发布于 2016-11-04 13:27:43 | 199 次阅读 | 评论: 0 | 来源: 网友投递
这里有新鲜出炉的Javascript教程，程序狗速度看过来！
JavaScript客户端脚本语言
Javascript 是一种由Netscape的LiveScript发展而来的原型化继承的基于对象的动态类型的区分大小写的客户端脚本语言，主要目的是为了解决服务器端语言，比如Perl，遗留的速度问题，为客户提供更流畅的浏览效果。
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>防止重复表单提交</title>
<style>
#refresh{
display: none;
width:200px;
height:20px;
background-color: #ff0;
}
</style>
<script>
var inprocess = false;
window.onload = function(){
document.forms["picker"].onsubmit = validateSubmit;
document.getElementById("refresh").onclick = startOver;
}
function validateSubmit () {
// 防止重复的表单提交
if (inprocess) return;
inprocess = true;
console.log(inprocess);
document.getElementById("submitbutton").disabled = true;
document.getElementById("refresh").style.display = "block";
document.getElementById("message").innerHTML = "<p>正在processing，稍等</p>";
return false;
}
function startOver(){
inprocess = false;
document.getElementById("submitbutton").disabled = false;
document.getElementById("message").innerHTML = "";
document.getElementById("refresh").style.display = "none";
}
</script>
</head>
<body>
<form id="picker" method="post" action="">
group1:<input type="radio" name="group1" value="one" />
group2:<input type="radio" name="group1" value="two" />
group3:<input type="radio" name="group1" value="three" /><br /><br />
Input 1: <input type="text" id="intext" />
Input 2: <input type="text" id="intext2" />
Input 3: <input type="text" id="intext3" />
<input type="submit" id="submitbutton" value="send form" />
</form>
<div id="refresh">
<p>单击我</p>
</div>
<div id="message"></div>
</body>
</html>