一个简单问题的困惑？
<html>
<head>
<SCRIPT LANGUAGE= "JavaScript ">
<!--
//-->
</SCRIPT>
</head>
<body>
<input type= "text " name= "a " value= " ">
<input type= "button " value= "Click " onclick= "？ ">
</body>
</html>
请问我如何用javascript 获得a的值？
[解决办法]
<html>
<head>
</head>
<body>
<input type= "text " name= "a " value= " ">
<input type= "button " value= "Click " onclick= "？ ">
<SCRIPT LANGUAGE= "JavaScript ">
<!--
alert(document.getElementsByName( "a ")[0].value)
//-->
</SCRIPT>
</body>
</html>
[解决办法]
document.getElementsByName( "a "),返回一,
document.getElementsByName( "a ")[0].value 的第一元素的value值