JavaScript的onchange事件
<select name="status" ><option >New<option >Pending<option >Complete</select>
<input type="text" name="completeddate" value="" size=30 readonly="readonly" />当选到了Complete时候 文本域会自动出现当天的日期 怎么使用JavaScript实现？ 急急急啊
楼上兄台简锋思路很正确不过貌似忘加了点什么.
select 标签要记得赋值
<select name="status" onchange="showTime(this)">
<option value="New">New</option>
<option value="Pending">Pending</option>
<option value="Complete">Complete</option>拦瞎晌
</select>
脚本:
<script language="javascript"神派>
function showTime(obj){
if(obj.value=="Complete"){
//这里直接用new Date()的话显示的会比较难看,可以转化一下
//document.getElementById("completeddate").value=new Date();
var date = new Date();
var newDate = date.getYear()+"年"+(date.getMonth()+1)+"月"+date.getDate()+"日";
document.getElementById("completeddate").value = newDate
}
}
</script>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title>无标题文档</title>
<script language="javascript">
function showTime(obj){
if(obj.value=="Complete"老基){
document.getElementById("completeddate").value=new Date();
}
}
</script>
</head>
<body>
<局则select name="status" onchange="showTime(this)">
<option>New
<option>Pending
<option>Complete
</select>
<input type="text" id="completeddate"侍腊谨 name="completeddate" value="" size=30 readonly="readonly"/>
</body>
</html>
<select name="status" onchange="showTime(this)">
<option value="New">New</option>
<option value="Pending">Pending</option>
<option value="Complete">隐雀Complete</option>
</select>
脚本:
<script language="javascript">
function showTime(obj){
if(obj.value=="Complete"){
//这里直接用new Date()的话消颂显示的会比较难看,可以转化一下
//document.getElementById("completeddate").value=new Date();
var date = new Date();
var newDate = date.getYear()+"年"+(date.getMonth()+1)+"月灶桥早"+date.getDate()+"日";
document.getElementById("completeddate").value = newDate
}
}
</script>