#include "Sfuns.h"

int getn()
{
	int n;
	char s1[50];
	char s2[50];
	do
	{
		cin >> s1;
		n=atoi(s1);
		itoa(n,s2,10);
		if( n<=0 || string(s1).length() != string(s2).length() )
		{
			cout << "此處學生信息為大于零的整數,請重新輸入\n"; 
			continue;
		}
		break;
	}while(true);
	return n;
}

char getsex()
{
	string s;
	do
	{
		cin >> s;
		if( s.length()!=1 || (s[0]!='m' && s[0]!='f') )
		{
			cout << "您輸入的字符不合法,請重新輸入\n";
			continue;
		}
		break;
	}while(true);
	return s[0];
}