指针的学习

    pstr = str;
00BD179E  mov         dword ptr [pstr (0BD9010h)],offset str (0BD9000h)  

    pstr[1] = '1';
00BD17A8  mov         eax,1  
00BD17AD  shl         eax,0  
00BD17B0  mov         ecx,dword ptr [pstr (0BD9010h)]  
00BD17B6  mov         byte ptr [ecx+eax],31h  
    *(pstr++) = '2';
00BD17BA  mov         eax,dword ptr [pstr (0BD9010h)]  
00BD17BF  mov         byte ptr [eax],32h  
00BD17C2  mov         ecx,dword ptr [pstr (0BD9010h)]  
00BD17C8  add         ecx,1  
00BD17CB  mov         dword ptr [pstr (0BD9010h)],ecx  
    *(pstr + 1) = '3';
00BD17D1  mov         eax,dword ptr [pstr (0BD9010h)]  
00BD17D6  mov         byte ptr [eax+1],33h  

    printf("pstr =%s=\n", pstr);
00BD17DA  mov         eax,dword ptr [pstr (0BD9010h)]  
00BD17DF  push        eax  
00BD17E0  push        offset string "pstr =%s=\n" (0BD7B40h)  
00BD17E5  call        _printf (0BD1325h)  
00BD17EA  add         esp,8