Method power

src/main/java/top/misec/utils/HelpUtil.java:24–31

(int a, int b)

    private static long add = 8728348608L;

    public static long power(int a, int b) {
        long power = 1;
        for (int c = 0; c < b; c++) {
            power *= a;
        }

        return power;
    }

    public static String bv2av(String s) {
        long r = 0;