<script> $("#queryBtn").click( function(){ var s=document.form1.image.value; if(s==""){ alert("请选择图片"); document.form1.image.focus(); }else{ document.form1.submit(); }}); </script>//页面代码如下 <form name="form1" class="am-form" method="post" enctype="multipart/form-data" action="/admin/home/disAdd" data-am-validator> <input type="file" id="doc-ipt-file-1" name="image"> <button type="button" id="queryBtn" name="submit" class="am-btn am-btn-success am-radius">发布并关闭窗口</button> </form>
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