本篇内容介绍了“JS怎么实现定时自动消失的弹出窗口”的有关知识，在实际案例的操作过程中，不少人都会遇到这样的困境，接下来就让小编带领大家学习一下如何处理这些情况吧！希望大家仔细阅读，能够学有所成！
一、Demo.html
<!DOCTYPE html><html> <head> <meta charset="UTF-8"> <title>js弹框3秒后自动消失</title> <link rel="stylesheet" type="text/css" href="./js/bootstrap/css/bootstrap.css" rel="external nofollow" /> <link rel="stylesheet" type="text/css" href="./css/demo.css" rel="external nofollow" /> </head> <body> <button onclick="showModal()">点击弹出模态框</button> <div class='modal my-modal-alert' id='my-modal-alert'> <div class='modal-dialog boxBodySmall'> <div class='modal-content'> <div class='modal-header boxHeader'> <button type='button' class='close boxClose' data-dismiss='modal'> <span aria-hidden='true'>×</span><span class='sr-only'>Close</span> </button> <h5 class='modal-title boxTitle' id='modal-title'>模态框</h5> </div> <div class='modal-body' id='modal-body-alert'> <div id='modal_message'>js弹框自动消失案例</div> <span id='num'></span> </div> <div class='modal-footer boxFooter' id='modal-footer'> <button type='button' class='btn btn-default boxButton' data-dismiss='modal'>关闭</button> <button type='button' class='btn btn-primary boxButton'>保存</button> </div> </div> </div> </div> <script src="./js/jquery/jquery-1.11.2.js"></script> <script src="./js/bootstrap/js/bootstrap.min.js"></script> <script src="./js/jquery-ui/jquery-ui.min.js"></script> <script> var clearFlag = 0; var count = 3;//设置3秒后自动消失 var showModal = function(){ $("#my-modal-alert").toggle();//显示模态框 $("#my-modal-alert").draggable({//设置模态框可拖动（需要引入jquery-ui.min.js） handle: ".modal-header" }); clearFlag = self.setInterval("autoClose()",1000);//每过一秒调用一次autoClose方法 } var autoClose = function(){ if(count>0){ $("#num").html(count + "秒后窗口将自动关闭"); count--; }else if(count<=0){ window.clearInterval(clearFlag); $("#num").html(""); $("#my-modal-alert").fadeOut("slow"); count = 3; $("#my-modal-alert").toggle(); } } </script> </body></html>注意：1、bootstrap依赖于jquery,引入bootstrap前需要引入jquery
二、Demo.css
.my-modal-alert .boxBodyBig{ width:496px; height: 418px;} .my-modal-alert .boxBodySmall{ width:412px; height: 418px;}.my-modal-alert .boxHeader{ background-color: #f6f6f6; border-bottom: #e5e5e5 1px; height: 48px;} .my-modal-alert .boxTitle{ background-color: #f6f6f6; color:#333333; font-family:"SimHei"; font-size: 16px;}.my-modal-alert .boxClose{ }.my-modal-alert .boxClose:hover{ color: #ff7800;}.my-modal-alert .boxFooter{ margin: auto; text-align: center; padding:24px 15px 24px 15px; margin:0px 15px 0px 15px;}.my-modal-alert .boxButton{ font-family:"SimHei"; background-color:#ff7800; width: 70px; height: 30px; color:white; text-align:center; line-height: 1;}.my-modal-alert .boxLabel{ width:80px; font-size: 14px; font-family:'SimHei'; color: #999999; }.my-modal-alert .boxInput{ width:176px; font-size: 14px; color: #333333;}.my-modal-alert .boxText{ color:#ff7800; font-family:'SimHei'; font-size: 12px;}.my-modal-alert .boxTextarea{ font-size: 12px;}.my-modal-alert .modal-body{ width: 400px; height: 100px; text-align: center;}.my-modal-alert .modal_message{ margin-top: 20px; }“JS怎么实现定时自动消失的弹出窗口”的内容就介绍到这里了，感谢大家的阅读。如果想了解更多行业相关的知识可以关注编程网网站，小编将为大家输出更多高质量的实用文章！
