LINQ初体验

传统方式

static void Main(string[] ags){
			int[] nums = {1,7,2,6,5,4,9,13,20};
	      	List<int> list = new List<int>();
            foreach (int item in nums)
            {
                if (item % 2 != 0)
                {
                    list.Add(item);
                }
            }
            list.Sort();
            list.Reverse();
}

LINQ方式

static void Main(string[] ags){
			int[] nums = {1,7,2,6,5,4,9,13,20 };
            var list = from num in nums
            where num % 2 != 0
           	orderby num descending
            select num;
}