Bootstrap中的可折叠类用于显示可折叠内容。
您可以尝试运行以下代码以在类中实现可折叠 ：
<!DOCTYPE html> <html> <head> <title>Bootstrap Example</title> <link href = "/bootstrap/css/bootstrap.min.css" rel = "stylesheet"> <script src = "/scripts/jquery.min.js"></script> <script src = "/bootstrap/js/bootstrap.min.js"></script> </head> <body> <div class = "container"> <h2>Quiz</h2> <p>Click below to toggle the button content.</p> <button type = "button" class = "btn btn-info" data-toggle = "collapse" data-target = "#test">More Quizzes</button> <div id = "test" class = "collapse in"> We have quizzes on Java, PHP, Ruby, Quantitative Aptitude, ASP.net, etc. </div> </div> </body> </html>