前端基础---jquery练习
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左侧菜单
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>left_menu</title> <style> .menu{ height: 500px; width: 20%; background-color: gainsboro; text-align: center; float: left; } .content{ height: 500px; width: 80%; background-color: darkgray; float: left; } .title{ line-height: 50px; background-color: wheat; color: rebeccapurple;} .hide{ display: none; } </style> </head> <body> <div class="outer"> <div class="menu"> <div class="item"> <div class="title">菜单一</div> <div class="con"> <div>111</div> <div>111</div> <div>111</div> </div> </div> <div class="item"> <div class="title">菜单二</div> <div class="con hide"> <div>222</div> <div>222</div> <div>222</div> </div> </div> <div class="item"> <div class="title">菜单三</div> <div class="con hide"> <div>333</div> <div>333</div> <div>333</div> </div> </div> </div> <div class="content"></div> </div> <script src="jquery.min.js"></script> <script> $(".item .title").mouseover(function () { $(this).next().removeClass("hide").parent().siblings().children(".con").addClass("hide"); // $(this).next().removeClass("hide"); // $(this).parent().siblings().children(".con").addClass("hide"); }) </script> </body> </html>
Tab切换
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>tab</title>
<style>
*{
margin: 0;
padding: 0;
}
.tab_outer{
margin: 20px auto;
width: 60%;
}
.menu{
background-color: #cccccc;
/*border: 1px solid red;*/
line-height: 40px;
text-align: center;
}
.menu li{
display: inline-block;
margin-left: 14px;
padding:5px 20px;
}
.menu a{
border-right: 1px solid red;
padding: 11px;
}
.content{
background-color: tan;
border: 1px solid green;
height: 300px;
}
.hide{
display: none;
}
.current{
background-color: #2868c8;
color: white;
border-top: solid 2px rebeccapurple;
}
</style>
</head>
<body>
<div class="tab_outer">
<ul class="menu">
<li relation="c1" class="current">菜单一</li>
<li relation="c2" >菜单二</li>
<li relation="c3">菜单三</li>
</ul>
<div class="content">
<div id="c1">内容一</div>
<div id="c2" class="hide">内容二</div>
<div id="c3" class="hide">内容三</div>
</div>
</div>
</body>
<script src="jquery.min.js"></script>
<script>
$(".menu li").click(function(){
var index=$(this).attr("relation");
$("#"+index).removeClass("hide").siblings().addClass("hide");
$(this).addClass("current").siblings().removeClass("current");
});
</script>
</html>table正反选
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<button>全选</button>
<button>取消</button>
<button>反选</button>
<hr>
<table border="1">
<tr>
<td><input type="checkbox"></td>
<td>111</td>
<td>111</td>
<td>111</td>
<td>111</td>
</tr>
<tr>
<td><input type="checkbox"></td>
<td>222</td>
<td>222</td>
<td>222</td>
<td>222</td>
</tr>
<tr>
<td><input type="checkbox"></td>
<td>333</td>
<td>333</td>
<td>333</td>
<td>333</td>
</tr>
<tr>
<td><input type="checkbox"></td>
<td>444</td>
<td>444</td>
<td>444</td>
<td>444</td>
</tr>
</table>
<script src="jquery.min.js"></script>
<script>
$("button").click(function(){
if($(this).text()=="全选"){ // $(this)代指当前点击标签
$("table :checkbox").prop("checked",true)
}
else if($(this).text()=="取消"){
$("table :checkbox").prop("checked",false)
}
else {
$("table :checkbox").each(function(){
$(this).prop("checked",!$(this).prop("checked"));
});
}
});
</script>
</body>
</html>模态对话框
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
*{
margin: 0;
}
.back{
background-color: wheat;
height: 2000px;
}
.shade{
position: fixed;
top: 0;
bottom: 0;
left:0;
right: 0;
background-color: darkgray;
opacity: 0.4;
}
.hide{
display: none;
}
.models{
position: fixed;
top: 50%;
left: 50%;
margin-left: -100px;
margin-top: -100px;
height: 200px;
width: 200px;
background-color: white;
}
</style>
</head>
<body>
<div class="back">
<input id="ID1" type="button" value="click" onclick="action1(this)">
</div>
<div class="shade hide"></div>
<div class="models hide">
<input id="ID2" type="button" value="cancel" onclick="action2(this)">
</div>
<script src="jquery.min.js"></script>
<script>
function action1(self){
$(self).parent().siblings().removeClass("hide");
}
function action2(self){
//$(self).parent().parent().children(".models,.shade").addClass("hide")
$(self).parent().addClass("hide").prev().addClass("hide")
}
</script>
</body>
</html>复制样式条
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<div class="outer">
<div class="item">
<input type="button" value="+">
<input type="text">
</div>
</div>
<script src=jquery.min.js></script>
<script>
function add(self){
// 注意:if var $clone_obj=$(".outer .item").clone();会一遍二,二变四的增加
