We learnpointerWhen there may be a lot of things so that we confuse so I use a few small experimental program to give you answers to your questions：
First, from the definition, the variable is a pointer to the address stored in the variable。
Unary operator * is the indirection or dereference operator
Unary operator&Take for an object address，It can only be applied to objects in memory
That * (indirection obtained[……]