#include
#include
#include
int main(void)
{
long i = 10000000L;
clock_t start, finish;
double duration;
/* 测量一个事件持续的时间*/
printf( "Time to do %ld empty loops is ", i) ;
start = clock();
while( i-- );
finish = clock();
duration = (double)(finish - start) / CLOCKS_PER_SEC;
printf( "%f seconds\n", duration );
system("pause");
}
可以在程序中加入，看你程序的运行时间，相当于一个时钟
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