Multithread

[Kim_liu]

#define WIN32_LEAN_AND_MEAN
#include <stdio.h>
#include <stdlib.h>
#include <windows.h>

DWORD WINAPI ThreadFunc(LPVOID);

int main()
{
HANDLE hThrd;
DWORD threadId;
int i;

for( i = 0; i < 5; i++)
{
hThrd = CreateThread(NULL,
0,
ThreadFunc,
(LPVOID)i,
0,
&threadId);

if ( hThrd )
{
printf("Thread launched %d\n ", i);
}

}
Sleep(2000);

return EXIT_SUCCESS;

}

DWORD WINAPI ThreadFunc(LPVOID n)
{
int i;
for( i = 0; i < 100; i++)
printf("%d%d%d%d%d%d%d%d ",n,n,n,n,n,n,n,n);
return 0;
}

该程序在WIN2000下多次运行，有时Thread launched 3只出现一次，有时Thread launched 3出现两次。请问这是为什么？