Introduction - If you have any usage issues, please Google them yourself
C language design flow 1 calendar, enter the month and year you want to find where you want to check the input parameters, in order to ensure that the input parameters are correct, it will not affect the follow-up procedure. 2, enter the month and year of processing and calculation determines enter the year is a leap year, if it is a leap year, the date is set February 29 days, otherwise, set to 28 days. 3. Calculate the input January 1 New Year' s Day of that year the number of days, and then calculate the 1st day of the week. 4. Finally, print out a calendar month.