第一题:
int main() {
double salarys[5] = { 1500, 2000.43, 1202.78, 8000.32, 5000 };
int i = 0;
for (i = 0; i < 5; i++) {
printf("%6.2lf\n", salarys[i]);
}
int *p;
p = &salarys;
int *m;
m = &salarys[0];
printf("%x\n", p);
printf("%x\n", m);
int *n;
n = &salarys[4];
printf("%x\n", n);
printf("%x\n", &salarys[4]);
double *head;
head = &salarys;
double *tail = &salarys[4];
printf("%x\n", head);
printf("%x\n", tail);
printf("%6.2lf\n", *head);
printf("%6.2lf\n", *tail);
printf("%x\n", tail - head);
*head = salarys[0] - 50;
printf("%6.2lf\n", *head);
printf("%6.2lf\n", *head + 6550.32);
head = &salarys;
for (i = 0; i < 5; i++) {
printf("%6.2lf\n", *(head + i));
int main() {
double salarys[5] = { 1500, 2000.43, 1202.78, 8000.32, 5000 };
int i = 0;
for (i = 0; i < 5; i++) {
printf("%6.2lf\n", salarys[i]);
}
int *p;
p = &salarys;
int *m;
m = &salarys[0];
printf("%x\n", p);
printf("%x\n", m);
int *n;
n = &salarys[4];
printf("%x\n", n);
printf("%x\n", &salarys[4]);
double *head;
head = &salarys;
double *tail = &salarys[4];
printf("%x\n", head);
printf("%x\n", tail);
printf("%6.2lf\n", *head);
printf("%6.2lf\n", *tail);
printf("%x\n", tail - head);
*head = salarys[0] - 50;
printf("%6.2lf\n", *head);
printf("%6.2lf\n", *head + 6550.32);
head = &salarys;
for (i = 0; i < 5; i++) {
printf("%6.2lf\n", *(head + i));