添加聊天信息
<!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>聊天室</title>
</head>
<body>
<div style="width:300px;height:300px;border:1px solid #e0e0e0;">
<ul></ul>
</div>
<div style="width:300px;height:50px;border:1px solid #e0e0e0;">
<input type="text" placeholder="输入聊天内容" style="width:298px;height:48px;border:none;">
</div>
<script>
var input=document.getElementsByTagName('input')[0];
var ul=document.querySelector('ul');
input.onkeydown=function(){
if(event.keyCode==13){
var li=document.createElement('li');//****
li.innerHTML=input.value;
ul.appendChild(li);
input.value="";
}
}
</script>
</body>
</html>