题解 | #计算整数位数#

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int num = scan.nextInt();
        System.out.println(Shu(num));
        scan.close();

        //write code here......
    }

    public static int Shu(int m) {
        int count = 0;
        if (m > 0) {
            while (m != 0) {
                m /= 10;
                count++;
            }
            return count;
        } else {
            return m;
        }
    }
}