diff --git a/docker.sh b/docker.sh
index 4fff810..0e8769d 100644
--- a/docker.sh
+++ b/docker.sh
@@ -1,91 +1,51 @@
 #!/bin/bash
 
-# 默认使用国内镜像
-USE_CHINA_MIRROR="yes"
-
-# 询问用户是否使用国内镜像
-read -p "是否使用国内镜像站点安装 Docker 和 Docker Compose? [yes/no] (默认: yes): " USE_CHINA_MIRROR
-USE_CHINA_MIRROR=${USE_CHINA_MIRROR:-yes}
-
-# 设置镜像站点
-if [ "$USE_CHINA_MIRROR" = "yes" ]; then
-    DOCKER_MIRROR="https://mirrors.aliyun.com/docker-ce"
-    DOCKER_COMPOSE_URL="https://get.daocloud.io/docker/compose/releases/download"
-    echo "使用国内镜像站点安装 Docker 和 Docker Compose。"
-else
-    DOCKER_MIRROR="https://download.docker.com"
-    DOCKER_COMPOSE_URL="https://github.com/docker/compose/releases/download"
-    echo "使用官方站点安装 Docker 和 Docker Compose。"
-fi
-
-# 方法 1: 固定版本号(根据需要手动更新)
-DOCKER_COMPOSE_VERSION="v2.35.1"
-
-# 方法 2: 从阿里云镜像站点获取版本号(无需访问 GitHub)
-if [ "$USE_CHINA_MIRROR" = "yes" ]; then
-    DOCKER_COMPOSE_VERSION=$(curl -s https://mirrors.aliyun.com/docker-ce/linux/static/stable-x86_64/ | grep -oP 'docker-compose-\K.*(?=-linux-x86_64)' | tail -1)
-fi
-
-# 检测操作系统类型
-if [ -f /etc/os-release ]; then
-    . /etc/os-release
-    OS=$ID
-    VERSION=$VERSION_ID
-else
-    echo "无法检测操作系统类型"
+# 检查是否为root用户
+if [ "$(id -u)" -ne 0 ]; then
+    echo "请使用root用户或通过sudo运行此脚本"
     exit 1
 fi
 
-# 安装 Docker
-install_docker() {
-    case $OS in
-        "debian")
-            sudo apt-get update
-            sudo apt-get install -y apt-transport-https ca-certificates curl software-properties-common
-            curl -fsSL ${DOCKER_MIRROR}/linux/debian/gpg | sudo apt-key add -
-            sudo add-apt-repository "deb [arch=amd64] ${DOCKER_MIRROR}/linux/debian $(lsb_release -cs) stable"
-            sudo apt-get update
-            sudo apt-get install -y docker-ce docker-ce-cli containerd.io
-            ;;
-        "ubuntu")
-            sudo apt-get update
-            sudo apt-get install -y apt-transport-https ca-certificates curl software-properties-common
-            curl -fsSL ${DOCKER_MIRROR}/linux/ubuntu/gpg | sudo apt-key add -
-            sudo add-apt-repository "deb [arch=amd64] ${DOCKER_MIRROR}/linux/ubuntu $(lsb_release -cs) stable"
-            sudo apt-get update
-            sudo apt-get install -y docker-ce docker-ce-cli containerd.io
-            ;;
-        "centos"|"rocky"|"almalinux")
-            sudo yum install -y yum-utils
-            sudo yum-config-manager --add-repo ${DOCKER_MIRROR}/linux/centos/docker-ce.repo
-            sudo yum install -y docker-ce docker-ce-cli containerd.io
-            ;;
-        *)
-            echo "不支持的操作系统: $OS"
-            exit 1
-            ;;
-    esac
+# 询问是否使用国内镜像
+read -p "是否使用国内镜像源？(y/n，默认为n): " use_mirror
+use_mirror=${use_mirror:-n}
 
-    # 启动并启用 Docker 服务
-    sudo systemctl start docker
-    sudo systemctl enable docker
-}
+# 安装依赖
+apt-get update
+apt-get install -y \
+    apt-transport-https \
+    ca-certificates \
+    curl \
+    gnupg \
+    lsb-release
 
-# 安装 Docker Compose
-install_docker_compose() {
-    echo "正在安装 Docker Compose 版本: $DOCKER_COMPOSE_VERSION"
-    sudo curl -L "${DOCKER_COMPOSE_URL}/${DOCKER_COMPOSE_VERSION}/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
-    sudo chmod +x /usr/local/bin/docker-compose
-}
+# 添加Docker官方GPG密钥
+if [ "$use_mirror" = "y" ] || [ "$use_mirror" = "Y" ]; then
+    echo "使用国内镜像源..."
+    # 使用阿里云镜像
+    curl -fsSL https://mirrors.aliyun.com/docker-ce/linux/ubuntu/gpg | gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg
+    echo \
+      "deb [arch=amd64 signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://mirrors.aliyun.com/docker-ce/linux/ubuntu \
+      $(lsb_release -cs) stable" | tee /etc/apt/sources.list.d/docker.list > /dev/null
+else
+    echo "使用官方Docker源..."
+    curl -fsSL https://download.docker.com/linux/ubuntu/gpg | gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg
+    echo \
+      "deb [arch=amd64 signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu \
+      $(lsb_release -cs) stable" | tee /etc/apt/sources.list.d/docker.list > /dev/null
+fi
 
-# 主函数
-main() {
-    install_docker
-    install_docker_compose
+# 安装Docker引擎
+apt-get update
+apt-get install -y docker-ce docker-ce-cli containerd.io
 
-    echo "Docker 和 Docker Compose 安装完成！"
-    docker --version
-    docker-compose --version
-}
+# 安装Docker Compose
+COMPOSE_VERSION=$(curl -s https://api.github.com/repos/docker/compose/releases/latest | grep '"tag_name":' | sed -E 's/.*"([^"]+)".*/\1/')
+curl -L "https://github.com/docker/compose/releases/download/${COMPOSE_VERSION}/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
+chmod +x /usr/local/bin/docker-compose
 
-main
\ No newline at end of file
+# 验证安装
+docker --version
+docker-compose --version
+
+echo "Docker和Docker Compose安装完成！"
\ No newline at end of file