📄 fields_appear_disappear.html
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <title>The JavaScript Anthology: Making form fields appear or disappear, based on the value of other fields</title> <script type="text/javascript" src="scripts/fields_appear_disappear.js"></script> <link rel="stylesheet" type="text/css" href="css/fields_appear_disappear.css" /> </head> <body> <h1> Making form fields appear or disappear, based on the value of other fields </h1> <form action=""> <fieldset> <legend>Characters</legend> <p> Have you read The Hitch Hiker's Guide to the Galaxy? </p> <input type="radio" id="readYes" name="read" /> <label for="readYes"> Yes </label> <input type="radio" name="read" id="readNo" /> <label for="readNo"> No </label> <div id="optional"> <label for="character"> Who was your favorite character? </label> <select id="character" name="character"> <option value="A">Marvin</option> <option value="B">Trillian</option> <option value="C">Ford</option> </select> </div> </fieldset> </form> </body></html>⌨️ 快捷键说明
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