#include <iostream>
#include<vector>
#include<string.h>
class Person {
public:
string mname;
int mage;
Person(string a, int b) {
mname = a;
mage = b;
}
};
void test01() {
vector<Person> v;
Person p1("tom", 18);
Person p2("jack", 19);
Person p3("tane", 17);
Person p4("reo", 18);
Person p5("jim", 20);
v.push_back(p1);
v.push_back(p2);
v.push_back(p3);
v.push_back(p4);
v.push_back(p5);
for (vector<Person>::iterator it = v.begin(); it != v.end(); it++)
cout << "name:" << (*it).mname << " age:" << (*it).mage << endl;
}
int main()
{
test01();
std::cout << "Hello World!\n";
return 0;
}
一开始觉得莫名奇妙,之前的都是对的,怎么这个不行,然后发现没写
using namespace std;
加上就不报错了,但是不知道为什么,有人能解答一下吗?