结构体学习

#include <cstdio>
#include <cstring>
#include <algorithm>
using namespace std;

struct node {
    int x, y;
    node () {};
    node (int x, int y) :
       x(x), y(y) {};
};

int main() {
    node a;
    node b(1, 2);
    node c = node(1, 2);
    printf("a = %d %d\n", a.x, a.y);
    printf("b = %d %d\n", b.x, b.y);
    printf("c = %d %d\n", c.x, c.y);
    return 0;
}

#include <cstdio>
#include <cstring>
#include <algorithm>
using namespace std;

struct node {
    int x, y;
    //node () {};
    node (int x = 0, int y = 0) :
       x(x), y(y) {};
};

int main() {
    node a;
    node b(1, 2);
    node c = node(1, 2);
    printf("a = %d %d\n", a.x, a.y);
    printf("b = %d %d\n", b.x, b.y);
    printf("c = %d %d\n", c.x, c.y);
    return 0;
}

留个底， 防止忘记