数组、冒泡排序

数组的定义方式：

int[] Scores={1,2,3,4,5};//方式1
int[] Scores=[5]{1,2,3,4,5};//方式2
int[] Scores1=new int[5];//0向量，5个0
Console.WriteLine(Scores[0]);
foreach(int score in Scores){//遍历数组，foreach语句
    Console.WriteLine(score);
    }

数组从小到大排序：Array.Sort(数组);

        public static void Main(string[] args)
        {
            Console.WriteLine("请输入一组数据，以空格分隔：");
            string str = Console.ReadLine();//回车后，才执行以下代码
            string[] strArray = str.Split(' ');//字符串按空格拆分成数组
            int[] nums = new int[strArray.Length];//等长度0数组
            for (int i = 0; i < strArray.Length; i++) {//替换思维
                nums[i] = Convert.ToInt32(strArray[i]);
            }
            Array.Sort(nums);//从小到大排序，nums被改变
            foreach (int num in nums) {
                Console.Write(num + " ");
            }
            Console.ReadKey();        
        }

冒泡排序

int[] scores = { 89, 90, 98, 56, 60, 91, 93, 85 };
            Console.WriteLine("排序前：");
            foreach(int score in scores)
            {
                Console.Write(score + " ");
            }
            Console.WriteLine();
            Console.ReadKey();

            int temp;
            for (int i = 0; i < scores.Length - 1; i++) {
                for(int j = i + 1; j < scores.Length; j++)
                {
                    if (scores[i] < scores[j]) {
                        temp=scores[i];
                        scores[i] = scores[j];
                        scores[j] = temp;
                    }
                }
            }
            Console.WriteLine("从大到小排序：");
            foreach (int score in scores) {
                Console.Write(score + " ");
            }
            Console.ReadKey();