cpu保持在50%

编程之美的第一个问题

#include "stdafx.h"
#define WORKTIME 10
#define DELAY WORKTIME

int _tmain(int argc, _TCHAR* argv[])
{
    //DWORD i;

    DWORD start,now;
    start=GetTickCount();
    while(1){
        now=GetTickCount();
        if(now-start<WORKTIME)
            continue;
        else{
            Sleep(DELAY);
            start=GetTickCount();
        }

    }
    return 0;
}