static void Main(string[] args)
{
Student st = new Student();
bool N = false;
char digit;
Console.Clear();
while (N == false)
{
Console.WriteLine("\nChoose the number\n1.Show Infomation abot student.\n2.Chage name.\n3.Change Surname.\n" +
"4.Change age.\n5.Change weight.\n6.Change university.\n7.Chnge speciality.\n8.Change the course.\na.Change height.\n0. Exist\n");
digit = Console.ReadKey().KeyChar;
Console.Clear();
switch (digit)
{
case '1': st.show(); break;
case '2': st.rename(ref name1); break;
case '3': st.resurname(); break;
case '4': st.Reage(); break;
case '5': st.Reweight(); break;
case '6': st.Reuniversity(); break;
case '7': st.Respeciality(); break;
case '8': st.Recourse(); break;
case 'a': st.Reheight(); break;
case '0': N = true; break;
default: break;
}
}
}