修改

src/components/sale/editOrder-form.vue

@@ -71,7 +71,7 @@
         <!-- <q-input filled stack-label :dense="false" v-model="OrderMsg.PerDiscountMoney" :disable="true"
           class="col-12 q-pb-lg" label="优惠金额(每人)" :hint="'总优惠金额：'+(OrderMsg.PerDiscountMoney*OrderMsg.GuestNum)" /> -->
 
-        <q-input filled stack-label :dense="false" v-model="OrderMsg.DiscountMoney" disable
+        <q-input filled stack-label :dense="false" v-model="OrderMsg.DiscountMoney" @keyup.native="checkPrice(OrderMsg,'DiscountMoney')"
           class="col-12 q-pb-lg" label="优惠金额"  />
 
         <template v-if="modityOrderType==3">