#include<iostream>
#include<stdio.h>
#include<Windows.h>
//----------------------------------------定義一個自動顯時的類-------------------------
using namespace std;

class timer{      //計時類
    int hour;     //小時
    int minute;   //分鐘
    int second;   //秒
public:
    void set(int h, int m, int s);//設定當前時間
 

    void caculate();              //計時
    void show();                  //顯示時間
};
//-------------------------------------設定時間方法------------------------------------
void timer::set(int h, int m, int s){
    hour = h;
    minute = m;
    second = s;
    if (h > 23 || h < 0)
    {
        cout << "h時間有誤"
 
 << endl;
    }
    if (m > 59 || m < 0)
    {
        cout << "m時間有誤" << endl;
    }
    if (s > 59 || s < 0)
    {
        cout << "s時間有誤" << endl;
    }
}
//--------------------------------------設定計時方法------------------------------------
void timer::caculate(){
        Sleep(1000
 
);
        second++;
    if (second>59){
        minute++;
        second = 0;
    }
    if (minute > 59){
        hour++;
        minute = 0;
    }
    if (hour > 23){
        hour = 0;
    }
}
//----------------------------------------設定顯示時間的類---------------------------------
void timer::show(){
    system("cls");
    cout << hour << ":" << minute << ":" << second << endl;
}

int main1(){
    cout << "請輸入當前時間(時 分 秒)" << endl;
    int a, b, c;
    cin >> a >> b >> c;
    timer t;
    t.set(a, b, c);
    while (1){
        t.caculate();
        t.show();
    }
    return 0;
}