题解 | #HTTP状态码#

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.println(num);
    }else{
        while(num > 0){
            count++;
            num/=10;
        }
        System.out.println(count);
    }

}

}