private void buttonRun_Click(object sender, EventArgs e)
{
string s = textBox1.Text;
tree = new TParser(ClientRectangle.Width, ClientRectangle.Height);
tree.Expression(ref s, out tree.top);
if (tree.error == 0)
{
tree.SetXY(tree.top, 200, 60);
label1.Text = "= " + Convert.ToString(tree.top.Value);
MyDraw();
}
else
{
MessageBox.Show("Error = " + tree.error.ToString() + " " + tree.errorToString());
}
}
