Introduction - If you have any usage issues, please Google them yourself
The program has a calendar function, the main function is as follows: ⒈ apply to the display of all dates from January 1, AD year AD years. Two arbitrary input on the screen a year, month, will show a two-dimensional array to display all the days of the month as well as the daily value of the corresponding week ⒊ year, month, day, any input on the screen will show This day is the day of the week.