3_17.cpp

#include <iostream>
#include <vector>
#include <string>

using namespace std;

int main(void)
{
    vector<string> vString;
    string s;
    char cont = 'y';

    cout<<"请输入第一个词: "<<endl;

    while(cin>>s)
    {
        vString.push_back(s);
        cout<<"您要继续吗(y or n)?"<<endl;
        cin>>cont;
        if(cont != 'y' && cont != 'Y')
            break;
        cout<<"请输入下一个词: "<<endl;
    }

    cout<<"转换后的结果是: "<<endl;
    for(auto &mem : vString)
    {
        for(auto &c : mem)
            c = toupper(c);
        cout<< mem << endl;
    }

    return 0;
}