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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>测试</title>
<script type="text/javascript">
function test()
{
var fso, f;
var ForReading = 1, ForWriting = 2;
fso = new ActiveXObject("Scripting.FileSystemObject");
f = fso.OpenTextFile("c:\\testfile.txt", ForWriting, true);
f.WriteLine("Header");
f.Write("1234567890987654321");
f.Close();
f = fso.OpenTextFile("c:\\testfile.txt", ForReading);
alert(f.Read(6)); //"Header"
}
</script>
</head>
<body>
<input type="button" onClick="test()" value="test">
</body>
</html>