form元素需要添加 enctype="multipart/form-data"
<form id="form1" name="form1" role="form" method="post" enctype="multipart/form-data">
form元素需要添加 enctype="multipart/form-data"
<form id="form1" name="form1" role="form" method="post" enctype="multipart/form-data">