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#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。
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原文地址:http://www.cnblogs.com/iloverain/p/5632985.html