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;
        int i =0;
        if(num<0)
        {
            System.out.println(num);
        }
        else
        {
            for(i = 0;i<100;i++)
            {
                if(num>0)
                {
                    num = num/10;
                    count++;
                }
                else
                {
                 break;
                }
            }
            System.out.println(count);
        }

    

    }
}