第一周项目-3（扩展）-两人生日差的天数

/**程序的版权和版本声明部分：*Copyright(c)2014，烟台大学计算机学院学生*All rights reserved.*文件名称：*作者：田成琳*完成日期：2014 年 2月 24 日*版本号：v1.0*对任务及求解方法的描述部分：*输入描述: 两个人的生日*问题描述：编一个程序，求出两个人出生相差的天数*程序输出：相差的天数*问题分析：*算法设计：*/#include <iostream>using namespace std;int abs(int);//绝对值函数struct Date{    int year;    int month;    int day;};struct People{    char name[18];    struct Date birthday;};int main(){    People a,b;    int yeara,days1,days2,c[13]= {0,31,28,31,30,31,30,31,31,30,31,30,31},yu,tian;    cout<<"请输入A姓名："<<endl;    cin>>a.name;    cout<<"请输入A生日："<<endl;    cin>>a.birthday.year>>a.birthday.month>>a.birthday.day;    cout<<"请输入B姓名："<<endl;    cin>>b.name;    cout<<"请输入B生日："<<endl;    cin>>b.birthday.year>>b.birthday.month>>b.birthday.day;    if(a.birthday.year<=b.birthday.year)    {        yeara=b.birthday.year-a.birthday.year;        days1=a.birthday.day;        for(int i=1; i<a.birthday.month; i++)        {            days1+=c[i];        }        if(a.birthday.month>2&&(a.birthday.year%4==0&&a.birthday.year%100!=0||a.birthday.year%400==0))        {            days1++;        }        days2=b.birthday.day;        for(int j=1; j<b.birthday.month; j++)        {            days2+=c[j];        }        if(b.birthday.month>2&&(b.birthday.year%4==0&&b.birthday.year%100!=0||b.birthday.year%400==0))        {            days2++;        }        yu=yeara/4;        tian=yeara*365+yu+days2-days1;    }    else    {        yeara=a.birthday.year-b.birthday.year;        days1=a.birthday.day;        for(int i=1; i<a.birthday.month; i++)        {            days1+=c[i];        }        if(a.birthday.month>2&&(a.birthday.year%4==0&&a.birthday.year%100!=0||a.birthday.year%400==0))        {            days1++;        }        days2=b.birthday.day;        for(int j=1; j<b.birthday.month; j++)        {            days2+=c[j];        }        if(b.birthday.month>2&&(b.birthday.year%4==0&&b.birthday.year%100!=0||b.birthday.year%400==0))        {            days2++;        }        yu=yeara/4;        tian=yeara*365+yu+days2-days1;    }    if(tian<0)    {        tian=-tian;    }    cout<<a.name<<"与"<<b.name<<"相差"<<tian<<"天."<<endl;    return 0;}

运行结果：

心得体会：感觉老多写不少代码，但精华就那些，精而少的程序写不出来