测试程序2
#include <iostream.h>
#include <timer.h>
void sum4()
{
int j = 0;
for (unsigned i = 1; i < 630001;)
{
j += i++;
j += i++;
j += i++;
j += i++;
}
}
void sum5()
{
int j = 0;
for (unsigned i = 1; i < 630001;)
{
j += i++;
j += i++;
j += i++;
j += i++;
j += i++;
}
}
int main()
{
