计算日子差。自由年月日。含闰年判断

#include

#include

using namespace std;

//function

//是否为闰年

long int judgement1(int);

//是否为大月

long int judgement2(int,bool);

//计算日子

int judgement3(int);

//闰年

bool lunar(int);

//计算

void display(long int);

#define YEAR 1993

#define MONTH 6

#define DAY 9

int main()

{

int year,month,day;

long int count[3];

bool t;

long int total;

cout<<"Count the date from"<<YEAR<<'/'<<MONTH<<'/'<<DAY<<"to the date you want."<<endl;

cout<<"【EOF】to quit."<<endl;

while(cin.get()!=EOF){

cout<<"Year: "<<endl;

cin>>year;

count[0]=judgement1(year);

t=lunar(year);

cout<<"Month: "<<endl;

cin>>month;

count[1]=judgement2(month,t);

cout<<"Day: "<<endl;

cin>>day;

count[2]=day;

//多余的日子

total=count[0]+count[1]+count[2]-judgement2(MONTH,lunar(YEAR))-(DAY-1);

cout<<"Total: "<<total<<endl;

cout<<"计算这一天是在打渔还是筛网："<<endl;

display(total);

cin.clear();

cin.get();

}

}

//计算年份

long int judgement1(int a){

a=a-YEAR;

long int ye=0;

for(int i=0;i

if(lunar(YEAR+i))

ye=ye+366;

else

ye=ye+365;

return ye;

}

//判断闰年

bool lunar(int yea){

if( yea%4 == 0){

if( yea0 == 0){

if( yea@0 ==0)

return true;

else

return false;

}

else

return true;

}

else

return false;

}

//计算月份

long int judgement2(int a,bool t){

int day=0;

int b=31,s=30;

switch(a){

case 12:

day=day+s;

case 11:

day=day+b;

case 10:

day=day+s;

case 9:

day=day+b;

case 8:

day+=b;

case 7:

day+=s;

case 6:

day+=b;

case 5:

day+=s;

case 4:

day+=b;

case 3:

if(t)

day+=29;

else

day+=28;

case 2:

day+=b;

case 1:

day+=0;break;

default:

cout<<"WRONG.";break;

}

return day;

}

//展示晒网打渔

void display(long int a){

a=a%5;

switch(a){

case 0:

case 4:

cout<<"晒网"<<endl;break;

case 2:

case 3:

case 1:

cout<<"打渔"<<endl;break;

}return;

}