时间范围	<{input type="time" name="start_time" id="start_time" vtype="required" /}>至 <{input type="time" name="end_time" id="end_time" vtype="required" /}>
<{t}>进度：<{/t}>	0%

<{button id="down1" class="btn-primary" label=$___b2c="开始"|t:'b2c' type="button"}> <{button id="down2" class="btn-primary" label=$___b2c="下载中"|t:'b2c' type="button" style="display:none;"}> <{button type="button" class="btn-secondary" id="return-btn" label="关闭" onclick="javascript:this.getParent('.dialog').retrieve('instance').close();"}>