JavaScript实现点击按钮弹出输入框，点确定后添加li组件到ul组件里
<!doctype html>
<html manifest="lab4.manifest">
<head>
<title>Mobile Cookbook</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0"> </head>
<body > <section> <form id="form1" name="form1" method="post">
<input type="button" name="button" onClick="inputBox();"id="button" value="Add Note" />
<ul id="ul">
<li>metting</li>
<li>读书</li>
<li>打代码</li>
<li>看代码</li>
<li>看博客</li>
</ul>
</form>
<div></div> <script language="javascript"> function inputBox()
{ var str=prompt("您的备忘录^-^",""); if(str!=null&&str!="")
{
var ul = document.getElementById("ul");
var num = ul.childNodes.length;
add(1,str);
alert("^-^添加成功,您刚输入的是："+ str)
} } function add(n,str){ var ul = document.getElementById('ul');
var li = document.createElement("li");
var num = ul.childNodes.length; li.innerHTML=str; for(var i=0;i<num;i++){
if(n==-1){
ul.appendChild(li);
}else if(i==n-1){
ul.insertBefore(li,ul.childNodes[i]);
}
} } </script>
</section>
</body>
</html>