211.cpp

来自「C++实训教程」· C++ 代码 · 共 32 行

/*
	211.cpp
	Written By S.Y.Feng
	demo the  block statement and block
*/
#include <iostream.h>
int n=0;  //Global
main()
{
	 int n = 1;
	 {
		int n = 2 ;
		{
			 int n = 3;
			 cout << "In inner  n=" <<n<<endl;
			 cout << "Global    n=" << ::n <<endl;
 		}
		cout << "In outter n=" <<n<<endl;
		cout << "Global    n=" <<::n<<endl;
	 }
	 cout << "In main() n=" << n<<endl;
	 return 0 ;
}
/*
In inner  n=3
Global    n=0
In outter n=2
Global    n=0
In main() n=1

*/