修复当支付金额为0时，抵扣券选中后会变不可用

pagesOrder/quan/quan.vue

@@ -315,13 +315,21 @@
 			memberId: option.memberId
 		})
 		canDikouGoodsArr = returnNewGoodsList(order.value.detailList || [])
-		res.fullReductionCoupon = res.fullReductionCoupon.filter((v) => v.use && option.orderPrice * 1 >= v
-			.fullAmount * 1)
+		res.fullReductionCoupon = res.fullReductionCoupon.filter((v) => {
+			if(option.orderPrice<=0){
+				return false
+			}else{
+				return v.use && option.orderPrice * 1 >= v
+				.fullAmount * 1
+			}
+			
+		})
 		res.productCoupon = res.productCoupon.map(v => {
 			const calcCoup = returnProductCoupon(v, canDikouGoodsArr, user.value)
 			return {
 				...calcCoup,
-				checked: false
+				checked: false,
+				use:option.orderPrice<=0?false:v.use
 			}
 		}).filter((v) => v.use);
 		$fullReductionCoupon = res.fullReductionCoupon