初始化数组

初始化一维数据

int[] a1 = new int[2];//默认值为0;

int[] a2 = new int[]{1,2};

//初始化等长二维数据

int [,] ab1 = new int [2,3];//默认值为0;

int [,] ab2 = new int [2,3]{{1,2,3},{4,5,6}};

//初始化不等长二维数据

int [][] abc = new int [2][];

abc[0] = new int[]{1,2};

abc[1] = new int[]{3,4,5,6};

//一步步初始化更有助于理解；

string[][] ColumnName = new string[3][];

ColumnName[0] = new string[1] { "aaa"};

ColumnName[1] = new string[] {"aaa","bbb" };

ColumnName[2] = new string[3] {"aaa","bbb","ccc" };