摘要：<!DOCTYPE html><html><head> <meta charset="utf-8"> <title>在线客服系统</title> <style type="text/css"> div:nth-child(1){ width:500px; heigh
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>在线客服系统</title>
<style type="text/css">
div:nth-child(1){
width:500px;
height: 600px;
background-color:pink;
margin:30px auto;
color:#333;
box-shadow: 2px 2px 2px #808080
}
h2{
text-align: center;
margin-bottom:-20px
}
div:nth-child(2){
width:420px;
height: 450px;
border:3px double orange;
background-color: #efefef;
margin: 30px auto 10px;
}
UL{
list-style-type:none;
line-height:2em;
overflow:hidden;
padding:15px;
}
table{
width: :90%;
height:80px;
margin: auto;
}
textarea{
border:none;
resize:none;
background-color: #efefef;
}
button{
width: 50px;
height: 40px;
border:none;
background-color:red;
}
button:hover{
cursor:pointer;
background-color: orange;
}
</style>
</head>
<body>
<div>
<h2>在线客服</h2>
<div>
<ul>
<li></li>
</ul>
</div>
<table>
<tr>
<td align="right"><textarea name="text" cols="50" rows="4"></textarea></td>
<td align="left"><button type="button">发送</button></td>
</tr>
</table>
</div>
<script>
let btn=document.getElementsByTagName('button')[0];
let text=document.getElementsByName('text')[0];
let list= document.getElementsByTagName('ul')[0];
let sum=0;
btn.onclick=function(){
if (text.value.length===0){
alert('您还没有说话!');
return false;
}
let userComment = text.value;
text.value='';
let li=document.createElement('li');
let userPic = '<img src= "aa.jpg" width="30" style="border-radius:50%">';
li.innerHTML = userPic + '' + userComment;
list.appendChild(li);
sum += 1;
setTimeout(function(){
let info = ['1有什么希要帮忙吗？',
'2有什么希要帮忙吗？',
'3有什么希要帮忙吗？',
'4有什么希要帮忙吗？',
'5有什么希要帮忙吗？'
];
let temp = info[Math.floor(Math.random()*4)];
let replay = document.createElement('li');
let kfPic = '<img src= "bb.jpg" width="30" style="border-radius:50%">';
replay.innerHTML = kfPic + ' ' + '<span style="color:red">'+ temp +'</span>';
list.appendChild(replay);
sum += 1;
},1000);
if(sum>8){
list.innerHTML='';
sum=0;
}
}
</script>
</body>
</html>
