访问成员

1. 完整例子

C
1#include <stdio.h>
2 
3struct Point { int x, y; };
4 
5int main(void) {
6 struct Point p;
7 p.x = 3;
8 p.y = 4;
9 struct Point q = {1, 2};
10 printf("(%d,%d) (%d,%d)\n", p.x, p.y, q.x, q.y);
11 return 0;
12}

2. 规则