improve sample download

install.sh

@@ -111,12 +111,18 @@ if [ $containerExist -eq 0 ]; then
     echo "启动相册容器中..."
     dockerStartAlbumContainer "${containerName}" "${album_path}"
     docker ps | grep "${containerName}"
-    downloadSamplesPhotos "${album_path}"
     createShortcuts "album"
     ip=`getLocalIp`
     echo "✅✅"
     echo "相册系统已成功安装，并在桌面创建了相册系统的快捷方式，可双击打开"
     echo "还可以在浏览器输入：http://${ip}:8181/ 打开"
+    echo ""
+
+    read -p "如果是第一次安装，需要下载演示图片吗？(Y/N): " confirm
+    if [[ $confirm == [yY] || $confirm == [yY][eE][sS] ]]; then
+        downloadSamplesPhotos "${album_path}"
+    fi
+
 
     echo ""
     echo "升级系统到最新版..."