运行代码：

//类定义练习
#include"std_lib_facilities.h"
#include"GUI/Simple_window.h"
#include"GUI/GUI.h"
#include"GUI/Graph.h"
#include"GUI/Point.h"
//定义类
class Person
{
private:
	string first_name;
	string second_name;
	int person_age;
public:
	Person(string Snn,string Fnn , int aa);
	Person() { second_name = "";first_name=""; person_age = -1; };
	string name() { return second_name+" "+first_name; }
	int age() { return person_age; }
	void set_name(string Snn,string Fnn);
	void set_age(int aa);
};
Person::Person(string Snn,string Fnn , int aa )
{
	if (aa < 0 || aa >= 150)error("wrong age!");
	string nn = Snn + Fnn;
	for (int i = 0; i < nn.size(); i++)
	{
		if (nn[i] == ';' || nn[i] == ':' || nn[i] == '"' || nn[i] == '\'' || nn[i] == '['
			|| nn[i] == ']' || nn[i] == '*' || nn[i] == '&' || nn[i] == '^' || nn[i] == '%'
			|| nn[i] == '$' || nn[i] == '#' || nn[i] == '@' || nn[i] == '!')
			error("wrong name");
	}
	second_name = Snn;
	first_name = Fnn;
	person_age = aa;
}

void Person::set_name(string Snn,string Fnn)
{
	string nn = Snn + Fnn;
	for (int i = 0; i < nn.size(); i++)
	{
		if (nn[i] == ';' || nn[i] == ':' || nn[i] == '"' || nn[i] == '\'' || nn[i] == '['
			|| nn[i] == ']' || nn[i] == '*' || nn[i] == '&' || nn[i] == '^' || nn[i] == '%'
			|| nn[i] == '$' || nn[i] == '#' || nn[i] == '@' || nn[i] == '!')
			error("wrong name");
	}
	second_name = Snn;
	first_name = Fnn;
}

void Person::set_age(int aa)
{
	if (aa < 0 || aa >= 150)error("wrong age!");
	person_age = aa;
}
//-----------------------------------------------------------------------------
//定义类Person的输出操作符<<
ostream& operator <<(ostream& os,Person& pp)
{
	os << "name: " <<"\t" << pp.name() << "\n" << "age: " << "\t" << pp.age() << "\n";
	return os;
}
//----------------------------------------------------------------------------
//定义类Person的输入操作符
istream& operator>>(istream& is, Person& pp)
{
	string Snn="";
	string Fnn="";
	int aa=-1;
	is >> Snn >> Fnn>> aa;
	istringstream iss(Fnn);
	int string_to_number = 0;
	if (iss >> string_to_number)error("incomplicated name--", Snn);
	pp.set_name(Snn,Fnn);
	if (aa >=0 &&aa < 150) { pp.set_age(aa); }
	return is;
}
//-----------------------------------------------------------------------------
int main()
try
{
	cout << "输入格式:Second name  First name  age:\n";
	Person pp,pp0;
	vector<Person>pps;
	while (cin >> pp) 
	{
		pps.push_back(pp); 
		pp = pp0;
	}
	for (int i = 0; i < pps.size(); i++)
	{
		cout << pps[i]<<"\n";
	}
	return 0;
}
catch (exception& e) {
	cerr << "error:" << e.what() << '\n';
	keep_window_open();
	return 1;
}
catch (...) {
	cerr << "Oops:unknown exception!\n";
	keep_window_open();
	return 2;
}

运行结果：