第十六周 程序阅读

#include <iostream>
using namespace  std;
namespace CounterNameSpace
{
int upperbound;
int lowerbound;

class counter
{
    int count;
public:
    counter(int n)
    {
        if (n <= upperbound )
        {
            count = n;
        }
        else
        {
            count = upperbound;
        }
    }

    void reset(int n)
    {
        if (n < upperbound)
        {
            count = n;
        }
    }

    int run()
    {
        if (count > lowerbound)
        {
            return count--;
        }
        else
            return lowerbound;
    }
};
}

int main()
{
    CounterNameSpace::upperbound = 100;
    CounterNameSpace::lowerbound = 0;
    CounterNameSpace::counter ob1(10);
int i;

    do
    {
        i = ob1.run();
        cout << i << " ";
    }
    while (i > CounterNameSpace::lowerbound);
    cout << endl;

    CounterNameSpace::counter ob2(20);
    do
    {
        i = ob2.run();
        cout << i << " ";
    }
    while (i > CounterNameSpace::lowerbound);
    cout << endl;

    ob2.reset(100);
    do
    {
        i = ob2.run();
        cout << i << " ";
    }
    while (i > CounterNameSpace::lowerbound);
    cout << endl;

    return 0;
}

运行结果：

注意命名空间

第十六周 程序阅读

原文：http://blog.csdn.net/ljd939952281/article/details/46661763