c＃：不能将'int'转换为'bool'

Question

我是编程新手。请帮我解决这个错误。

        static int cif2(int a)
        {
            do
            {
                if (a % 10) s++;
                a = a / 10;
            } while (a > 0);

            return s;
        }
        static void Main(string[] args)
        {


            do
            {
                ok = true;
                for (int i = 0; i < n - 1; i++)
                    if (cif2(v[i]) >cif2(v[i + 1]))
                    {
                        int t = v[i];
                        v[i] = v[i + 1];
                        v[i + 1] = t;
                        ok = false;
                    }
            } while (!ok);

错误指向if（a％10）但我在这里看不到问题..

Answer 1

您应该拥有以下cif2方法。

static int cif2(int a)
{
    var s = 0;
    do
    {
        if (a % 10 != 0) //I am not sure of your requirement. The other option would be if(a % 10 == 0)
        { 
            s++;
        }
        a = a / 10;
    } while (a > 0);

    return s;
}