#include <iostream>
using namespace std;
struct point {
int x;
int y;
};
int main( ) {
struct EX {
int a;
int b;
point c;
} e;
e.a = 1;
e.b = 2;
e.c.x = e.a + e.b;
e.c.y = e.a * e.b;
cout << e.c.x << ',' << e.c.y << endl;
return 0;
} 输出：1
