C language V: two-dimensional arrays, multidimensional arrays

I. Two-D arrays

Definition of a two-dimensional array: Data type array name [constant expression 1][constant expression 2] = {value 1, value 2,.... Value n};

For example:

int Array[3][3] = {{1, 2, 3},

{2, 1, 3},

{3, 1, 2}};

A two-dimensional array array[3][3] is the equivalent of three one-dimensional arrays containing three elements.

Number of array elements how to: two-dimension index multiplication

Accessing elements in a two-dimensional array: double subscript

Multidimensional Arrays:

Three-dimensional array: array name [constant expression 1][constant expression 2][constant expression 3] = {value 1, value 2,.... Value n};

Multidimensional Arrays: Several dimensions, there are several brackets, the access of the element has a few layers subscript, the traversal requires a few layers for the loop

Array of strings:

Char array[constant expression 1][constant expression 2] = {"", "", ...};

Note: The string array, the second dimension, must be 1 larger than the longest string;

To access a single character:

ARRAY[I][J]

Output string:

printf ("%s\n", arra[3]);//access only to the row index,

Output All strings:

for (int i = 0; i < 4; i++) {

printf ("%s", Array[i]);

}

C language V: two-dimensional arrays, multidimensional arrays