The example in this article describes the login floating box effect code implemented by jQuery. Share it with everyone for your reference. The details are as follows:
This is a jQuery login floating box code. After clicking the login button, you will see a floating layer pop up with a close button in the upper right corner. This floating layer does not support dragging. It is a kind of floating box that is often seen on the Internet. layer format.
The screenshot of the running effect is as follows:
The online demo address is as follows:
http://demo.jb51.net/js/2015/jquery-float-login-dlg-style-demo/
The specific code is as follows:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> <title>jQuery登录浮动框代码</title> <style type="text/css"> body{ margin:0px; padding:0px; background-color:#f0f0f0; font-family:Arial, Helvetica, sans-serif;} a{ text-decoration:none;} .top{ width:760px; height:30px; border-bottom:1px solid #dbdbdb; margin:0px auto;} .logo{ width:300px; height:30px; line-height:30px; float:left; font-size:14px; margin:0px 5px;} .logo a{ color:#666666;} .denglu{ height:30px; line-height:30px; float:right; font-size:14px;} .denglu a{ color:#666666; margin:0px 10px;} .clear{ display:block; height:0px; line-height:0px; font-size:0px; clear:both;} .fd{ width:100%; height:auto; position:absolute; top:150px; left:0px; z-index:1; display:none;} .fd_box{ width:320px; height:auto; margin:0px auto; position:relative; } .tm_box{ width:300px; height:200px; padding:10px; background-color:#FFFFFF; -webkit-border-radius:5px;-moz-border-radius:5px;border-radius:5px; FILTER: alpha(opacity=50); opacity: 0.5; -moz-opacity: 0.5; position:absolute; top:0px; left:0px; z-index:2;} .denglu_box{ width:280px; height:180px; padding:10px; background-color:#FFFFFF; -webkit-border-radius:5px;-moz-border-radius:5px;border-radius:5px; position:absolute; top:10px; left:10px; z-index:3; font-family:"宋体";} .denglu_box h1{ width:270px; height:30px; line-height:30px; font-size:14px; margin:0px; padding:0px 5px; font-weight:100; color:#666666; border-bottom:1px solid #009999;} .denglu_box span{ color:#666666; display:block; margin:10px 0px; padding:0px 5px;} .guanbi{ width:14px; height:13px; background-image:url(images/close.gif); background-repeat:no-repeat; position:absolute; top:25px; right:25px; z-index:4; cursor: pointer;} .box{ width:760px; height:auto; margin:0px auto; border-top:1px solid #f9f9f9;} .box img{ margin:50px auto; display:block; border:0px;} </style> <script type="text/javascript" src="jquery-1.6.2.min.js"></script> <script type="text/javascript"> $(document).ready(function(){ $("#mj").click( function(){ $(".fd").show(); return false; }); $(".guanbi").click( function(){ $(".fd").hide(); }); }) </script> </head> <body> <div class="top"> <div class="logo"><a href="#">MJBlog</a></div> <div class="denglu"><a href="denglu.html" id="mj">登录</a><a href="#">注册</a></div> <div class="clear"></div> </div> <div class="box"><a href="#"><img src="/static/imghwm/default1.png" data-src="images/wall3.jpg" class="lazy" / alt="Login floating box effect code implemented by jQuery_jquery" ></a></div> <div class="fd"> <div class="fd_box"> <div class="tm_box"></div> <div class="denglu_box"> <h1 id="用户登录">用户登录</h1> <span>用户名:<input name="" type="text" /></span> <span>密 码:<input name="" type="text" /></span> </div> <div class="guanbi"></div> </div> </div> </body> </html>
I hope this article will be helpful to everyone’s jQuery programming.

实现方法:1、用“$("img").delay(毫秒数).fadeOut()”语句,delay()设置延迟秒数;2、用“setTimeout(function(){ $("img").hide(); },毫秒值);”语句,通过定时器来延迟。

区别:1、axios是一个异步请求框架,用于封装底层的XMLHttpRequest,而jquery是一个JavaScript库,只是顺便封装了dom操作;2、axios是基于承诺对象的,可以用承诺对象中的方法,而jquery不基于承诺对象。

修改方法:1、用css()设置新样式,语法“$(元素).css("min-height","新值")”;2、用attr(),通过设置style属性来添加新样式,语法“$(元素).attr("style","min-height:新值")”。

增加元素的方法:1、用append(),语法“$("body").append(新元素)”,可向body内部的末尾处增加元素;2、用prepend(),语法“$("body").prepend(新元素)”,可向body内部的开始处增加元素。

删除方法:1、用empty(),语法“$("div").empty();”,可删除所有子节点和内容;2、用children()和remove(),语法“$("div").children().remove();”,只删除子元素,不删除内容。

在jquery中,apply()方法用于改变this指向,使用另一个对象替换当前对象,是应用某一对象的一个方法,语法为“apply(thisobj,[argarray])”;参数argarray表示的是以数组的形式进行传递。

去掉方法:1、用“$(selector).removeAttr("readonly")”语句删除readonly属性;2、用“$(selector).attr("readonly",false)”将readonly属性的值设置为false。

on()方法有4个参数:1、第一个参数不可省略,规定要从被选元素添加的一个或多个事件或命名空间;2、第二个参数可省略,规定元素的事件处理程序;3、第三个参数可省略,规定传递到函数的额外数据;4、第四个参数可省略,规定当事件发生时运行的函数。


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