小编use*_*047的帖子

我继承了这个,并想知道没有"媒体类型"的媒体查询是做什么的？

 @media (min-width: 768px) {
   .commentlist-item .commentlist-item {
    padding: 0 0 0 2em;
   }
}

标准语法符合www.w3schools.com/css/css3_mediaqueries.asp

  @media not|only mediatype and (expressions) {
    CSS-Code;
}

我正在做一个IF声明,想要一个完全匹配.

IF ( @a_Action <> 'Power On' AND @a_Action <> 'Power Off' AND @a_Action <> 'Reset' )
BEGIN
    -- Invalid action - an IPMI command. 
    -- Set call as failed.
    SELECT @ErrorSw = 'Y'
    SELECT @ApiResultOut = 0
    SELECT @ApiResultCodeOut = 1610
    SELECT @ApiMessageOut = 'Warning - action type "' + @a_Action + '" is not a valid server (IPMI) command.'
END

如果@a_Action参数作为"开机"发送,它将通过而不是错误输出.只有完全匹配才能通过.