使用as2計算特定日期的天數

Question

如何使用as2計算給定日期和今天之間的天數？

Answer 1

通過這個代碼

// set up a date variable for Christmas 2006 
// (n.b. Months are in the range 0-11) 
var_Christmas = new Date(2006,11,25) 
// set up a variable for todays date 
var_Today = new Date(); 
// calculate the difference in milliseconds between the dates 
difference_milliseconds = var_Christmas - var_Today; 
trace (difference_milliseconds); 
// convert millisecond difference into days 
// (n.b. 1000 ms per second, 60000 ms per minute, 3600000 ms per hour, 86400000 ms per day) 
difference_days = Math.floor(difference_milliseconds/86400000); 
trace("There are " + difference_days + " days before Christmas");