计算相差几天

来源：互联网发布：java中list的遍历编辑：程序博客网时间：2024/06/02 08:00

#include<iostream>#include<cmath>using namespace std;struct Date{    int year;    int month;    int day;} date1;int main(){    Date date;    Date date1;      int days3=0,days4=0,days5;        int l,m;    cout<<"input year,month,day:";    cin>>date.year>>date.month>>date.day;    cin>>date1.year>>date1.month>>date1.day;    if(abs(date.year-date1.year)>0)    {        int days=0;        int i;        if(date.month==1)            days=days+date.day;        else            for(i=1; i<date.month; i++)            {                if(i==1||i==3||i==5||i==7||i==8||i==10||i==12)                    days=days+31;                else if(i==4||i==6||i==9||i==11)                    days=days+30;                else if(i==2)                    days=days+29;            }        days=days+date.day;        if(date.month>=3&&(date.year%4!=0||date.year%400!=0))            days=365-days+1;        else            days=365-days;        cout<<date.month<<"月"<<date.day<<"日是"<<date.year<<"年的第"<<days<<"天."<<endl;        int days1=0;        int k;        if(date1.month==1)            days1=days1+date.day;        else            for(k=1; k<date1.month; k++)            {                if(k==1||k==3||k==5||k==7||k==8||k==10||k==12)                    days1=days1+31;                else if(k==4||k==6||k==9||k==11)                    days1=days1+30;                else if(k==2)                    days1=days1+29;            }        days1=days1+date.day;        if(date.month>=3&&(date.year%4!=0||date.year%400!=0))            days1=days1-1;        int j,z=0,days2=0;        days2=days2+(abs(date.year-date1.year)-1)*365;        for(j=0; j<abs(date.year-date1.year); j++)        {            if((date.year+1+j)%4==0||date.year%400==0)                z++;        }        days2=days+days1+z+days2;        cout<<"相差"<<days2<<"天"<<endl;    }    else        {            if(date.month==1)            days3=days3+date.day;        else            for(l=1; l<date.month; l++)            {                if(l==1||l==3||l==5||l==7||l==8||l==10||l==12)                    days3=days3+31;                else if(l==4||l==6||l==9||l==11)                    days3=days3+30;                else if(l==2)                    days3=days3+29;            }        days3=days3+date.day;        if(date.month>=3&&(date.year%4!=0||date.year%400!=0))        days3=days3-1;        if(date1.month==1)            days4=days4+date1.day;        else            for(m=1; m<date1.month; m++)            {                if(m==1||m==3||m==5||m==7||m==8||m==10||m==12)                    days4=days4+31;                else if(m==4||m==6||m==9||m==11)                    days4=days4+30;                else if(m==2)                    days4=days4+29;            }        days4=days4+date1.day;        if(date1.month>=3&&(date1.year%4!=0||date1.year%400!=0))        days4=days4-1;        days5=abs(days4-days3);        cout<<"相差"<<days5<<"天";}        return 0;}

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