4elist0503.cpp

《21天学通C＋＋》附盘的原代码。书上的每个例子在这里都有相应的C语言程序。

#include <iostream>
void myFunction();           // prototype

int x = 5, y = 7;            // global variables
int main()
{
	using std::cout;

	cout << "x from main: " << x << "\n";
	cout << "y from main: " << y << "\n\n";
	myFunction();
	cout << "Back from myFunction!\n\n";
	cout << "x from main: " << x << "\n";
	cout << "y from main: " << y << "\n";
	return 0;
}

void myFunction()
{
	using std::cout;

	int y = 10;

	cout << "x from myFunction: " << x << "\n";
	cout << "y from myFunction: " << y << "\n\n";
}