安装NVM：使用curl或wget命令下载并运行NVM的安装脚本。
curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/<latest-version>/install.sh | bash
或
wget -qO- https://raw.githubusercontent.com/nvm-sh/nvm/<latest-version>/install.sh | bash
curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.1/install.sh | bash
注意：<latest-version>应替换为NVM的最新版本号，例如v0.40.1。