案例描述:将Person自定义数据类型进行排序,Person中属性有姓名、年龄、身高
排序规则:按照年龄进行升序,如果年龄相同按照身高进行降序
#include <iostream>
using namespace std;
#include <string>
#include <list>
class Person
{
public:
string m_Name;
int m_Age;
int m_Height;
Person(string name, int age, int height)
{
this->m_Name = name;
this->m_Age = age;
this->m_Height = height;
}
};
//指定排序规则
bool comparePerson(Person & p1,Person & p2){
//按照年龄升序
if(p1.m_Age==p2.m_Age){
return p1.m_Height>p2.m_Height;
}else{
return p1.m_Age<p2.m_Age;
}
}
void test()
{
list<Person> L;
//准备数据
Person p1("刘备", 35, 175);
Person p2("曹操", 45, 180);
Person p3("孙权", 40, 170);
Person p4("赵云", 25, 190);
Person p5("张飞", 35, 160);
Person p6("关羽", 35, 200);
L.push_back(p1);
L.push_back(p2);
L.push_back(p3);
L.push_back(p4);
L.push_back(p5);
L.push_back(p6);
cout<<"排序前"<<endl;
for(list<Person>::iterator it=L.begin();it!=L.end();it++){
cout<<"姓名:"<<it->m_Name<<"年龄:"<<it->m_Age<<"身高:"<<it->m_Height<<endl;
}
//排序
cout<<"排序后"<<endl;
L.sort(comparePerson);
for(list<Person>::iterator it=L.begin();it!=L.end();it++){
cout<<"姓名:"<<it->m_Name<<"年龄:"<<it->m_Age<<"身高:"<<it->m_Height<<endl;
}
}
int main()
{
test();
return 0;
}