fix: modify execution timing

packages/varlet-ui/src/snackbar/core.vue

@@ -5,7 +5,7 @@
 				<slot>{{ content }}</slot>
 			</div>
 			<div class="var-snackbar__action">
-				<var-icon v-if="iconName" :transition="200" :name="iconName" />
+				<var-icon v-if="iconName" :transition="hasMounted ? 200 : 0" :name="iconName" />
 				<var-loading v-if="type === 'loading'" :type="loadingType" :size="loadingSize" />
 				<slot name="action" />
 			</div>
@@ -33,6 +33,7 @@ export default defineComponent({
 	props,
 	setup(props) {
 		const timer: Ref = ref(null)
+		const hasMounted: Ref<boolean> = ref(false)
 		const { zIndex } = useZIndex(props, 'show', 1)
 		useLock(props, 'show', 'lockScroll')
 
@@ -80,6 +81,7 @@ export default defineComponent({
 		watch(
 			() => props._update,
 			() => {
+				hasMounted.value = true
 				clearTimeout(timer.value)
 				timer.value = setTimeout(() => {
 					props['onUpdate:show']?.(false)
@@ -100,6 +102,7 @@ export default defineComponent({
 			snackbarStyle,
 			snackbarClass,
 			iconName,
+			hasMounted,
 		}
 	},
 })