c++实现一个函数，对一个输入的整数，代表时间秒数，将其转换成时间格式字符串，如“01：09：11“，代表1小时，09分，11秒。

#include  #include  #include  // For std::setw and std::setfill  std::string convertSecondsToTimeString(int seconds) {    if (seconds > 86400) { // Check if seconds exceed 24 hours     return "Error: Input exceeds maximum of 24 hours.";   }      int hours = seconds / 3600; // Calculate the hours   seconds %= 3600; // Remaining seconds after removing full hours   int minutes = seconds / 60; // Calculate the minutes   seconds %= 60; // Remaining seconds    // Create an ostringstream to format the output   std::ostringstream timeStream;   // Set the width to 2 for each part and fill with '0' if needed   timeStream << std::setw(2) << std::setfill('0') << hours << ":"     << std::setw(2) << std::setfill('0') << minutes << ":"     << std::setw(2) << std::setfill('0') << seconds;    return timeStream.str(); }  int main() {   int seconds = 2991; // Example input   std::string timeString = convertSecondsToTimeString(seconds);   std::cout << "Time in hh:mm:ss format: " << timeString << std::endl;    int seconds1 = 11126991; // Example input   std::string timeString1 = convertSecondsToTimeString(seconds1);   std::cout << "Time in hh:mm:ss format: " << timeString1 << std::endl;   return 0; } 

输出结果：

Time in hh:mm:ss format: 00:49:51 Time in hh:mm:ss format: Error: Input exceeds maximum of 24 hours.