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JavaScript内容梳理 示例之模态对话框 示例之全选和反选以及取消 示例之后台管理左侧菜单
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复制小程序
<!DOCTYPE html>
<!--示例之模态对话框-->
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
.hide{
display: none;
}
.c1{
position: fixed;
left: 0;
top:0;
right:0;
bottom:0;
background-color: black;
opacity: 0.6;
z-index: 9;
}
.c2{
width:180px;
height:120px;
background-color: white;
position:fixed;
left: 50%;
top:50%;
margin-left: -200PX;
margin-top: -200px;
z-index: 10;
}
</style>
</head>
<body style="margin: 100px;"> <div>
<input type="button" value="添加" onclick="ShowModel();"/>
<table>
<thead>
<tr>
<th>主机名</th>
<th>端口</th>
</tr>
</thead>
<tbody>
<tr>
<td>1.1.1.1</td>
<td>191</td>
</tr>
<tr>
<td>1.1.1.2</td>
<td>192</td>
</tr>
<tr>
<td>1.1.1.3</td>
<td>193</td>
</tr>
</tbody>
</table>
</div>
<!--遮罩层开始-->
<div id="i1" class="c1 hide"></div>
<!--遮罩层结束-->
<!--弹出框开始-->
<div id="i2" class="c2 hide">
<p><input type="text" /></p>
<p><input type="text" /></p>
<p>
<input type="button" value="取消" onclick="HideModel();"/>
<input type="button" value="确定" />
</p>
</div>
<!--弹出框结束-->
<script>
function ShowModel() {
document.getElementById('i1').classList.remove('hide');
document.getElementById('i2').classList.remove('hide');
}
function HideModel() {
document.getElementById('i1').classList.add('hide');
document.getElementById('i2').classList.add('hide');
}
</script>
</body>
</html>
示例之模态对话框
<!DOCTYPE html>
<!--示例之全选和反选以及取消-->
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
.hide{
display: none;
}
.c1{
position: fixed;
left: 0;
top:0;
right:0;
bottom:0;
background-color: black;
opacity: 0.6;
z-index: 9;
}
.c2{
width:180px;
height:120px;
background-color: white;
position:fixed;
left: 50%;
top:50%;
margin-left: -200PX;
margin-top: -200px;
z-index: 10;
}
</style>
</head>
<body style="margin: 100px;"> <div>
<input type="button" value="添加" onclick="ShowModel();"/>
<input type="button" value="全选" onclick="ChooseAll();"/>
<input type="button" value="取消" onclick="CancleAll();"/>
<input type="button" value="反选" onclick="ReverseAll();"/>
<table>
<thead>
<tr>
<th>选择</th>
<th>主机名</th>
<th>端口</th>
</tr>
</thead>
<tbody id="tb">
<tr>
<td>
<input type="checkbox"/>
</td>
<td>1.1.1.1</td>
<td>191</td>
</tr>
<tr>
<td>
<input type="checkbox" id="test"/>
</td>
<td>1.1.1.2</td>
<td>192</td>
</tr>
<tr>
<td>
<input type="checkbox"/>
</td>
<td>1.1.1.3</td>
<td>193</td>
</tr>
</tbody>
</table>
</div>
<!--遮罩层开始-->
<div id="i1" class="c1 hide"></div>
<!--遮罩层结束-->
<!--弹出框开始-->
<div id="i2" class="c2 hide">
<p><input type="text" /></p>
<p><input type="text" /></p>
<p>
<input type="button" value="取消" onclick="HideModel();"/>
<input type="button" value="确定" />
</p>
</div>
<!--弹出框结束-->
<script>
function ShowModel() {
document.getElementById('i1').classList.remove('hide');
document.getElementById('i2').classList.remove('hide');
}
function HideModel() {
document.getElementById('i1').classList.add('hide');
document.getElementById('i2').classList.add('hide');
}
function ChooseAll() {
var tbody = document.getElementById('tb')
//获取所有的tr
var tr_list = tbody.children;
for(var i=0;i<tr_list.length;i++){
//循环所有的tr,current_tr
var current_tr = tr_list[i];
