大侠指教 50分送上 多线程调用同一个函数,如何使一个线程结束后,才开始另一个线程 - C++ Builder / Windows SDK/API
代码如下:
TForm1 *Form1;
int x ;
//---------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
: TForm(Owner)
{
x = 0;
}
//---------------------------------------
unsigned long __stdcall MyThreadFunc(void *lpParam)
{
// you code
TCriticalSection * pLockX = new TCriticalSection();
pLockX->Acquire();
srand(time(NULL));
x += 10;
// CCriticalSection critical_section;
for(int i =0; i < 100000; i++)
Form1->Canvas->TextOutA(x,x+20,IntToStr(i));
pLockX->Release();
delete pLockX;
}
void __fastcall TForm1::Button1Click(TObject *Sender)
{
unsigned long ThreadID;
HANDLE Handle = CreateThread(NULL, 0, MyThreadFunc, NULL, 0, &ThreadID);
CloseHandle(Handle);
}
创建临界区没有用,单机button1 两次 如第一个线程运行到80000,则停止,开始运行第二个线程。如何让第一个运行完,再开始第二个
[解决办法]