c++之vector

#include <iostream>
#include <stdio.h>
#include <string>
#include <vector>
using namespace std;

void printList(vector<string> list)
{
for(int i=0;i<list.size();i++)
{
cout<<list.at(i)<<" ";

}
cout<<endl;
}
void changeList(vector<string> list)
{
for(int i=0;i<list.size();i++)
{
list[i]="hehe";
}
printList(list);
}
void changeList(vector<string> *list)
{
for(int i=0;i<list->size();i++)
{
list->assign(i,"hehe");
}
printList(*list);
}

void changeList2(vector<string> &list)
{
for(int i=0;i<list.size();i++)
{
list.assign(i,"hehe");
}
printList(list);
}
void changeList3(vector<string> inlist)
{
vector<string> list;
for(int i=0;i<15;i++)
{
list.push_back("fuck");
}
inlist=list;
printList(inlist);

}

int main(int argc,char* argv[])
{

vector<string> list;
list.push_back("test1");
for(int i=0;i<15;i++)
{
list.push_back("test");
}
list.push_back("test16");
printList(list);
changeList3(list);
printList(list);

return 0;
}