private void button1_Click(object sender, EventArgs e)
{
string userName = richTextBox1.Text;
string password = richTextBox2.Text;
string cpassword = richTextBox3.Text;
if (InfoCheck(userName, password, cpassword) == 0)
{
SqlClass.NonQuery("insert into account(userName,password) values('" + userName + "','" + Encrypt.MD5Encrypt32(password) + "')");
}
}