我最后一个小时就卡在第一道编程题，算法没学过，考完三分钟才写出来，不过已经太迟了 Scanner in = new Scanner(System.in); String s = String.valueOf(in.nextInt()); int re1; int re2; char[] ch = s.toCharArray(); int split = 1; for (int i = 0; i < s.length() - 1; i++) { re1 = 1; re2 = 1; for (int j = 0, k = split; j < split || k < s.length();) { if (j != split) { re1 *= Integer.parseInt(String.valueOf(ch[j])); j++; } if (k != s.length()) { re2 *= Integer.parseInt(String.valueOf(ch[k])); k++; } } if (re1 == re2) { System.out.println("YES"); return; } split++; } System.out.println("NO"); return;