#include <stdio.h>

 #include <stdlib.h>

 int main(int argc, char const *argv[])

 {

     char *pstr;

     int a[]={,,,,,};

     pstr=(char *)malloc(sizeof(char)*);

     printf("%d\n", sizeof(pstr));

     printf("%d\n", sizeof(a));

     return ;　　

 }　　

#include <stdio.h>

struct ts

{

    char c;

    int n;

};

int main(int argc, char const *argv[])

{

    struct ts t;

    printf("sizeof(t.c)=%d\n", sizeof(t.c));

    printf("sizeof(t.n)=%d\n", sizeof(t.n));

    printf("sizeof(t)=%d\n", sizeof(t));

    return ;

}