var $clone_obj=$(self).parent().clone();
$clone_obj.children(":button").val("-").attr("onclick","removed(this)");
$(self).parent().parent().append($clone_obj);
}
function removed(self){
$(self).parent().remove()
}
/*
$("[value=‘+‘]").click(function(){
var $clone_obj=$(this).parent().clone();
$clone_obj.children(":button").val("-").attr("class","mark");
$(this).parent().parent().append($clone_obj);
});
$(".outer").on("click",".item .mark",function(){
console.log($(this)); // $(this): .item .mark标签
$(this).parent().remove()
})
*/
</script>
</body>
</html>注册验证
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<form class="Form" id="form">
<p><input class="v1" type="text" name="username" mark="用户名"></p>
<p><input class="v1" type="text" name="email" mark="邮箱"></p>
<p><input type="submit" value="submit"></p>
</form>
<script src="jquery.min.js"></script>
<script>
$("#form :submit").click(function(){
flag=true;
$("#form .v1").each(function(){
$(this).next("span").remove();// 防止对此点击按钮产生多个span标签
var value=$(this).val();
if (value.trim().length==0){
var mark=$(this).attr("mark");
var ele=document.createElement("span");
ele.innerHTML=mark+"不能为空!";
$(this).after(ele);
$(ele).prop("class","error");// DOM对象转换为jquery对象
flag=false;
return false ; //-------->引出$.each的return false注意点
}
});
return flag
});
</script>
</body>
</html>拖动面板
<!DOCTYPE html> <html> <head lang="en"> <meta charset="UTF-8"> <title></title> </head> <body> <div style="border: 1px solid #ddd;width: 600px;position: absolute;"> <div id="title" style="background-color: black;height: 40px;color: white;"> 标题 </div> <div style="height: 300px;"> 内容 </div> </div> <script type="text/javascript" src="jquery.min.js"></script> <script> $(function(){ // 页面加载完成之后自动执行 $(‘#title‘).mouseover(function(){ $(this).css(‘cursor‘,‘move‘); }).mousedown(function(e){ //console.log($(this).offset()); var _event = e || window.event; // 原始鼠标横纵坐标位置 var ord_x = _event.clientX; var ord_y = _event.clientY; var parent_left = $(this).parent().offset().left; var parent_top = $(this).parent().offset().top; $(this).on(‘mousemove‘, function(e){ var _new_event = e || window.event; var new_x = _new_event.clientX; var new_y = _new_event.clientY; var x = parent_left + (new_x - ord_x); var y = parent_top + (new_y - ord_y); $(this).parent().css(‘left‘,x+‘px‘); $(this).parent().css(‘top‘,y+‘px‘); }) }).mouseup(function(){ $(this).off(‘mousemove‘); }); }) </script> </body> </html>
轮播图
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<script src="jquery-3.1.1.js"></script>
<title>Title</title>
<style>
.outer{
width: 790px;
height: 340px;
margin: 80px auto;
position: relative;
}
.img li{
position: absolute;
list-style: none;
top: 0;
left: 0;
display: none;
}
.num{
position: absolute;
bottom: 18px;
left: 270px;
list-style: none;
}
.num li{
display: inline-block;
width: 18px;
height: 18px;
background-color: white;
border-radius: 50%;
text-align: center;
line-height: 18px;
margin-left: 4px;
}
.btn{
position: absolute;
top:50%;
width: 30px;
height: 60px;
background-color: lightgrey;
color: white;
text-align: center;
line-height: 60px;
font-size: 30px;
opacity: 0.7;
margin-top: -30px;
display: none;
}
.left{
left: 0;
}
.right{
right: 0;
}
.outer:hover .btn{
display: block;
}
.num .active{
background-color: red;
}
</style>
</head>
<body>
<div class="outer">
<ul class="img">
<li style="display: block"><a href=""><img src="img/1.jpg" ></a></li>
<li><a href=""><img src="img/2.jpg" ></a></li>
<li><a href=""><img src="img/3.jpg" ></a></li>
<li><a href=""><img src="img/4.jpg" ></a></li>
<li><a href=""><img src="img/5.jpg" ></a></li>
<li><a href=""><img src="img/6.jpg" ></a></li>
</ul>
<ul class="num">
<!--<li class="active"></li>-->
<!--<li></li>-->
<!--<li></li>-->
<!--<li></li>-->
<!--<li></li>-->
<!--<li></li>-->
</ul>
<div class="left btn"> < </div>
<div class="right btn"> > </div>
</div>
<script src="jquery-3.1.1.js"></script>
<script>
var i=0;
// 通过jquery自动创建按钮标签
var img_num=$(".img li").length;
for(var j=0;j<img_num;j++){
$(".num").append("<li></li>")
}
$(".num li").eq(0).addClass("active");
// 手动轮播
$(".num li").mouseover(function () {
i=$(this).index();
$(this).addClass("active").siblings().removeClass("active");
$(".img li").eq(i).stop().fadeIn(200).siblings().stop().fadeOut(200)
});
// 自动轮播
var c=setInterval(GO_R,1500);
function GO_R() {
if(i==img_num-1){
i=-1
}
i++;
$(".num li").eq(i).addClass("active").siblings().removeClass("active");
$(".img li").eq(i).stop().fadeIn(1000).siblings().stop().fadeOut(1000)
}
function GO_L() {
if(i==0){
i=img_num
}
i--;
