C/C++中的多線程入亹源碼

作者： 賀憶東

一個很簡單的多線程程式，主要用於瞭解臨界區的使用 #include #include #include #pragma comment(lib,"libcmt.lib") const int NLOOP = 100; int counter = 0; void doit(void*); CRITICAL_SECTION beswap ; int main() {  HANDLE pnt[2];  InitializeCriticalSection(&beswap);  pnt[0] = (HANDLE)_beginthread(doit,0,NULL);  pnt[1] = (HANDLE)_beginthread(doit,0,NULL);  WaitForMultipleObjects( 2, pnt, TRUE, 1000L);  DeleteCriticalSection(&beswap);    return 0; } void doit(void*) {  printf("go.../n");  int i, val = 0;  for(i = 0; i < NLOOP; ++i)  {   EnterCriticalSection(&beswap);   val = counter;   printf("%d/n",val+1);   counter = val + 1;   LeaveCriticalSection(&beswap);  }  printf("end.../n");  return ; }