#include <stdio.h>
#include <stdlib.h>
int main() {
struct student {
char *name;
int score;
};
struct student st = {"Brian", 97};
struct student *ptr = &st;
printf("ptr->name = %s\n", ptr->name);
printf("*ptr->name = %c\n", *ptr->name);
printf("*ptr->name++ = %c\n", *ptr->name++);//获取首地址字符后,将name指针友谊一位,指向r
printf("*ptr->name = %c\n", *ptr->name);
printf("ptr->score = %d\n", ptr->score);
printf("ptr->score++ = %d\n", ptr->score++);
printf("ptr->score = %d\n", ptr->score);
return 0;
}
1. ptr->name,等同于打印(*p).name。
2. *ptr->name,因为->的优先级高于*,所以相当于: *(ptr->name)。即指针首地址的那个字符。
3. *ptr->name++,由于*和++的优先级相同,而且结合性是由右至左,所以相当于: *((ptr->name)++),即获取首地址字符后,将name指针右移一位。(当前打印还是首地址的值)
4. *ptr->name,此处为验证上一步的指针位置。