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C++實現的一個打印日歷程序

ace c++ chm 分享 std mon gets int start setw

C++實現的一個打印日歷程序

說明:總共有三個文件 1、month.h為定義函數的頭文件 2、month.cpp為函數的實現代碼 3、mainprog.cpp為主函數的實現代碼

month.h

void printMonth(int year,int month);
void printMonthTitle(int year,int month);
void printMonthBody(int year,int month);
int getStartDay(int year,int month);
int getTotalNumberOfDays(int year,int month);
int getNumberOfDaysInMonth(int year,int month);
bool isLeapYear(int year);

month.cpp

#include<iostream>
#include<iomanip>
#include "month.h"
using namespace std;
//打印日歷頭部 
void printMonthTitle(int year,int month){
    char chMonth[12][7] = {"一月","二月","三月","四月","五月","六月","七月",
    "八月","九月","十月","十一月","十二月"};
    cout<<endl;
    cout<<setw(12)<<year<<"年"<<"    ";
    cout<<chMonth[month-1]<<endl;
    cout<<"------------------------------"<<endl;
    cout<<"  Sun Mon Tue Wed Thu Fri Sat"<<endl; 
}

void printMonthBody(int year,int month){
    int startDay = getStartDay(year,month);
    int numberOfDaysInMonth = getNumberOfDaysInMonth(year,month);
    int i = 0;
    for(i=0;i<startDay;i++){
        cout<<"    ";
    }
    for(i=1;i<=numberOfDaysInMonth;i++){
        cout<<setw(4)<<i;
        if((i+startDay)%7==0){
            cout<<endl;
        }
    }
    cout<<endl;
    cout<<"------------------------------"<<endl;
}

int getStartDay(int year,int month){
    int startDay1800 = 3;
    int totalNumberOfDays = getTotalNumberOfDays(year,month);
    return (totalNumberOfDays+startDay1800)%7;
}

int getTotalNumberOfDays(int year,int month){
    int total = 0;
    for(int i=1800;i<year;i++){
        if(isLeapYear(i)){
            total=total+366;
        }else{
            total=total+365;        
        }
    }
    for(int i=1;i<month;i++){
        total=total+getNumberOfDaysInMonth(year,i);
    }
    return total;
}

int getNumberOfDaysInMonth(int year,int month){
    if(month==1||month==3||month==5||month==7||month==8||month==10||month==12){
        return 31;
    }
    if(month==4||month==6||month==9||month==11){
        return 30;
    }
    if(month==2){
        return isLeapYear(year)?29:28;
    }
    return 0;   
}

bool isLeapYear(int year){
    return year%400==0||(year%4==0&&year%100!=0);
}

mainprog.cpp

#include<iostream>
#include<iomanip>
#include "month.cpp"
#include "month.h"
using namespace std;
void main(){
    cout<<"請輸入年份(如2018):";
    int year;
    cin>>year;
    cout<<"請輸入月份(1-12):";
    int month;
    cin>>month;
    printMonth(year,month);
}

void printMonth(int year,int month){
    printMonthTitle(year,month);
    printMonthBody(year,month);
}

結果顯示:
技術分享圖片

C++實現的一個打印日歷程序