我自己用了一个简单的页面：
<body>
<form id="form1" name="form1" enctype="multipart/form-data" method="post" action="upload.action"> <form id="form1"
<body>
<form id="form1" name="form1" enctype="multipart/form-data" method="post" action="upload.action"> <form id="form1"
