C 中分析仪的内省分析

1. 创建新的控制台应用程序
2. 添加 NuGet 包 Microsoft.CodeAnalysis
3. 导入命名空间 Microsoft.CodeAnalysis.MSBuild，System.Linq 和 Microsoft.CodeAnalysis.CSharp.Syntax
4. 在 Main 方法中编写以下示例代码：

// Declaring a variable with the current project file path.
const string projectPath = @"C:\<your path to the project\<project file name>.csproj";

// Creating a build workspace.
var workspace = MSBuildWorkspace.Create();
        
// Opening this project.
var project = workspace.OpenProjectAsync(projectPath).Result;

// Getting the compilation.
var compilation = project.GetCompilationAsync().Result;

// As this is a simple single file program, the first syntax tree will be the current file.
var syntaxTree = compilation.SyntaxTrees.First();

// Getting the root node of the file.
var rootSyntaxNode = syntaxTree.GetRootAsync().Result;

// Finding all the local variable declarations in this file and picking the first one.
var firstLocalVariablesDeclaration = rootSyntaxNode.DescendantNodesAndSelf().OfType<LocalDeclarationStatementSyntax>().First();

// Getting the first declared variable in the declaration syntax.
var firstVariable = firstLocalVariablesDeclaration.Declaration.Variables.First();

// Getting the text of the initialized value.
var variableInitializer = firstVariable.Initializer.Value.GetFirstToken().ValueText;

// This will print to screen the value assigned to the projectPath variable.
Console.WriteLine(variableInitializer);

Console.ReadKey();

运行项目时，你将看到在顶部声明的变量打印到屏幕上。这意味着你成功地自我分析了一个项目并在其中找到了一个变量。