C#数组用法（原创）--王超C#

数组的声明

int[] arr1;
            int[] arr2 = { 1,2,3};
            int[] arr3 = new int[3];
            int[] arr4 = new int[3] { 1, 2, 3 };
            const int k = 10;
            int[] arr5 = new int[k];

对于数组，for和foreach的区别：for可以修改，foreach为只读

string[] a = { "aaa","bbb","ccc"};
            for(int i = 0; i < a.Length; i++)
            {
                Console.WriteLine(a[i]);
            }
            for (int i = 0; i < a.Length; i++)
            {
                a[i] = "kkk";
            }
            for (int i = 0; i < a.Length; i++)
            {
                Console.WriteLine(a[i]);
            }
            foreach (string s in a)
            {
                Console.WriteLine(s);
            }
            Console.ReadKey();