利用jquery来隐藏input type="file"

<li>
<input type="text" name="token" value = "<?php ech$_SESSION['token']; ?>">
头像：<input type="file" id="file" style="display:none;" name ="u_img" >
<img src="<?php echo $result['u_img'] ; ?>"  id = "fileimg" width="100"          height="100" style="border:1px solid #eee">
</li>

<script>
function _file(){
$('#file').click();
}
$("#fileimg").click(function(){
_file();
})
</script>