一，二维数组

1.二维数组的定义

【格式】类型 数组名 [行数][列~]；

int a[3][4];

智能体编程

cpp

注：这里的行数与列数一样都是常数。

2.二维数组的初始化

【格式】类型 数组名 [行][列]={初值表}；

(1).分行初始化

//下面两种都可以，第一种是对所有的元素初始化

int a[2][3]={

  {1,2,3},{4,5,6}};

int a[2][3]={

  {1,2},{3}};

//没有被初始化的元素默认为零，上述数组的行数也可以不说明

智能体编程

cpp

(2).按储存初始化

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

int a[2][3]={1,2,3,4};

智能体编程

cpp

注：为避免失误推荐不要省略行数。

3.二维数组元素的引用

【格式】数组名[行下标][列下标];

这里的下标与一维数组的下标类似，a[0][0]代表左上角的第一个元素。

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