从txt文件中随机选择一个单词，并将其标记为在C++中选中

#include <fstream>
#include <iostream>
#include <string>

int main() {
    std::ifstream file("filename.txt");
    if (!file.is_open()) {
        std::cout << "无法打开文件" << std::endl;
        return 1;
    }
    // 其他操作...
}

std::string line;
while (getline(file, line)) {
    // 处理每行内容...
}

#include <sstream>
#include <vector>

std::vector<std::string> words;
std::string word;
std::stringstream ss(line);
while (ss >> word) {
    words.push_back(word);
}

#include <cstdlib>

int randomIndex = rand() % words.size();
std::string selectedWord = words[randomIndex];

selectedWord = "<" + selectedWord + ">";
std::cout << selectedWord << std::endl;

#include <fstream>
#include <iostream>
#include <sstream>
#include <vector>

int main() {
    std::ifstream file("filename.txt");
    if (!file.is_open()) {
        std::cout << "无法打开文件" << std::endl;
        return 1;
    }

    std::string line;
    std::vector<std::string> words;
    while (getline(file, line)) {
        std::string word;
        std::stringstream ss(line);
        while (ss >> word) {
            words.push_back(word);
        }
    }

    if (words.empty()) {
        std::cout << "文件中没有单词" << std::endl;
        return 1;
    }

    int randomIndex = rand() % words.size();
    std::string selectedWord = words[randomIndex];
    selectedWord = "<" + selectedWord + ">";
    std::cout << selectedWord << std::endl;

    return 0;
}