IL浅析（一）

代码：
   //System.Net.IPEndPoint ep = new System.Net.IPEndPoint(System.Net.IPAddress.Parse("127.0.0.1"), 80);
   System.Net.Sockets.Socket sock = null;
   sock.Connect(ep);

反IL：
  IL_0011:  stloc.0
  IL_0012:  ldnull
  IL_0013:  stloc.1
  IL_0014:  ldloc.1
  IL_0015:  ldloc.0
  IL_0016:  callvirt   instance void [System]System.Net.Sockets.Socket::Connect(class [System]System.Net.EndPoint)

反汇编：
   System.Net.Sockets.Socket sock = null;
00000070  mov         dword ptr [ebp-20h],0
   sock.Connect(ep);
00000077  mov         edx,dword ptr [ebp-1Ch]
0000007a  mov         ecx,dword ptr [ebp-20h]
0000007d  cmp         dword ptr [ecx],ecx
0000007f  call        dword ptr ds:[09487F24h]