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();

   /* 利用除法判断个数，除到0结束 */
    if(num > 0){
        int count = 1;
        while(true){
            if(num/10 > 0) {
                count++;
                num = num/10;
            }else break;
        }
        System.out.println(count);
    }else System.out.println(num);
    

}

}