abstract：<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0">&
<!DOCTYPE html>
<html>
<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>实战热身－聊天信息生成原理</title>
</head>
<body>
<input type="text" name="info">
<button>提交</button>
<ul></ul>
<script>
//获取元素
let input = document.getElementsByName('info')[0];
let button = document.getElementsByTagName('button')[0];
let ul = document.getElementsByTagName('ul')[0];
button.onclick = function (){
let li = document.createElement('li');
li.innerHTML = input.value; //文本框中的内容
let first = ul.firstElementChild;
ul.insertBefore(li,first); //将用户输入的信息显示到列表中最前面
input.value = ''; //将文本框中内容清空
}
</script>
</body>
</html>
Correcting teacher：查无此人Correction time：2019-03-18 09:45:20
Teacher's summary：完成的不错。每个项目，都是先从页面开始。继续加油。