/**
     * 由底向上,动态推到
     * 数组保存状态值
     *
     * @param n
     * @return
     */
    public static int Fibonacci(int n) {
        if (n == 0) {
            return 0;
        }
        int[] dp = new int[n + 1];
        dp[0] = 0;
        dp[1] = 1;
        for (int i = 2; i <= n; i++) {
            dp[i] = dp[i - 1] + dp[i - 2];
        }
        return dp[n];
    }