定义istream只要cin就会存取数据不管input!=what

 

//定义istream只要cin就会存取数据不管input!=999
#include <iostream>
#include <vector>
#include <iterator>
using namespace std;
int main(){
    int input;
    istream_iterator<int> in(cin),eof;
    vector<int> contain(in,eof);
    while(cin >>input&&input!=999){
    }
    for(vector<int>::iterator iter=contain.begin();iter!=contain.end

();++iter)
        cout<<*iter <<" ";
}