development, financial services, the Internet of Things and cloud computing. 1) In game development, use C# to program through the Unity engine. 2) In the field of financial services, C#.NET is used to develop high-performance trading systems and data analysis tools. 3) In terms of IoT and cloud computing, C#.NET provides support through Azure services to develop device control logic and data processing.

CLR is a runtime engine that executes C# code, responsible for code execution, memory management, security and exception handling. Its workflow is as follows: 1. The C# source code is first compiled into an intermediate language (IL), 2. The runtime CLR converts IL into machine code for a specific platform through instant (JIT) compilation and caches to improve performance; 3. The CLR automatically manages memory, allocates and frees object memory through garbage collector (GC), and supports the use of Finalizers and using statements to process unmanaged resources; 4. CLR forces type safety, validates IL code to prevent common errors, and allows unsafe code blocks when necessary; 5. Exception processing is uniformly managed by CLR, adopts a try-catch-finally structure

In C#, Task.Run is more suitable for simple asynchronous operations, while Task.Factory.StartNew is suitable for scenarios where task scheduling needs to be finely controlled. Task.Run simplifies the use of background threads, uses thread pools by default and does not capture context, suitable for "sending and forgetting" CPU-intensive tasks; while Task.Factory.StartNew provides more options, such as specifying task schedulers, cancel tokens, and task creation options, which can be used for complex parallel processing or scenarios where custom scheduling is required. The difference in behavior between the two may affect task continuation and subtask behavior, so the appropriate method should be selected according to actual needs.

C# and .NET provide powerful features and an efficient development environment. 1) C# is a modern, object-oriented programming language that combines the power of C and the simplicity of Java. 2) The .NET framework is a platform for building and running applications, supporting multiple programming languages. 3) Classes and objects in C# are the core of object-oriented programming. Classes define data and behaviors, and objects are instances of classes. 4) The garbage collection mechanism of .NET automatically manages memory to simplify the work of developers. 5) C# and .NET provide powerful file operation functions, supporting synchronous and asynchronous programming. 6) Common errors can be solved through debugger, logging and exception handling. 7) Performance optimization and best practices include using StringBuild