var e=`图片尺寸推荐 1200×600，图片大小不超过 1MB`;function t(e){if(!e.type.startsWith(`image/`)||e.size<=1048576)return null;let t=e.size/(1024*1024);return`单张图片不能超过 1MB（当前约 ${t>=1?`${t.toFixed(2)}MB`:`${Math.ceil(e.size/1024)}KB`}）`}export{t as n,e as t};