程序清单3.8 课本48页

#include<iostream>
using namespace std;
int main()
{
cout.setf(ios_base::fixed,ios_base::floatfield);
float tub=10.0/3.0;
double mint=10.0/3.0;
const float million=1.0e6;

cout<<"tub = "<<tub;
cout<<", a million tubs = "<<million*tub;
cout<<", \nand ten miilion tubs = ";
cout<<10*million*tub<<endl;

cout<<"mint = "<<mint<<" and a million mints = ";
cout<<million*mint<<endl;
system("pause");
return 0;
}