Write a program that calculates the number of days between the start time and the end time entered b

1 all"Please enter the start year");

int x=;

Please enter the year of termination");

int y=;

int z=(y-x)*365;

Leap years in ordinary years are not considered, and it is unified here for 365 days, and if you want to achieve it, you will make changes ......

datetime dt1 = start time.

datetime dt2 = end time.

timespan ts = dt1 - dt2;

int sub = ;sub is the number of days between two days.

Passed in VS2005.

#include

Determine whether it is a run-year*

int leapyear(int iyear)

return iyear%4 ? true : false;

Get the number of days in the month*

int leapmonth(int imonth,bool year)

if(imonth == 2)

if(year)

return 29;

else return 28;

else if(imonth < 8&&imonth != 2)

if(imonth%2)

return 31;

else return 30;

else if(imonth%2)

return 30;

else return 31;

void main()

int preyear,premonth,preday;

int sufyear,surmonth,sufday;

Enter the start and end times*

printf("start year:");

printf("end year:");

int idaysofyear = 0;

int idaysofmonth = 0;

for(int i = preyear; i < sufyear; i++)

idaysofyear += leapyear(i)?366:365;

int idaysofstartyear = 0;

int idaysofendyear = 0;

for(int a = 1; a < premonth; a++)

idaysofstartyear += leapmonth(a,leapyear(preyear));

idaysofstartyear += preday;

for(int b = 1; b < surmonth; b++)

idaysofendyear += leapmonth(b,leapyear(sufyear));

idaysofendyear += sufday;

int totalofdays = idaysofyear + idaysofendyear - idaysofstartyear;

output *printf("total of days: %d",idaysofstartyear);

*The program is used to calculate the number of days separated by two days in the same year (common year) * include

using namespace std;

int main()

int mon1,day1,mon2,day2;

cout<<"Please enter the start date (month, day)."<>mon1>>day1;

cout<<"Enter the end date (month, day)."<>mon2>>day2;

int a(0),b,c;

int mon[12]=;

for(;mon1b=a+day2-day1;

cout<<"The number of days apart is :"

Local variables mask global variables with the same name So:

Call fun first to output the value of local variable a in the function 5, and then output the value of local variable b in the main function 5

Exit the fun function The local variable a in the fun function ends at the end of the life period and then prinft prints the value of a is the value of the global variable a, and b is also the local variable of the main function, so the output is 5,5,0,5

Use an array of 2 rows and 12 columns, record the number of days in each month in a leap year or not, and then the rest is simple.