87 lines
2.1 KiB
HTML
87 lines
2.1 KiB
HTML
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="UTF-8">
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<title></title>
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<style>
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* {
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margin: 0;
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padding: 0;
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}
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#fruits {
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width: 120px;
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margin: 20px 20px;
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}
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#fruits>li {
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list-style-type: none;
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height: 40px;
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color: white;
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background-color: #009966;
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line-height: 40px;
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text-align: center;
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margin-top: 2px;
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}
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#fruits>li>a {
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float: right;
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color: white;
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text-decoration: none;
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}
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#fruits~input {
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border: none;
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outline: none;
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text-align: center;
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margin: 20px 15px;
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}
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input[type=text] {
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border-bottom: 1px solid gray !important;
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}
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#ok {
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width: 80px;
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height: 30px;
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background-color: #CC3333;
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color: white;
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}
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</style>
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</head>
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<body>
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<div id="container">
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<ul id="fruits">
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<li>苹果<a href="">×</a></li>
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<li>香蕉<a href="">×</a></li>
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<li>火龙果<a href="">×</a></li>
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<li>西瓜<a href="">×</a></li>
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</ul>
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<input type="text" name="fruit">
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<input id="ok" type="button" value="确定">
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</div>
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<script src="js/jquery.min.js"></script>
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<script>
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function removeListItem(evt) {
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evt.preventDefault()
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// $函数的参数是一个原生的JavaScript对象,返回与原生JavaScript对象对应的jQuery对象
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$(evt.target).parent().remove()
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}
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// $函数的四种用法:
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// $函数的参数是一个匿名函数或箭头函数,传入的函数是页面加载完成后要执行的回调函数
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$(() => {
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// $函数的参数是一个样式表选择器字符串,获取页面元素得到一个jQuery对象(伪数组 - 数组中装的是原生JavaScript对象)
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$('#fruits>li>a').on('click', removeListItem)
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$('#ok').on('click', (evt) => {
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let input = $('#ok').prev();
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let name = input.val().trim()
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if (name) {
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$('#fruits').append(
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// $函数的参数是一个标签字符串,创建一个新的元素并获得对应的jQuery对象
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$('<li>').text(name).append(
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$('<a href="">').html('×').on('click', removeListItem)
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)
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)
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}
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input.val('').get(0).focus()
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})
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})
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</script>
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</body>
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</html>
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