2-3.cpp

Accelerated C++ 课后练习题 本人自己完成、可供参考

#include<iostream>
#include<string>
using std::cin;
using std::cout;
using std::endl;
using std::string;
int main()
{
	cout<<"Please enter your first name: ";
	string name;
	cin>>name;
	const string greeting="Hello, "+name+"!";
	
    int pad;
	cout<<"Please enter pad: ";
	cin>>pad;
	
	const int rows=pad*2+3;
	const string::size_type cols=greeting.size()+pad*2+2;
	cout<<endl;

	for(int r=0;r!=rows;++r)
	{
		string::size_type c=0;
		while(c!=cols)
		{
			if(r==pad+1&&c==pad+1)
			{
				cout<<greeting;
				c+=greeting.size();
			}
			else
			{
				if(r==0||r==rows-1||c==0||c==cols-1)
					cout<<"*";
				else
					cout<<" ";
				++c;
			}
		}
		cout<<endl;
	}

	return 0;
}