{if $op != 'preview'} {template 'common/header'} {else} {template 'web/video/no-require-header'} {/if} {template 'web/video/video-header'} {if $op == 'display'} {template 'web/aliyunOSS/display'} {elseif $op=='upAliyunOSS'} {template 'web/aliyunOSS/upAliyunOSS'} {elseif $op=='preview'} {template 'web/aliyunOSS/preview'} {/if} {template 'common/footer'}