typedef struct 小结

No.1

#include "stdlib.h"
#include "stdio.h"

typedef struct{
int a;
double b;
char c;
}abc;

int main()
{
abc *v;
v = (abc *)malloc(sizeof(abc)*5);
v[0].a = 1;
(*(v+2)).b = 2.0;
(v+3)->c = 'c';
printf("%d,%lf,%c",v[0].a,
(*(v+2)).b,
(v+3)->c);

return 0;

}

No.2

#include "stdlib.h"
#include "stdio.h"

typedef struct{
int a;
double b;
char c;
}abc;

int main()
{
abc **v;

v = (abc **) malloc(sizeof(abc*));
*v = (abc *) malloc(sizeof(abc)*5);
(*v)[0].a = 5;
(*((*v)+2)).b = 2.0;
((*v)+3)->c = 'd';
printf("%d,%lf,%c",((*v)[0]).a,(*((*v)+2)).b,((*v)+3)->c);

return 0;

}