C language pointer usage summaryCopy the code

C language pointer, that is, memory storage address. C allows you to store Pointers in a variable called a pointer variable. Pointer variables can hold the addresses of primitive types of data, arrays, functions, and other pointer variables. Secondly, pointer variables can be added or subtracted, such as p++, p+ I, and p-= I. A pointer variable must be initialized before it is used, otherwise it cannot be determined where the pointer points to. Lead to late file search trouble. Void * Pointers can point to the memory space of any variable and const modifies pointer variables and pointer types