学校壁纸优化

src/views/schoolSection/setting/wallpaper.vue

@@ -635,6 +635,7 @@ export default {
           }
           if (this.wallpaperInfo.deviceids.length === 0) {
             this.$Message.error("请选择设备!");
+            return;
           }
           this.wallpaperInfo.show = false;
           let form = {