forms process

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>index page</title>
<script type="text/javascript">
    function setValue() {
        document.forms[0].userName.value = "user";
    }
</script>
</head>
<body>
<form action="" id="form">
<table>
    <tr>
        <td>用户名</td>
        <td><input type="text" value="please input values" name="userName" /> </td>
        <td><input type="button" value="reset" onclick="setValue();" /></td>
    </tr>
</table>
</form>
</body>
</html>

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