.Net Core

源代码的动态编译问题，我们知道这个可以利用Roslyn来解决。
实现一个编译助手类，它的Compile方法将会对参数sourceCode提供的源代码进行编译。该方法返回源代码动态编译生成的程序集，它的第二个参数代表引用的程序集。

添加Nuget包：

    <PackageReference Include="Microsoft.CodeAnalysis.Common" Version="3.7.0" />
    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="3.7.0" />

编译助手类：

public class Compiler
    {
        public Assembly Compile(string text, params Assembly[] referencedAssemblies)
        {
            var references = referencedAssemblies.Select(it => MetadataReference.CreateFromFile(it.Location));
            var options = new CSharpCompilationOptions(OutputKind.DynamicallyLinkedLibrary);
            var assemblyName = "_" + Guid.NewGuid().ToString("D");
            var syntaxTrees = new SyntaxTree[] { CSharpSyntaxTree.ParseText(text) };
            var compilation = CSharpCompilation.Create(assemblyName, syntaxTrees, references, options);
            using (var stream = new MemoryStream())
            {
                var compilationResult = compilation.Emit(stream);
                if (compilationResult.Success)
                {
                    stream.Seek(0, SeekOrigin.Begin);
                    return Assembly.Load(stream.ToArray());
                }
                throw new InvalidOperationException("Compilation error");
            }
        }
    }

动态编译：

string code = @"public class Person
                            {
                                public static string SayName()=>""fan"";
                            }";
            var compiler = new Compiler();
            var assembly = compiler.Compile(code, Assembly.Load(new AssemblyName("System.Runtime")), typeof(object).Assembly);
            var personType = assembly.GetType("Person");
            if (personType != null)
            {
                var method = personType.GetMethod("SayName");
                var result = method.Invoke(null, null);// fan
            }

参考：https://www.cnblogs.com/artech/archive/2020/04/07/dynamic-controllers.html