第一步放几个盒子，应该用来编辑标签，一个用来显示可选标签
<div class="cont">
<ul class="addLabel">
<!-- 放已选标签的盒子 -->
<li class="addlabelText"></li>
<li class="addInput">
<input type="text">
<!-- 放input是为了实现可输入标签 -->
</li>
</ul>
<!-- 放可选标签的盒子 -->
<div class="allLabel">
<span><em class="addTag">aaa</em></span>
<span><em class="addTag">bbb</em></span>
<span><em class="addTag">ccc</em></span>
</div>
<button>获取标签</button>
</div>
第二步，写css样式（我这个简易版的就随便写写，需要的可以自定义好看的样式）
* {
padding: 0;
margin: 0;
}
ul {
list-style: none;
}
.cont {
width: 500px;
height: 400px;
margin: auto;
text-align: center;
border: 1px solid #ccc;
}
.addLabel {
margin: auto;
width: 300px;
border: 1px solid #ccc;
border-radius: 5px;
display: flex;
flex-wrap: wrap;
min-height: 34px;
margin-bottom: 20px;
}
.addlabelText {
display: flex;
}
.addLabel:hover {
cursor: text;
}
em {
font-style: normal;
}
.addList {
font-size: 12px;
color: #777;
margin: 0 3px;
line-height: 1.5;
}
.addList span {
display: inline-block;
line-height: 2.5;
}
.addList em {
cursor: pointer;
margin-left: 2px;
}
.allLabel {
margin: auto;
margin-bottom: 10px;
}
.addTag {
color: #4e72b8;
background-color: #fff;
border: 1px solid #4e72b8;
padding: 2px 12px;
font-size: 12px;
border-radius: 12px;
line-height: 24px;
}
input {
width: 40px;
height: 100%;
border: none;
}
input:focus {
outline: none;
}
第三步就是引入jquery了
第四步jquery实现
先定义两个数组
var lookList = [];//存储选择标签数组
var seeList = ['1', '2', '3'];//已有标签数组
初步渲染到页面中存储已选标签的盒子
function see() {
var text = '';
seeList.forEach(item => {
text += '<div class="addList"><span>' + item + '</span><em class="removeList" onClick="removeList(this)">x</em>,</div>';
// 在这把数据存储到另一个数组
lookList.push(item);
lookList.join('.');
});
$('.addlabelText').append(text);
}
see()
点击已有标签到已选标签中
$('.addTag').on('click', function () {
console.log();
var text = $(this).text()
var addtext = '<div class="addList"><span>' + text + '</span><em class="removeList" onClick="removeList(this)">x</em>,</div>';
$('.addlabelText').append(addtext);
lookList.push(text);
lookList.join('.');
})
点击已选标签的盒子，让input处于激活可编辑状态，实现可输入自定义标签
$('.addLabel').on('click', function () {
$('input').focus();
$('.addLabel').css({
'border': '1px solid #66afe9',
'box-shadow': 'inset 0 1px 1px rgba(0,0,0,.075), 0 0 8px rgba(102,175,233,.6)'
})
})
把自定义标签添加到已选标签
$('input').on('blur', function () {
$('.addLabel').css({
'border': '1px solid #ddd',
'box-shadow': 'none'
})
var inputText = $('input').val();
// 判断输入值不为空时添加标签
if (inputText !== '') {
var addtext = '<li class="addList"><span>' + inputText + '</span><em class="removeList" onClick="removeList(this)">x</em>,</li>';
$('.addlabelText').append(addtext);
$('input').val('');
lookList.push(inputText);
lookList.join('.');
}
})
点击标签后面的删除可删除标签
function removeList(add) {
var textList = $(add).prev().text()
$(add).parents('.addList').remove();
lookList.splice($.inArray(textList, lookList), 1)
seeList.splice($.inArray(textList, seeList), 1)
console.log(lookList)
}
最后点击按钮查看已选标签
$('button').on('click', function () {
console.log(lookList)
})
控制台输入结果
完整代码
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>标签的简易增删改查</title>
<style>
* {
padding: 0;
margin: 0;
}
ul {
list-style: none;
}
.cont {
width: 500px;
height: 400px;
margin: auto;
text-align: center;
border: 1px solid #ccc;
}
.addLabel {
margin: auto;
width: 300px;
border: 1px solid #ccc;
border-radius: 5px;
display: flex;
flex-wrap: wrap;
min-height: 34px;
margin-bottom: 20px;
}
.addlabelText {
display: flex;
}
.addLabel:hover {
cursor: text;
}
em {
font-style: normal;
}
.addList {
font-size: 12px;
color: #777;
margin: 0 3px;
line-height: 1.5;
}
.addList span {
display: inline-block;
line-height: 2.5;
}
.addList em {
cursor: pointer;
margin-left: 2px;
}
.allLabel {
margin: auto;
margin-bottom: 10px;
}
.addTag {
color: #4e72b8;
background-color: #fff;
border: 1px solid #4e72b8;
padding: 2px 12px;
font-size: 12px;
border-radius: 12px;
line-height: 24px;
}
input {
width: 40px;
height: 100%;
border: none;
}
input:focus {
outline: none;
}
</style>
</head>
<body>
<div class="cont">
<ul class="addLabel">
<!-- 放已选标签的盒子 -->
<li class="addlabelText"></li>
<li class="addInput">
<input type="text">
<!-- 放input是为了实现可输入标签 -->
</li>
</ul>
<!-- 放可选标签的盒子 -->
<div class="allLabel">
<span><em class="addTag">aaa</em></span>
<span><em class="addTag">bbb</em></span>
<span><em class="addTag">ccc</em></span>
</div>
<button>获取标签</button>
</div>
</body>
</html>
<script src="http://code.jquery.com/jquery-3.3.1.js"></script>
<script>
var lookList = [];//存储选择标签数组
var seeList = ['1', '2', '3'];//已有标签数组
function see() {
var text = '';
seeList.forEach(item => {
text += '<div class="addList"><span>' + item + '</span><em class="removeList" onClick="removeList(this)">x</em>,</div>';
// 在这把数据存储到另一个数组
lookList.push(item);
lookList.join('.');
});
$('.addlabelText').append(text);
}
see()
$('.addTag').on('click', function () {
console.log();
var text = $(this).text()
var addtext = '<div class="addList"><span>' + text + '</span><em class="removeList" onClick="removeList(this)">x</em>,</div>';
$('.addlabelText').append(addtext);
// console.log(text)
lookList.push(text);
lookList.join('.');
})
function removeList(add) {
var textList = $(add).prev().text()
$(add).parents('.addList').remove();
lookList.splice($.inArray(textList, lookList), 1)
seeList.splice($.inArray(textList, seeList), 1)
console.log(lookList)
}
$('.addLabel').on('click', function () {
$('input').focus();
$('.addLabel').css({
'border': '1px solid #66afe9',
'box-shadow': 'inset 0 1px 1px rgba(0,0,0,.075), 0 0 8px rgba(102,175,233,.6)'
})
})
$('input').on('blur', function () {
$('.addLabel').css({
'border': '1px solid #ddd',
'box-shadow': 'none'
})
var inputText = $('input').val();
// 判断输入值不为空时添加标签
if (inputText !== '') {
var addtext = '<li class="addList"><span>' + inputText + '</span><em class="removeList" onClick="removeList(this)">x</em>,</li>';
$('.addlabelText').append(addtext);
$('input').val('');
lookList.push(inputText);
lookList.join('.');
}
})
$('button').on('click', function () {
console.log(lookList)
})
</script>
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