1.代码仅参考, 主要问题：能不能将 .aspx 文件来进行动态编译然后返回编译后的HTML

namespace Test
{

public class Program
{
    static void Main(string[] args)
    {
        // 1.CSharpCodePrivoder
        CSharpCodeProvider objCSharpCodePrivoder = new CSharpCodeProvider();

        // 2.ICodeComplier
        ICodeCompiler objICodeCompiler = objCSharpCodePrivoder.CreateCompiler();

        // 3.CompilerParameters
        CompilerParameters objCompilerParameters = new CompilerParameters();
        objCompilerParameters.ReferencedAssemblies.Add("System.dll");
        objCompilerParameters.ReferencedAssemblies.Add("System.Web.dll");
        objCompilerParameters.GenerateExecutable = false;
        objCompilerParameters.GenerateInMemory = true;

        // 4.CompilerResults
        CompilerResults cr = objICodeCompiler.CompileAssemblyFromSource(objCompilerParameters, GenerateCode());

        if (cr.Errors.HasErrors)
        {
            Console.WriteLine("编译错误：");
            foreach (CompilerError err in cr.Errors)
            {
                Console.WriteLine(err.ErrorText);
            }
        }
        else
        {
            //通过反射，调用HelloWorld的实例
            Assembly objAssembly = cr.CompiledAssembly;
            //object objHelloWorld = objAssembly.CreateInstance("DynamicCodeGenerate.HelloWorld");
            //MethodInfo objMI = objHelloWorld.GetType().GetMethod("OutPut");

            //Console.WriteLine(objMI.Invoke(objHelloWorld, null));
        }

        Console.ReadLine();
    }

    static string GenerateCode()
    {
        StringBuilder sb = new StringBuilder();
        sb.Append("<%@ Page Language=\"C#\" AutoEventWireup=\"true\" Inherits=\"BLL.PageUI.Index\" ValidateRequest=\"false\" %>");
        sb.Append(Environment.NewLine);
        sb.Append("<% string str = \"Hello world! \" %>");
        sb.Append(Environment.NewLine);
        sb.Append("<div><%=str %></div>");

        //sb.Append("using System;");
        //sb.Append(Environment.NewLine);
        //sb.Append("namespace DynamicCodeGenerate");
        //sb.Append(Environment.NewLine);
        //sb.Append("{");
        //sb.Append(Environment.NewLine);
        //sb.Append("    public class HelloWorld");
        //sb.Append(Environment.NewLine);
        //sb.Append("    {");
        //sb.Append(Environment.NewLine);
        //sb.Append("        public string OutPut()");
        //sb.Append(Environment.NewLine);
        //sb.Append("        {");
        //sb.Append(Environment.NewLine);
        //sb.Append("             return \"Hello world!\";");
        //sb.Append(Environment.NewLine);
        //sb.Append("        }");
        //sb.Append(Environment.NewLine);
        //sb.Append("    }");
        //sb.Append(Environment.NewLine);
        //sb.Append("}");

        string code = sb.ToString();
        Console.WriteLine(code);
        Console.WriteLine();

        return code;
    }
}

}
借助文章：https://www.cnblogs.com/maguoyong/articles/5553827.html