例如 ${if(len(日期) == 0,"","and DATE < '" +"Year-Month-day"+ "' ")}
Year/Month/day 是对应的三个参数,这一段语法帆软里怎么写
${if(len(日期) == 0,"","and DATE < '" +date(Year,Month,day)+ "'")}
DATEINMONTH(DATE(Year,Month,1),-1)
${if(len(日期) == 0,"","and DATE < '" +Year+"-"+Month+"-"+day+ "'")}