getline c ++不能用Enter键完成

Question

我是C ++的新手，我试图创建一个程序来读取文本中输入的单词数。我使用getline来获取文本，但是它不会以回车键停止，因此我的程序无法继续执行，并且始终停留在输入单词上。我对此并不陌生，我有点迷失了，任何批评都值得赞赏。抱歉，我也是该论坛的新手。谢谢

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

using namespace std;

int main()
{

    int counter = 1;
    string words;
    vector<string> holdingstrings;

    cout << "Enter no more then 100 words" << endl;

    while (getline(cin, words))
        holdingstrings.push_back(words);

    reverse(holdingstrings.begin(), holdingstrings.end());

    if (holdingstrings.size() == 0)
        cout << "No words have been entered" << endl;

    words = holdingstrings[0];

    if (holdingstrings.size() > 100)
        cout << "You have entered more then 100 words, enter less then 100 words" << endl;

    for (int i = 1; i < holdingstrings.size(); i++) {
        if (words[i] == ' ')
            counter++;
    }
    cout << "There is " << words << " words in the text" << endl;

    return 0;
}