data scope

In the C language, <span>const</span> and <span>static</span> are two very commonly used keywords that relate to the modifiability, lifecycle, and scope of variables. By combining variable declarations, pointer usage, and function design, we can flexibly control the access permissions, visibility, and lifetime of variables. 1. const (Constant Modifier) <span>const</span> is used to declare read-only variables, … Read more