下面这句话在没有获得到值的时候总是不能返回 "0 ",大哥们有什么意见啊?
string wgt = (new BRL.WorkShop.WorkShopBR()).GetResultByCondition( "ISNULL(GYLCK_Weight,0) ",PlanDS.GYLCKC_TABLE, "GYLCK_VatNO = ' "+vatno+ " ' ");
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what 's meaning?