How to define an array of characters in the C language?

In C language, you can use the following syntax to define a character array:

char array_name[size];

In this case, array_name is the name of the character array, size is the size of the array, indicating the number of characters the array can store. For example, the following code defines a character array of size 10.

char name[10];

You can use string literals to initialize a character array, for example:

char greeting[10] = "Hello";

Note that the size of character arrays in C language is fixed and cannot be changed once defined.