C Language-pointers

A. Pointer: Ta represents the address, we use the pointer operation is the address to manipulate the value stored on the address, so first understand two symbols * and &;

1) There are three cases of *:ta:

The expression on both sides is the multiplication operator;

A declaration statement with a * represents a pointer variable;

The value operator is represented on the left side of the pointer variable name;

2) &: Take address symbol;

Two. Pointer variable declaration:

Data type * pointer variable name;

1) Assign a value to the pointer: Because the pointer is an address, so here is assigned to TA is an address, to use the address character &;

Pointer variable name =& variable name;

C Language-pointers