js的数组

<html>
	<head>
		<title>HTML示例</title>
		<style type="text/css">
		
		</style>
	</head>
	<body>
		<script type="text/javascript">
	//	var arr=[1,2,3];
	//	alert(arr);
		
	/*	var arr=new Array(3);
		arr[0]="0";
		arr[1]="1";
		arr[2]="2";
		alert(arr);*/
		
		var arr=new Array("1","2","3");
		alert(arr);
		
		</script>
	</body>
</html>
/*******************************************************************************/
<html>
	<head>
		<title>HTML示例</title>
		<style type="text/css">
		
		</style>
		<script type="text/javascript">
		var  input1=document.getElementById("nameid");
		alert(input1.value);
		</script>
		
		
	</head>
	<body>
		<input type="text" name="name" id="nameid" value="aaa"/>
		

	</body>
	

</html>