这篇文章主要介绍了JavaScript实现留言板的方法,具有一定借鉴价值,感兴趣的朋友可以参考下,希望大家阅读完这篇文章之后大有收获,下面让小编带着大家一起了解一下。
具体内容如下
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>留言板</title>
<style type="text/css">
#div1{
width: 400px;
height: 200px;
background-color: antiquewhite;
}
span{
color: blue;
text-decoration: underline;
}
</style>
</head>
<body>
<div id="div1">
姓名:<input type="text" name="user" id="username" /><br />
内容:<textarea rows="10" cols="40" id="info">
</textarea>
<input type="button" value="留言" id="btn" /><br />
</div>
<h4>留言板</h4><br />
<div id="div2">
</div>
</body>
<script type="text/javascript">
var userInput = document.getElementById("username");
var infoInput = document.getElementById("info");
var btn = document.getElementById("btn");
var div2 = document.getElementById("div2");
btn.onclick = function(){
var user = userInput.value;
var info = infoInput.value;
var divUser = document.createElement("div");
divUser.innerText = user;
divUser.style.backgroundColor = "darkgrey";
divUser.style.width = "400px";
divUser.style.height = "30px";
div2.appendChild(divUser);
var divInfo = document.createElement("div");
divInfo.innerText = info;
divInfo.style.backgroundColor = "antiquewhite";
divInfo.style.width = "400px";
divInfo.style.height = "80px";
div2.appendChild(divInfo);
var del = document.createElement("span");
del.innerText = "删除";
del.style.float = "right";
divInfo.appendChild(del);
del.onclick = function(){
divUser.remove();
divInfo.remove();
del.remove();
}
}
</script>
</html>
showtime:

点击删除,可以删除留言:

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