Question

int main()
{
int number_of_words = 0;
int prevnum = -1;
string previous = "";
string current;
while (cin >> current)
{
    ++number_of_words;
    if (previous == current)
    {
        cout << "word number: " << number_of_words << "\n"
            << "Repeated Word: " << current << "\n";
        previous = current;
    }
    else while (prevnum == number_of_words)
    {
        number_of_words = 0;
        prevnum = 0;
        break;
    }
}
}

在这个应用程序中，我试图在文本中显示重复的单词及其位置编号。当它完成运行输入的语句时，它会保留number_of_words以进行下一个输入。我尝试使用else while条件修复此问题，while循环将中断。

我应该做些什么？ while循环在中断后是否会再次运行，或者我是否需要将其置于另一个while循环中，提示用户是否已准备好输入某些文本？

*这是Ch。 3所以我猜我应该继续前进，但很好奇

Answer 1

试试这个：

#include <sstream>
#include <string>
#include <iostream>
using namespace std;

int main()
{

    int number_of_words;
    string previous;
    string current, input;

    while (true)
    {
        previous = "";
        number_of_words = 0;
        cout << "\nWrite the data\n";
        getline(std::cin, input);
        stringstream ss;
        ss << input; 
        while (ss >> current)
        {
            ++number_of_words;
            if (previous == current)
                cout << "word number: " << number_of_words << "\n"
                    << "Repeated Word: " << current << "\n";
            previous = current;
        }
    }
}

我使用了一个stringstream变量来打破每个输入循环，所以我可以重置计数器。

关于while循环练习的问题

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