1.count函数里写表达式 #无效写法,这样写不会判断表达式(ischecked=0),会全部列出来 SELECT cardid FROM search_detail GROUP BY cardid HAVING COUNT(ischecked=0 )>1; #正确写法,这样如果不满足表达式(ischecked=0),就会置为空,就不计算在内 SELECT cardid FROM search_detail GROUP BY cardid HAVING COUNT(ischecked=0 OR…
<style type="text/css"> /* Client-specific Styles */ #outlook a{padding:0;} /* Force Outlook to provide a "view in browser" button. */ body{width:100% !important;} .ReadMsgBody{width:100%;} .ExternalClass{wid…
一种是用js判断兼容性 // JS if ("CSS" in window && "supports" in window.CSS) { var support = window.CSS.supports("mix-blend-mode","difference"); support = support?"mix-blend-mode":"no-mix-blend-mode&quo…