配置 Vim C++开发（基本够用的）环境（Ubuntu 20.04）配置步骤安装 vimapt install vim安装 clangd-11 （官方源）apt-get install clang-11 clang-tools-11 clang-11-doc libclang-common-11-dev \libclang-11-dev libclang1-11 clang-format-11