.method public hidebysig instance int32 Add(int32 x,int32 y) cil managed {

using System; namespace CilExample {     //应用程序入口     public class CilApp     {         static void Main()         {             Calc calc = new Calc();             int result = calc.Add(10,84);             Console.WriteLine("10+84={0}",result);
            //按回车结束程序             Console.ReadLine();         }     }
    //C#计算器     public class Calc     {         public int Add(int x, int y)         {             return x + y;         }     } } 一旦编译器 csc.exe 编译这段代码 就会得到一个单文件*.exe程序集 这个程序集中包含一个程序集清单 CIL指令和描述Calc 与CilApp类的各方面数据 例如如果用ildasm.exe打开该程序集 会发现Add()方法被CIL表示为
.method public hidebysig instance int32 Add(int32 x,int32 y) cil managed {     .maxstack 2 .locals int ([0] int32 cs$1$0000) IL_0000:ldarg.1 IL_0001:ldarg.2 IL_0002:add IL_0003:stloc:0 IL_0004:br.s   IL_0006 IL_0006:ldarg.0 IL_0007:ret }
Namespace CilExample     Module CilApp         Sub Main()             Dim c As New Calc             result = c.Add(10, 84)             Console.WriteLine("10+84={0}", result)             Console.ReadLine()         End Sub     padmapper End Module
    Class Calc         Public Function Add(ByVal x As Integer, ByVal y As Integer) As Integer             Return x + y         End Function     End Class
.method public hidebysig instance int32 Add(int32 x,int32 y) cil managed {     .maxstack 2 .locals int ([0] int32 Add) IL_0000:nop IL_0001:ldarg.1 IL_0002:ldarg.2 IL_0003:add.ovf IL_0004:stloc.0   IL_0005:br.s     IL_0007 IL_0007:ldarg.0 IL_0008:ret }