运算符优先级 c#

Question

I need to control operator precedence in textbox. It should be 17. How to fix it?

Answer 1

When you sort operators, make sure to provide custom IComparer

void Main()
{
var comparer = new OperatorComparer();
    var operators = new[] { '+', '-', '*', '/' };
    Array.Sort(operators,comparer);

}
public class OperatorComparer : IComparer
{
    public int Compare(object x, object y)
    {
        var xv = (char)x;
        var yv = (char)y;
        if (xv == '*' || xv == '/')
        {
            if(yv == '*' || yv == '/')
                return 0;
            else 
                return -1;
        }
        else if (yv == '+' || yv == '-')
            return 0;
        return 1;
    }
}

THis will help, but without seeing all of your code I still assume it cannot handle parenthesies. Look into AST building parsers, they will help to create real calculator functions.