private void button1_Click(object sender, EventArgs e)
{
student_hzw st = new student_hzw();
st.Name_hzw = Name.Text;
st.Sex_hzw = Sex.Text;
st.PhoneNumber_hzw = Name.Text;
st.Job_hzw = Job.Text;
st.Adress_hzw = Adress.Text; st.FriendShip = Relationship.Text;
f1.Ph.Add(st.Name_hzw, st);
f1.FullData(f1.Ph);
this.Close();
}