.NET中C＃指针的使用

Question

我想知道是否有人可以给我一个在.Net中的C＃中使用指针的好例子，为什么您选择使用指针？

Answer 1

This isn't really a question to specific to ASP.NET.

If you are going to use pointers in .NET, the predominant reason is that you have an interop scenario where it is going to be easier to use pointers in unsafe code instead of IntPtr instances.

The second most popular (and distant) reason is because you might actually have a performance gain in processing large amounts of data in unsafe code than in managed code. Image processing algorithms are a good example of this.

Answer 2

If you wanted to do some performant image processing for a web application, you might want to consider using pointers there. See Image Processing Basics in C# on codeproject.com.

Answer 3

仅当使用非托管代码或进行点名调用时，才需要使用指针。