C#动态执行代码(改编)

http://www.cnblogs.com/zlinke/archive/2011/01/28/1946785.html

 

/* 初学C#,好多概念不太清晰,手头项目需要用到动态代码执行,网上搜了一堆,觉得下面这个比较合我用,就拿过来改了一下.

本来还应该加上代码正确性检测的(目前的情况是,如果动态代码有错误,实际反映出来的错误信息有可能是"未能加载程序或文件集....或它的某一个依赖项,系统找不到指定的文件", 结果造成被误导了,汗.)

先凑合着用. 到后面再修改增加其他功能.

// 摘录自 http://www.cnblogs.com/kidfruit/ 地精实验室

*/

using System;using System.Collections.Generic;using System.Reflection;using System.Text;using System.CodeDom;using System.CodeDom.Compiler;namespace Dynamic{    #region DynamicClass 动态运行代码类    /// <summary>    /// 动态运行代码类    /// </summary>    public class DynamicClass    {        #region Exec (code) 动态运行代码         /// <summary>        /// 动态运行代码        /// </summary>        /// <param name="code">动态代码(主体即可),系统会自动加上包含文件,名字空间,临时运行类名,临时运行函数名</param>        /// <returns>装箱返回对象</returns>        public  static object Exec(string code)        {            string strNamespace = "DynamicClass";            string strDynamicClass = "Temp_Dynamic_Exec";            string strDynamicFuncation = "Temp_Dynamic_ExecScript";            CompilerParameters vCompilerParameters = new CompilerParameters();            vCompilerParameters.GenerateExecutable = false;            vCompilerParameters.GenerateInMemory = true;            vCompilerParameters.ReferencedAssemblies.Add("System.Windows.Forms.dll");                        code += "/n return /"/";/n";                        string vSource = "using System;/n"                + "using System.Windows.Forms; /n"                + "namespace " + strNamespace + "/n{/n"                + " public class " + strDynamicClass + "/n"                + " {/n"                + "    public object " + strDynamicFuncation + "()/n"                + "    {/n"                + " "                + "     " + code + "/n"                + "    }/n"                + " }/n}/n";            CompilerResults vCompilerResults = CodeDomProvider.CreateProvider("CSharp").CompileAssemblyFromSource(vCompilerParameters, vSource);            Assembly vAssembly = vCompilerResults.CompiledAssembly;            object vTemp = vAssembly.CreateInstance(strNamespace + "." + strDynamicClass);            MethodInfo vTest = vTemp.GetType().GetMethod(strDynamicFuncation);            return vTest.Invoke(vTemp, null);        }        #endregion    }    #endregion}