第6课 (用户定义的有返回值的函数)
#include <iostream> int DayTosecond(int day); int main() { using namespace std; int day; cout << "请输入天数" << endl; cin >> day; cout << day << "天有" << DayTosecond(day) << "秒" << endl; return 0; } /// <summary> /// 天换算成秒 /// </summary> /// <param name="day">天</param> /// <returns></returns> int DayTosecond(int day)//带返回值函数 { return day * 24 * 60 * 60;//天*小时*分钟*秒 }