C++编程基础二 12-函数与结构体

 1 // C++函数和类 12-函数与结构体.cpp: 定义控制台应用程序的入口点。
 2 //
 3 
 4 #include "stdafx.h"
 5 #include <iostream>
 6 #include <string>
 7 #include <climits>
 8 #include <math.h>
 9 #include <array>
10 using namespace std;
11  
12 struct WorkTime
13 {
14     int hours;
15     int mins;
16 };
17 WorkTime sum(WorkTime t1, WorkTime t2);
18 const int Mins_per_hour = 60;
19 int main()
20 {
21     WorkTime morning = { 2,40 };
22     WorkTime afternoon = { 6,40 };
23     WorkTime day = sum(morning , afternoon);
24     cout << "一天一共工作了：" << day.hours << "小时，" << day.mins << "分钟。" << endl;
25     return 0;
26 }
27 
28 //结构体在函数中可以和某个类型一样使用，作为参数传递或者作为返回值返回
29 //结构体较大时，为了避免赋值副本，可以使用指针或引用类型
30 WorkTime sum(WorkTime t1, WorkTime t2)
31 {
32     WorkTime total;
33     total.mins = (t1.mins + t2.mins)%Mins_per_hour;
34     total.hours = t1.hours + t2.hours + (t1.mins + t2.mins) / Mins_per_hour;
35     return total;
36 }