$(".num li").eq(i).addClass("active").siblings().removeClass("active");
$(".img li").eq(i).stop().fadeIn(1000).siblings().stop().fadeOut(1000); // fadeIn,fadeOut单独另开启的线程
}
$(".outer").hover(function () {
clearInterval(c)
},function () {
c=setInterval(GO_R,1500)
});
// button 加定播
$(".right").click(GO_R);
$(".left").click(GO_L)
</script>
</body>
</html>表格编辑操作
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<link rel="stylesheet" href="bootstrap-3.3.7-dist/css/bootstrap.css">
<script src="jquery-2.1.4.min.js"></script>
<script src="bootstrap-3.3.7-dist/js/bootstrap.js"></script>
<style>
.container .row td{
padding: 10px;
}
#box{
padding-top:50px;
}
.add{
margin:20px 0;
}
</style>
</head>
<body>
<div class="container">
<div class="row">
<div class="col-md-7 col-lg-offset-3" id="box" >
<div>
<button type="button" class="btn btn-success add" data-toggle="modal" data-target="#myModal">
添加员工信息
</button>
</div>
<table class="table table-striped">
<tr>
<th>姓名</th>
<th>年龄</th>
<th>部门</th>
<th>薪水</th>
<th>操作</th>
</tr>
<tr>
<td>张三</td>
<td>23</td>
<td>销售部</td>
<td>3000</td>
<td>
<button class="btn btn-danger btn-sm del">删除</button>
<button class="btn btn-info btn-sm edit">编辑</button>
<button class="btn btn-primary btn-sm">查看</button>
</td>
</tr>
<tr class="handle">
<td>李四</td>
<td>32</td>
<td>保安部</td>
<td>5000</td>
<td>
<button class="btn btn-danger btn-sm del">删除</button>
<button class="btn btn-info btn-sm edit">编辑</button>
<button class="btn btn-primary btn-sm">查看</button>
</td>
</tr>
</table>
</div>
</div>
</div>
<!-- Modal -->
<div class="modal fade" id="myModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel">
<div class="modal-dialog" role="document">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">×</span></button>
<h4 class="modal-title" id="myModalLabel">Modal title</h4>
</div>
<div class="modal-body">
<div class="row">
<div class="col-md-5 col-lg-offset-3">
<form class="add_form edit_form">
<div class="form-group">
<label for="username">姓名</label>
<input type="text" class="form-control" id="username" placeholder="username">
</div>
<div class="form-group">
<label for="age">年龄</label>
<input type="text" class="form-control" id="age" placeholder="age">
</div>
<div class="form-group">
<label for="dep">部门</label>
<input type="text" id="dep" placeholder="dep" class="form-control">
</div>
<div class="form-group">
<label for="salary">薪水</label>
<input type="text" class="form-control" id="salary" placeholder="salary">
</div>
</form>
</div>
</div>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
<button type="button" class="btn btn-primary add_save">Save changes</button>
<button type="button" class="btn btn-primary edit_save" style="display: none">Save changes</button>
</div>
</div>
</div>
</div>
<script>
// 提炼出一个创建tr的函数
function createTr(){
var $tr=$("<tr>");
$(".add_form :text").each(function(){
$tr.append($("<td>").html($(this).val()))
});
$handle=$(".handle td:last").clone();
$tr.append($handle);
return $tr
}
// 添加按钮
$(".add_save").click(function(){
$("#myModal").modal("hide");
var $tr=createTr();
$(".table tbody").append($tr)
});
// 删除按钮
$("table").on("click",".del",function(){
$(this).parent().parent().remove()
});
//编辑按钮
$("table").on("click",".edit",function(){
var $edit_obj=$(this).parent().parent();
var arr=[];
$(this).parent().siblings().each(function(){
arr.push($(this).text())
});
$(".edit_form :text").each(function(i){
$(this).val(arr[i])
});
$("#myModal").modal("show");
$(".edit_save").show().prev().hide();
$(".edit_save").click(function(){
$("#myModal").modal("hide");
// 创建tr标签
var $tr=createTr();
$edit_obj.replaceWith($tr);
$(".edit_save").hide().prev().show();
});
})
</script>
</body>
</html>注册实例
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
.error{
color:red
}
</style>
</head>
<body>
<form class="Form">
<p><input class="v1" type="text" name="username" mark="用户名"></p>
<p><input class="v1" type="text" name="email" mark="邮箱"></p>
<p><input type="submit" value="submit"></p>
</form>
<script src="jquery-2.1.4.min.js"></script>
<script>
$(".Form :submit").click(function(){
flag=true;
$("Form .v1").each(function(){
var value=$(this).val();
if (value.trim().length==0){
var mark=$(this).attr("mark");
var $span=$("<span>");
$span.html(mark+"不能为空!");
$span.prop("class","error");
$(this).after($span);
setTimeout(function(){
$span.remove();
},800);
flag=false;
return flag;
}
});
return flag
});
</script>
</body>
</html>本文出自 “lyndon” 博客，请务必保留此出处http://lyndon.blog.51cto.com/11474010/1978888
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