#include<stdio.h>
#include<algorithm>
#include<vector>
#include<iostream>
using namespace std;
typedef struct rect
{
int id;
int length;
int width;
//对于向量元素是结构体的,可在结构体内部定义比较函数,下面按照id,length,width升序排序。
bool operator< (const rect &a) const
{
if(id!=a.id)
return id<a.id;
else
{
if(length!=a.length)
return length<a.length;
else
return width<a.width;
}
}
}Rect;
int main() {
vector<Rect> vec;
Rect rect;
rect.id = 1;
rect.length = 2;
rect.width = 3;
vec.push_back(rect);
vector<Rect>::iterator it = vec.begin();
cout << (*it).id << ' ' << (*it).length << ' ' << (*it).width << endl;
return 0;
}
1 2 3