abstract：<!DOCTYPE html> <html> <head> <meta charset="UTF-8">
<!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>智能在线客服系统布局二：javascript</title>
<style>
* {
margin: 0;
padding: 0;
}
.main {
margin: 20px auto;
width: 450px;
height: 680px;
background: #87CEFA;
box-shadow: 2px 2px 10px #888;
border-radius: 10px;
}
h2 {
text-align: center;
padding: 10px 0;
color: #fff;
border-bottom: 2px solid #fff;
}
.content {
width: 400px;
height: 500px;
background: #EFEFEF;
margin: 20px auto 10px;
border: 6px double lightgreen;
}
ul {
list-style: none;
line-height: 2em;
overflow: hidden;
padding: 15px;
}
.sub {
float: left;
width: 480px;
margin: 10px auto;
position: relative;
}
textarea {
width: 350px;
height: 50px;
resize: none;
outline: none;
position: absolute;
left: 20px;
border: 0;
font-size: 16px;
color: red;
}
button {
width: 58px;
height:50px;
background: red;
color: #fff;
position: absolute;
left: 370px;
border: 0;
}
button:hover {
background: black;
cursor: pointer;
}
</style>
</head>
<body>
<div>
<h2>在线客服</h2>
<div>
<ul>
<li></li>
</ul>
</div>
<div>
<textarea name="text"></textarea>
<button type="button">发送</button>
</div>
</div>
<script>
var text = document.getElementsByTagName('textarea')[0];
var ul = document.getElementsByTagName('ul')[0];
var btn = document.getElementsByTagName('button')[0];
var sum = 0;
text.focus();
btn.onclick = function() {
if (text.value.length === 0) {
alert('您好，请输入内容');
return false;
}
var userContent = text.value;
text.value = '';
var li = document.createElement('li');
li.innerHTML = userContent;
var userPic = '<img src="dom/inc/peter.jpg" width="30" style="border-radius:50%">';
li.innerHTML = userPic + ' ' + userContent;
ul.appendChild(li);
sum += 1;
setTimeout(function() {
var info = [
'您好，有什么需要能帮助您的？',
'今天的天气挺不错！',
'周末大酬宾，让利50%，欢迎选购！',
'退货还是换货了？',
'活动还有2天的时间，抓紧行动了。'
];
var temp = info[Math.floor(Math.random() * 5)];
var reli = document.createElement('li');
var kefuPic = '<img src="dom/inc/zly.jpg" width="30" style="border-radius:50%;">';
reli.innerHTML = kefuPic + ' ' + '<span style="color:red">' + temp + '</span>';
ul.appendChild(reli);
sum += 1;
}, 2000);
if (sum > 10) {
ul.innerHTML = '';
sum = 0;
}
}
</script>
</body>
</html>
Correcting teacher：韦小宝Correction time：2019-03-09 09:12:30
Teacher's summary：写的还算是很不错的 没事要记得多去练习练习哦 可以考虑使用jQuery来把这个项目改写一下