摘要:<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0">&
<!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>实战</title>
<style>
div:nth-child(1){
width: 450px;
height: 650px;
background-color: lightblue;
margin: 30px auto;
color:#333;
box-shadow: 2px 2px 2px #808080;
}
h2{
text-align: center;
margin-bottom:-10px;
}
div:nth-child(2){
width: 400px;
height: 500px;
border: 4px double green;
background-color: #efefef;
margin:20px 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: lightyellow;
}
button{
width:60px;
height: 40px;
background-color: seagreen;
color: white;
border:none;
}
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="rigth"><textarea name="text" cols="50" rows="4"></textarea></td>
<td align="left"><button type="button">发送</button></td>
</tr>
</table>
</div>
<script>
//获取到页面中的相关元素
let btn =document.getElementsByTagName('button')[0];
let text = document.getElementsByName('text')[0];
let list = document.getElementsByTagName('ul')[0];
let sum = 0;
//添加点击事件,获取用户留言并发送到窗口
btn.onclick = function(){
if(text.value.length === 0){
alert('小子,你啥也没说啊?');
return false;
}
let userComment = text.value; //将用户提交的内容获取并保存
text.value = '';//立即将用户发言区清空
//创建一个li
let li = document.createElement('li');
//用户头像
let userPic = '<img src="/inc/0.jpg" width="30" style="border-radius:50%">';
li.innerHTML = userPic + ' ' +userComment;
list.appendChild(li);
sum +=1;
setTimeout(function(){
let info = [
'真烦人,有话快说!',
'除了退货,什么都可以聊!',
'说的啥,本姑娘咋听不懂?',
'在我觉得方便的时候在回复你!',
'投诉我?投诉我的人多了,你算老几啊?'
];
let temp = info[Math.floor(Math.random()*4)];
let reply = document.createElement('li');
let kefuPic = '<img src="/inc/1.jpg" width="30" style="border-radius:50%">';
reply.innerHTML = kefuPic +' ' + '<span style="color:red">'+temp+'</span>';
list.appendChild(reply);
sum +=1;
},2000);
//清空窗口,条数够10条的时候
if(sum >10){
list.innerHTML = '';
sum = 0;
}
}
</script>
</body>
</html>
批改老师:韦小宝批改时间:2019-03-10 14:12:27
老师总结: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 就是相当于是把前端好好复习了一下