VC编译后会有代码被忽略掉？

[lengx7]

源代码:

	strcpy_s(UAExA.ScrName,256,"asdasdasdad");
	UAExA.ID=ID;
	UAExA.Ar=1;
	UAExA.JianNum=123;
	AfxBeginThread(BackFlashSetFun,(LPVOID)&UAExA);

编译后的汇编代码:

	strcpy_s(UAExA.ScrName,256,"asdasdasdad");
00DB02E1  push        offset string "asdasdasdad" (0DF4190h) 
00DB02E6  lea         ecx,[esp+14h] 
00DB02EA  push        100h 
00DB02EF  push        ecx  
00DB02F0  call        strcpy_s (0DCF7BDh) 
00DB02F5  add         esp,18h 
	UAExA.ID=ID;
	UAExA.Ar=1;
	UAExA.JianNum=123;
	AfxBeginThread(BackFlashSetFun,(LPVOID)&UAExA);
00DB02F8  push        0    
00DB02FA  push        0    
00DB02FC  push        0    
00DB02FE  push        0    
00DB0300  lea         edx,[esp+14h] 
00DB0304  push        edx  
00DB0305  push        offset BackFlashSetFun (0DB00E0h) 
00DB030A  mov         dword ptr [esp+124h],esi 
00DB0311  mov         dword ptr [esp+11Ch],1 
00DB031C  mov         dword ptr [esp+128h],7Bh 
00DB0327  call        AfxBeginThread (0DC71BCh) 

源代码中的
UAExA.ID=ID;
UAExA.Ar=1;
UAExA.JianNum=123;
被忽略掉了？汇编代码中也没有，调试的时候发现这3处也没有被赋值

[schlafenhamster]

00DB030A mov dword ptr [esp+124h],esi ；UAExA.ID=ID; 00DB0311 mov dword ptr [esp+11Ch],1 ；UAExA.Ar=1; 00DB031C mov dword ptr [esp+128h],7Bh ；UAExA.JianNum=123; 这3句不是吗