var checkbox = current_tr.children[0].children[0];
checkbox.checked = true;
}
}
function CancleAll() {
var tbody = document.getElementById('tb')
//获取所有的tr
var tr_list =tbody.children;
for(var i=0;i<tr_list.length;i++){
//循环所有的tr,current_tr
var current_tr = tr_list[i];
var checkbox = current_tr.children[0].children[0];
checkbox.checked = false;
}
}
function ReverseAll() {
var tbody = document.getElementById('tb')
//获取所有的tr
var tr_list =tbody.children;
for(var i=0;i<tr_list.length;i++){
//循环所有的tr,current_tr
var current_tr = tr_list[i];
var checkbox = current_tr.children[0].children[0];
if(checkbox.checked) {
checkbox.checked = false;
}
else {
checkbox.checked = true;
}
}
}
</script>
</body>
</html>
示例之全选和反选以及取消
<!DOCTYPE html>
<!--示例之后台管理左侧菜单-->
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
.hide{
display: none;
}
.item .header{
height:35px;
background-color: #2459a2;
color: white;
line-height: 35px;
}
</style>
</head>
<body>
<div style="height: 48px;"> </div>
<div style="width: 300px;">
<div class="item">
<div id ='i1'class="header" onclick="ChangeMenu('i1');"> 菜单一</div>
<div class="content">
<div>内容11</div>
<div>内容12</div>
<div>内容13</div>
</div>
</div>
<div class="item">
<div id ='i2'class="header" onclick="ChangeMenu('i2');"> 菜单二</div>
<div class="content hide">
<div>内容21</div>
<div>内容22</div>
<div>内容23</div>
</div>
</div>
<div class="item">
<div id ='i3'class="header" onclick="ChangeMenu('i3');"> 菜单三</div>
<div class="content hide">
<div>内容31</div>
<div>内容32</div>
<div>内容33</div>
</div>
</div>
<div class="item">
<div id ='i4'class="header" onclick="ChangeMenu('i4');"> 菜单四</div>
<div class="content hide">
<div>内容41</div>
<div>内容42</div>
<div>内容43</div>
</div>
</div>
</div>
<script>
function ChangeMenu(nid) {
var current_header = document.getElementById(nid);
//console.log(current_header);
var item_list = current_header.parentElement.parentElement.children;
//console.log(item_list);
for(var i=0;i<item_list.length;i++){
var current_item = item_list[i];
current_item.children[1].classList.add('hide');
}
current_header.nextElementSibling.classList.remove('hide');
}
</script> </body>
</html>
示例之后台管理左侧菜单
<!DOCTYPE html>
<!--JavaScript内容梳理-->
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<div>CSS补充:
<div>position</div>
<div>background</div>
<div>hover</div>
<div>overflow</div>
<div>z-index</div>
<div>opacity</div>
<div>示例:输入框右边放置图标</div>
</div>
<div>javaScript:
<div>局部变量 var</div>
<div>基本数据类型:
<div>数字</div>
<div>字符串</div>
<div>数组</div>
<div>字典</div>
<div>布尔值</div>
</div>
<div>For循环</div>
<div>条件语句
<div>==</div>
<div>!=</div>
<div>===</div>
<div>||</div>
<div>&&</div>
</div>
<div>函数的定义:
<div>function func(){....}</div>
</div>
</div>
<div>Dom:
<div>找标签
<div>直接找$('#id') $('.c1').siblings()</div>
<div>间接找</div>
</div>
<div>操作
<div>innerText</div>
<div>checkbox:
<div>checked</div>
</div>
<div>className</div>
<div>classList</div>
</div>
<div>事件:
<div>〈div onclick="函数(123)"〉〈/div〉</div>
<div>〈script〉〈/script〉</div>
</div>.
<div>定时器:
<div>
setInterval('函数()',4000)
</div>
</div>
<div>其他:
<div>
alert()
console.log()
</div>
</div>
</div>
<div>实例:
<div>欢迎光临</div>
<div>多选</div>
<div>模拟对话框</div>
<div>左侧菜单</div>
<div>返回顶部</div>
</div>
</body>
</html>
JavaScript内容梳理