题解 | #字符串分隔#

import java.util.Scanner;

//下面两端代码个人认为第一种更好，但是执行效率上第一种用了42ms，第二种用了40ms，不理解
// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        String str = in.nextLine();
        str = str.length() % 8 == 0 ? str : str + "00000000";
        for (int i = 0; i < str.length() / 8; i++) {
            String substring = str.substring(i * 8, (i + 1) * 8);
            System.out.println(substring);
        }
    }
}

public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        // 注意 hasNext 和 hasNextLine 的区别
        while (in.hasNextLine()) { // 注意 while 处理多个 case
            String str = in.nextLine();
            int length = str.length();
            int len = length / 8;
            StringBuilder sb = new StringBuilder();
            for (int i = 0; i < len; i++) {
                String strTemp = str.substring(i * 8, (i + 1) * 8);
                System.out.println(strTemp);

            }

            sb.append(str.substring(len * 8, str.length()));
            for (int i = 0; i < 8 - (length - len * 8) && (length - len * 8 > 0); i++) {
                sb.append('0');
            }
            System.out.println(sb);
        }
    }
}