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();
        scan.close();

        //write code here......
        int count = 0;
        if (num <= 0) {
            System.out.print(num);
        } else{
             while (num > 0) {
            num = num / 10;
            count++;
          }
             System.out.print(count);
        }
       

    }
}