#include <iostream>
#include <vector>
using namespace std;
vector<int> v;

bool vec(vector<int>::iterator beg,vector<int>::iterator end,int i)
{
    for(vector<int>::size_type ix=0;beg!=end;beg++)
    {
        cout<<"tips"<<endl;
        if(*beg==i)
        {
        cout<<"got it"<<endl;
        return true;
        }
    }
    cout<<"not exist"<<endl;
    return false;
}

int main()
{
int a,p;
while(cin>>a)
{
         v.push_back(a);   
}
vector<int>::iterator beg=v.begin();
vector<int>::iterator end=v.end();
cout<<"write a ..."<<endl;
vec(beg,end,cin>>p);
return 1;
}

调用vec函数时出错
error C2664: 'vec' : cannot convert parameter 3 from 'class std::basic_istream<char,struct std::char_traits<char> >' to 'int'
谁能解释下为什么不?

人工顶一下