mov ebp,esp
sub esp,44h ;多用了一个4bytes的空间用于存放this指针
push ebx
push esi
push edi
push ecx
lea edi,[ebp-44h]
mov ecx,11h
mov eax,0cccccccch
rep stos dword ptr [edi]
pop ecx
mov dword ptr [ebp-4],ecx
;return (a + b);
mov eax,dword ptr [ebp+8]
add eax,dword ptr [ebp+0ch]
