在C++问题中将时间字符串转换为秒

#include <iostream>
#include <string>

int convertTimeStringToSeconds(const std::string& timeString) {
    // 拆分时间字符串
    std::string hourString = timeString.substr(0, 2);
    std::string minuteString = timeString.substr(3, 2);
    std::string secondString = timeString.substr(6, 2);

    // 转换为整数类型
    int hour = std::stoi(hourString);
    int minute = std::stoi(minuteString);
    int second = std::stoi(secondString);

    // 转换为秒的总数
    int totalSeconds = hour * 3600 + minute * 60 + second;

    return totalSeconds;
}

int main() {
    std::string timeString = "12:34:56";
    int seconds = convertTimeStringToSeconds(timeString);
    std::cout << "Total seconds: " << seconds << std::endl;

    return 0;
}