SELECT * FROM 订单 where 1=1 ${if(type=="日报"," and date(订购日期)='"+ date +"'", if(type=="月报"," and strftime('%m',订单.订购日期)='"+ month+"'"+" and strftime('%Y',订单.订购日期)='"+ year+"'"," and strftime('%Y',订单.订购日期)='"+ year+"'"))}

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原文链接：https://blog.csdn.net/sinat_40049561/article/details/79202099