document.getElementById是什么意思吗
document.getElementById是什么意思吗
[解决办法]
按对象的id找到对象
[解决办法]
你可以看看这个例子 它的意思是：获取对 ID 标签属性为指定值的第一个对象的引用。
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN " "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd ">
<html xmlns= "http://www.w3.org/1999/xhtml ">
<head>
<title> new document </title>
<meta name= "generator " content= "editplus " />
<meta name= "author " content= " " />
<meta name= "keywords " content= " " />
<meta name= "description " content= " " />
</head>
<body>
<SCRIPT>
function fnGetId(){
var a = "javascript ";
document.getElementById( "f1 ").value = a;
}
</SCRIPT>
<input type= "text " name= "name " id= "f1 ">
<INPUT TYPE= "button " VALUE= "Get Names " onclick= "fnGetId() ">
</body>
</html>
