C + + pointers to struct-body variables

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Defined:

The pointer to the struct variable is the starting address of the memory segment that the variable is occupying. You can set a pointer variable to point to a struct variable, at which point the value of the pointer variable is the starting address of the struct variable.

Set P is an array that points to a struct variable, you can invoke the member in the struct that points to it in the following way:

(1) struct variable. Member name. For example, Stu.num.

(2) (*P). Member name. For example, (*p). Num.

(3) p-> member name. For example, P->num.

The code is as follows:

#include <iostream> #include <string>using namespace std;struct candidate{string name; int count;}; int main () {candidate c_leader[2]={"Tom", 5, "Marry", 8}; Candidate *p1,*p2; P1=c_leader; cout<< (*P1) .name<< ":" << (*P1) .count<<endl; p2=&c_leader[1]; cout<<p2->name<< ":" <<p2->count<<endl; return 0;}

　　

Description, an array of one-dimensional arrays represents the address of the first element, as is the case with other arrays.

We learned that there are many types of member variables in a struct, so can we include pointer variable members? The answer is yes.

Is it possible to include struct variables that point to similar structures? Of course, the list is applied to this principle.

#include <iostream> #include <string>using namespace std;struct candidate{string name; int count; Candidate *next;//defines a pointer to a candidate type variable};int main () {    candidate c_leader[3]; c_leader[0].name= "Tom"; C_leader[0] . count=5; c_leader[0].next=&c_leader[1]; C_leader[1].name= "Nick"; c_leader[1].count=9; c_leader[1].next=&c_leader[2]; C_leader[2].name= "Jim"; c_leader[2].count=10; C_leader[2].next=null; Candidate *p=c_leader; while (p!=null) {  cout<<p->name<< ":" <<p->count<<endl;  can also (p+1)->name ... To implement  p=p->next;} return 0;}

　　

C + + pointers to struct-body variables