sizeof（）和strlen（）例子

#include "stdio.h"

#include <string.h>

int main()

{

char a[10]="12345";

char *p = "12345";

char b[20];

printf("strlen(b)%d\n",strlen(b));

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

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

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

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

printf("strlen(p)%d\n",strlen(p));

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

printf("sizeof(*p)%d\n",sizeof(*p));

return 0;

}