消毒开始时，调用消毒开始失败需要弹框显示错误信息，并且不跳转到消毒处理页面

src/components/Operator.vue

@@ -487,6 +487,7 @@ import { useOperatorStore, useWebSocketStore, useSettingStore } from '@/store'
 import { startDisinfectionJSON, getStateJSON } from '@/mock/command'
 import { showSuccessToast, showFailToast } from 'vant'
 import { time_To_hhmmss } from '@/utils'
+import MyModal from '../utils/MyModal'
 
 const operatorStore = useOperatorStore()
 const webSocketStore = useWebSocketStore()
@@ -570,20 +571,29 @@ const startDisinfect = () => {
   realStart()
 }
 
-const realStart = () => {
-  localStorage.setItem('logVal', logVal.value)
-  if (
-    operatorStore.disinfectStatus == 0 ||
-    operatorStore.disinfectStatus == 5
-  ) {
-    localStorage.removeItem('bin')
-    localStorage.removeItem('envir1')
-    localStorage.removeItem('envir2')
-    webSocketStore.sendCommandMsg(
-      startDisinfectionJSON(parseInt(logVal.value), parseInt(roomSize.value)),
-    )
-    props.changeShowOperator(false)
-  }
+// 开始消毒
+async function realStart() {
+    operatorStore.updateShowStartReady(true)
+    localStorage.setItem('logVal', logVal.value)
+    if ( operatorStore.disinfectStatus == 0 || operatorStore.disinfectStatus == 5 ) {
+        localStorage.removeItem('bin')
+        localStorage.removeItem('envir1')
+        localStorage.removeItem('envir2')
+
+        try {
+            await webSocketStore.call('startDisinfection', {
+                loglevel : parseInt(logVal.value),
+                roomVolume : parseInt(roomSize.value),
+            });
+        } catch ( e ) {
+            operatorStore.updateShowStartReady(false)
+            await MyModal.error(`无法开始消毒 : ${e.message || e}`);
+            return ;
+        }
+
+        operatorStore.updateShowStartReady(false)
+        props.changeShowOperator(false)
+    }
 }
 
 const showLogPicker = () => {