系统登录首页信息维护
系统登录首页常用案例:
<body class="signin" > <audio src="/imgUpload/music.mp3" autoplay="true" loop="0"></audio> <!--背景音乐 --> <div class="signinpanel" id="signinpanel"> <div class="row" id="row"> <form id="signupForm"> <h4 class="no-margins">登录:</h4> <input type="text" name="username" class="form-control uname" placeholder="用户名" /> <input type="password" name="password" class="form-control " placeholder="密码" /> <button class="btn btn-success btn-block">登录</button> <a href="/reset"><input style="width: 100%" type="button" class="btn btn-success "value="重置密码"></input></a> </form> </div> <div id="message" ><h3 style="color:red">系统有大的更新,请手动清理浏览器缓存,以免影响正常功能使用!</h3><h5>(如果已清理,请忽略!)</h5></div> </div> </body> <script type="text/javascript">
1.显示系统维护,隐藏登录信息 $(function() { document.getElementById("row").style.display="none"; var myDiv = document.getElementById('signinpanel'); //获得dom对象 myDiv.innerHTML = myDiv.innerHTML+'<div style="color:black;font-size:35px;font-weight:bold;">温馨提示:<br/>系统正在维护中,11月15日可以正常使用!'+ '<img style="height: 50px; width: 50px" src="https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1573622849052&di=0e6e11c3c5d5fe856ac359e7a2dc0d94&imgtype=0&src=http%3A%2F%2Fimage.biaobaiju.com%2Fuploads%2F20190401%2F22%2F1554129886-KSrbTfRMVy.jpg"></div>'; return false; });
2.在xxxx日期之前提示用户清理缓存,之后就消失 var div = document.getElementById("message"); window.onload = function () { div.style.display='block'; var nowtime = new Date(); var endtime = new Date('2019/12/16,17:57:00'); var time= parseInt((endtime.getTime() - nowtime.getTime()) / 1000); window.setTimeout("tick()",time); };
3.给固定值5秒,时间到后消失
window.setTimeout("tick()",5000);
function tick(){ div.style.display='none'; }
//style.display="block"为显示,display="none"为隐藏