设计预警通知优化

mes-ui/mes-ui-admin-vue3/src/layout/components/warnmessage.vue

@@ -1,6 +1,6 @@
 <template>
   <transition name="slide-right">
-    <div class="warn" v-if="showWarning" :draggable="true" @dragstart="onDragStart" @dragend="onDragEnd" @mousedown.prevent.stop="onMouseDown" @mousemove="onMouseMove" @mouseup="onMouseUp">
+    <div class="warn"  :class="{ 'no-data': !warnings.length }" v-if="showWarning" :style="{ display: warnings.length ? 'block' : 'none' }" :draggable="true" @dragstart="onDragStart" @dragend="onDragEnd" @mousedown.prevent.stop="onMouseDown" @mousemove="onMouseMove" @mouseup="onMouseUp">
       <div class="warntitle">
         <span class="titleText">设计预警通知</span>
         <div>