| 我想问一下，如果是下拉复选框，SELECT * FROM 订单 where 1=1 ${if(len(area) == 0,"","and 货主地区 in ('%" + area + "')")} 要设置参数为空选择全部的模糊查询，应该用哪种格式的？我这个查不出数据来 |
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