c++ vector

#include<vector>
vector<double> salary(10);
salary[0]=100.01;

for(i = 0; i < salary.size(); i++)
   do something with salary[i];

可以象stack,
salary.push_back(...);
salary.pop_back();

vector as parameter    double average(vector<double> v);
vector as return value  vector<double>  function1(.....);