Javascript birthdate, month, day, cascade menu example code _ javascript skills

This article mainly introduces the sample code of the js Date of birth, year, month, and day cascade menu. If you need it, you can refer to it and hope to help everyone. Now, the universal Gregorian calendar (Gregorian calendar) is also undergoing a long-term evolution. Let's take a look at it first. The number of days in each calendar month is fixed: "the first seven days are large, and the last eight days are large ". That is to say, the values of 1, 3, 5, 7, 8, 10, and lunar December (January 1,) are 31 days, the values of 4, 6, 9, and December are 30 days, and the values are only January 1, 3, 5, 6, 9, and 28, 29 days of the leap year.

The Code is as follows:

<% @ Page Language = "C #" AutoEventWireup = "true" CodeBehind = "WebForm1.aspx. cs" Inherits = "WebApplication1.WebForm1" %>