gettime.h

各种内部排序算法的实现和比较

#include "sys/timeb.h"
#include "time.h"

float getTime()
{//获取系统时间，精确到0.000001s
	struct	_timeb timebuffer;
	char	*timeline;
	float t0,t;

	_ftime( &timebuffer );
	timeline = ctime( & ( timebuffer.time ) );
	t0=float(timebuffer.millitm)/1000;

	t=((timeline[11]-48)*10+(timeline[12]-48))*3600
		+((timeline[14]-48)*10+(timeline[15]-48))*60
		+(timeline[17]-48)*10+timeline[18]-48+t0;

	return t;
}