动态创建加载程序集

public class CodeProvider
{
    //动态创建Driver类
    private string strStart = "using System;" + "public static class Driver { public static void Main(){ ";
    private string strEnd = " } }";
    /// <summary>
    /// 根据输入的文本动态编译,返回编译结果
    /// </summary>
    public string CompileAndRun(string input, out bool IsError)
    {
        IsError = false;
        string returnData = "";
        CompilerResults cr = null;
        using (var provider = new CSharpCodeProvider())
        {
            var option = new CompilerParameters();
            option.GenerateExecutable = true;
            var sb = new StringBuilder();
            sb.Append(strStart);
            sb.Append(input);
            sb.Append(strEnd);
            //动态创建程序集
            cr = provider.CompileAssemblyFromSource(option, sb.ToString());
        }
        if (cr.Errors.HasErrors)
        {
            //如果编译遇到错误,输出错误信息
            IsError = true; 
            var errorInfo = new StringBuilder();
            foreach (CompilerError item in cr.Errors)
            {
                errorInfo.AppendFormat("{0}:{1}\n", item.Line, item.ErrorText);
            }
            returnData = errorInfo.ToString();
        }
        else
        {
            //把控制台重定向到TextWriter
            var writer = new StringWriter();
            Console.SetOut(writer);
            //通过反射获取编译的程序集中Driver类
            Type type = cr.CompiledAssembly.GetType("Driver");
            //调用Main方法
            type.InvokeMember("Main", BindingFlags.Public | BindingFlags.InvokeMethod | BindingFlags.Static, null, null, null);
            //获取函数在控制台输出的数据
            returnData = writer.ToString();
        }
        return returnData;
    }
}
CodeProvider cp = new CodeProvider();
bool isError;
textBox6.Text = cp.CompileAndRun(textBox5.Text, out isError);