把文件上傳按鈕修改成自己喜歡的樣式

 <form action="http://localhost:8080/GD/UploadAction_execute.action" method="post" enctype="multipart/form-data" name="uploadfile">
 <input type="file" name="my" id="file" value="瀏覽" style="display: none;" 
 onchange="document.uploadfile.filePath.value=this.value"/>
 <input type="text" name="filePath" id="filePath"/>
 <input type="button" value="瀏覽..." onclick="document.uploadfile.my.click()"/><br>
 <input type="submit" value="上傳" id="shangchuan">
 </form>