子线程循环 10 次，接着主线程循环 100 次，接着又回到子线程循环10 次(线程面试：windows下实现)

浏览MoreWindows的文章写出来的

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#include<stdio.h>
#include<process.h>
#include<windows.h>

unsignedint__stdcallFun(void*pPM);
constintTHREAD_NUM=1;

//循环次数
constintLOOP=6;

//两个互斥事件
HANDLEg_hThreadEvent1;
HANDLEg_hThreadEvent2;

intmain()
{
printf("\t子线程循环10次，接着主线程循环100次，接着又回到子线程循环10次，\n接着再回到主线程又循环100次，如此循环50次\n");

inti=0,j;
HANDLEhdl[THREAD_NUM];

g_hThreadEvent1=CreateEvent(NULL,FALSE,FALSE,NULL);
g_hThreadEvent2=CreateEvent(NULL,FALSE,TRUE,NULL);

hdl[0]=(HANDLE)_beginthreadex(NULL,0,Fun,NULL,0,NULL);

for(i=0;i<LOOP;i++)
{
WaitForSingleObject(g_hThreadEvent1,INFINITE);

for(j=0;j<4;j++)
{
printf("主要线程编号是,在循环第%d次\n",j+1);
}
SetEvent(g_hThreadEvent2);
Sleep(200);

}

CloseHandle(g_hThreadEvent2);
CloseHandle(g_hThreadEvent1);

for(i=0;i<THREAD_NUM;i++)
CloseHandle(hdl[i]);

return0;
}

unsignedint__stdcallFun(void*pPM)
{
intnum=0;
inti=0;

for(i=0;i<LOOP;i++)
{
WaitForSingleObject(g_hThreadEvent2,INFINITE);

for(num=0;num<2;num++)
{
printf("线程编号是%d,在循环第%d次\n",GetCurrentThreadId(),num+1);
}

SetEvent(g_hThreadEvent1);
}
return0;
}

一个全局变量tally，两个线程并发执行（代码段都是ThreadProc)，问两个线程都结束后，tally取值范围。

inttally=0;//glable

voidThreadProc()

{

for(inti=1;i<=50;i++)

tally+=1;

}