Move Zeroes

using System;
using System.Collections.Generic;

namespace test
{
    class Program
    {
        public static void MoveZeroes(int[] nums)
        {
            if (nums.Length == 1)
                return;
            // 检查该数字之前是否是 0，如果是则与它交换
            for (int j = 0; j < nums.Length; j++)
            {
                for (int i = 1; i < nums.Length; i++)
                {
                    if (nums[i - 1] == 0)
                    {
                        nums[i - 1] = nums[i];
                        nums[i] = 0;
                    }
                }
            }
        }
        public static void Main(string[] args)
        {
            int[] a = { 0, 1, 0, 3, 12 };
            MoveZeroes(a);
            Console.WriteLine("[{0}]", string.Join(", ", a));
        }

    }
}