php异步上传文件

<form class="upload_pic_wrap" name="registerPerFrom" target="upload_file" enctype="multipart/form-data" method="POST" action="<?=UrlService::buildWeb("/upload/pic");?>">    <div class="upload_wrap pull-left">       <i class="fa fa-upload fa-2x"></i>       <input type="file" name="licensePhoto" accept="image/png, image/jpeg, image/jpg,image/gif">    </div></form><iframe class="hide" name="upload_file"></iframe><script>    $('[name=registerPerFrom] input[name=licensePhoto]').change(function () {        $('[name=registerPerFrom]').submit();    });</script>

在form上面添加target属性，将提交结果返回到iframe里面