数组

数组分为一维数组、多维数组以及不规则数组

一、一维数组的定义

//定义一维数组

1.int [ ] intArray1 =new int [ ] {123,12,44}

2.int [ ] intArray2=new  int [3]{123,21,55}

3.int [ ] intArray3={1,2,3,4,5,6}

//取值

for(int i=0; i<intArray.Length;i=i+2)

　　{

　　　　Console.WriteLine(intArray3[i]);

　　}

二、多维数组定义

//定义

1.int [,] arr1=new int [2,3]

2.int [,] arr2=new int[2.3]{{123,4,55},{456,5,55}}

3.int[,] arr3={{123,1,5},{456,78,77}}

//取值

for(int i = 0; i < 2; i++)
            {
                for(int j=0;j<3;j++)
                {
                    Console.Write(arr3[i, j] + "\t");
                }
                Console.WriteLine();
            }

 三、不规则数组

//定义

int[ ][ ] arrs1 =
            {
                new int[ ] {1,2},
                new int[ ] {1,2,3,4},
                new int[ ] {1,2,3,4,5,6,7}
            };

//取值

for (int i = 0; i < arrs1.Length; i++)
            {
                for(int j = 0; j < arrs1[i].Length; j++)
                {
                    Console.Write(arrs1[i][j] + "\t");
                }
                Console.WriteLine();
            }
            Console.ReadKey();