private void Equal_Button(object sender, RoutedEventArgs e)
{
string num = this.Input.Text;
if (num != "")
{
arrayList.Add(num);
}
Logical logical = new Logical();
string result = logical.Analysis(arrayList); //引用dll文件计算方法
if (result == "") //计算出错
{
if (logical.code == 1) //除零错误
{
this.Input.Text = "Divisor cannot be zero";
this.Input.FontSize = 30;
}
else if (logical.code == 2) //无效输入，如tan(90)
{
this.Input.Text = "Invalid input";
this.Input.FontSize = 30;
}
else
{
this.Input.Text = "Error";
}
this.Result.Text = "";
isError = true;
arrayList.Clear();
return;
}
this.Result.Text = this.Result.Text + num + "=" + result;
this.Input.Text = result;
arrayList.Clear();
}