namespace.cc

资深C++讲师授课代码

#include <iostream>
using namespace std;
#include <ctime>

namespace czq{
	int v=20;
	int m=40;
}
using namespace czq;
namespace zdm{
	int v=30;
	int x=50;
}
using zdm::x;
int v=10;
int main()
{
	double v=9.9;
	long n = time(NULL);
	cout << "n=" << n << endl;
	if((n&1)==0)
	{
		const char* v="even";
		cout << v << endl;
		cout << ::v << endl;
	}
	cout << v << endl;
	cout << ::v << endl;
	cout << czq::v << endl;
	cout << zdm::v << endl;
	cout << m << endl;
	cout << x << endl;
	return 1234567;
}