(c) struct member references (arrows) and. (points)

References to struct members have such a pattern:

Arrow (): The left must be a pointer;
Point number (.): The left must be an Entity.

So what if a struct pointer refers to a member and the member is a struct (and an entity), what if you want to refer to the members of this member?

After the experiment found, still follow the above rule namely: the arrow left must be the pointer, the entity must use the dot number reference. For example C->student.age

eg.

You start with an arrow that's C->s1->age.

#include"stdio.h"intmain () {structstudent{intage ; intclass_;    }; structclass2{structStudent s1;    }; structClass2 *c; structClass2 cc={. S1={. age=9,. Class_=2    }    }; C=&cc; printf ("%d",c->s1->age ); return 0;}

An error occurs as Follows:

If you change the code to c->s1.age, the code is as Follows:

#include"stdio.h"intmain () {structstudent{intage ; intclass_;    }; structclass2{structStudent s1;    }; structClass2 *c; structClass2 cc={. S1={. age=9,. Class_=2    }    }; C=&cc; printf ("%d",c->s1.age); return 0;}

Compile by getting the result of the Run:

(c) struct member references (arrows) and. (points)