<form onsubmit="return false;">
<div class="image-download-list-search-box">
<p>航班号</p>
<input id="schedule_code" type="text" class="image-download-list-search-input" required="required"/>
<p>日期</p>
<div class="image-download-search-box-start-time-box">
<input id="start_date" type="text" class="image-download-search-box-time" required="required">
</div>
<p>姓名</p>
<input id="name" type="text" class="image-download-list-search-input" required="required"/>
<p>证件号</p>
<input id="id_no" type="text" class="image-download-list-search-input" required="required"/>
<input onclick="image_download_show()" type="submit" class="image-download-list-search-box-button" value="查询" />
</div>
</form>
添加οnsubmit=”return false”,可以阻止表单提交,问题解决,只是感觉这样很奇怪。