dnSpy 是一款针对 .NET 程序的逆向工程工具，调试器和汇编编辑器等功能组件，而且可以通过自己编写扩展插件的形式轻松实现扩展。(DnSpy is a functional component for.NET program, such as reverse engineering tool, debugger and assembler editor, and it can be extended easily by writin