用计算属性，不用v-model表达式

快乐的昕的电脑

2025-10-20 bc5c06d63e328fc1aa6847bd034a55761178ed73

 components/WorkOrder.vue

@@ -82,7 +82,8 @@
            </view>
            <view class="form-item">
               <label>日停机时长(mi):</label>
               <input class="inp" type="text" v-model="todayOnlineTime-todayRunTime" disabled="true" />
               <!-- 这里用计算属性，不能用v-model表达式 -->
               <input class="inp" type="text" :value="downtimeDuration" disabled="true" />
            </view>
            <view class="form-item">
               <label>设备稼动率:</label>
@@ -182,6 +183,15 @@
            lineList: [],
         };
      },
      computed: {
         // 日停机时长 = todayOnlineTime - todayRunTime
         downtimeDuration() {
            // 取order对象中的todayOnlineTime和todayRunTime，都为分钟
            const online = Number(this.order.todayOnlineTime) || 0;
            const run = Number(this.order.todayRunTime) || 0;
            return online - run;
         }
      },
      created() {
         this.fetchData(true);
         this.sumbit();