private void button18_Click(object sender, EventArgs e)
{//'='
if (leBrac == true || biOpe == true || lastStr.Count == 0)
{
}
else
{
int n_left = 0, n_right = 0; //已经输入的左右括号个数
foreach (String i in lastStr)
{
if (i == ",(,")
{
n_left++;
}
if (i == ",),")
{
n_right++;
}
}
if (n_left != n_right)
{
} //左右括号数不配对则不能开始计算
else
{
Calculate calculate = new Calculate();
Pair answer = calculate.Run(lastStr);
if (answer.flag == false)
{
textBox1.Text = "Error";
}
else
{
textBox2.Text = textBox1.Text;
textBox1.Text = Convert.ToString(answer.answer);
}
SetBool();
lastStr.Clear();
haveDot = false;
beginning = true;
}
}
}
