难道托管对象没有值引用??
namespace ConsoleApplication2{ class Program { static void abc(a ba) { ba.fun(); ba.b = "1234143"; } static void Main(string[] args) { a c= new a(); c.b = "esafdf"; abc(c); abc(c); Console.ReadKey(); } } public class a { public string b; public a() { b = "abcde"; } public void fun() { Console.WriteLine("{0}",b); } }}