添加可选包：build-essential ffmpeg

setup.sh

@@ -38,6 +38,7 @@ for choice in $choices; do
         ;;
     4)
         echo "即将安装htop cbm tree tmux ufw curl wget lsof nano sudo git git-lfs 7z"
+        echo "可选: build-essential ffmpeg"
         read -p "额外安装（包名）: " app
         apt update -y
         apt install -y htop cbm tree tmux ufw curl wget lsof nano sudo git git-lfs $app