1. 下载安装包
链接：http://www.cmake.org/download/
下载cmake-3.14.4-Darwin-x86_64.dmg文件。
2. 安装
双击cmake-3.14.4-Darwin-x86_64.dmg进行安装。
添加cmake到命令行：
One may add CMake to the PATH: PATH="/Applications/CMake.app/Contents/bin":"$PATH" Or, to install symlinks to '/usr/local/bin', run: sudo "/Applications/CMake.app/Contents/bin/cmake-gui" --install Or, to install symlinks to another directory, run: sudo "/Applications/CMake.app/Contents/bin/cmake-gui" --install=/path/to/bin
选择第二种方法在命令窗口中输入如下：
sudo "/Applications/CMake.app/Contents/bin/cmake-gui" --instal
命令行中输入
cmake --version
反馈结果类似如下：
cmake version 3.12.0-rc1 CMake suite maintained and supported by Kitware (kitware.com/cmake).
说明cmake在命令行中即可使用。