<找工作一>CPU使用率像sin一样

#include <iostream>
#include <windows.h>
#include <math.h>
using namespace std;
void runningSin();
void running();
int main()
{
cout<<"----------------------------CPU Per------------------------"<<endl;
SetThreadAffinityMask(GetCurrentThread(), 0);
//running();
runningSin();
getchar();

}
void running(){
	
	int totalCPU=30;
	int busy=15;
	int idel=totalCPU-busy;
	int startTime=0;
	while(true){
	startTime=GetTickCount();
	while(GetTickCount()-startTime<busy);
	Sleep(idel);}
}
void runningSin(){
	const int SAMPLE_COUNT=300;
	int totalCPU=30;
	double PI=3.1416;
	double sinSamp[SAMPLE_COUNT];
	double pice=2.0/SAMPLE_COUNT;
	for (int i=0;i<SAMPLE_COUNT;i++){
		sinSamp[i]=(totalCPU/2)+(sin(PI*i*pice)*(totalCPU/2));
		cout<<sinSamp[i]<<endl;
	}
	for(int i=0;;i=(i+1)%SAMPLE_COUNT){
		int startTime=GetTickCount();
		while(GetTickCount()-startTime<sinSamp[i]);
		Sleep(totalCPU-sinSamp[i]);
	}
}

 CPU使用率像正弦函数一样。