1-首先，安装Homebrew.

1-First, install Homebrew.

/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

2-然后运行brew更新以确保Homebrew是最新的.

2-Then run brew update to make sure Homebrew is up to date.

brew update

3-作为一种安全措施，应运行冲煮医生以确保系统可以冲煮.运行以下命令，并遵循Brew医生的任何建议.

3-As a safe measure you should run brew doctor to make sure your system is ready to brew. Run the command below and follow any recommendations from brew doctor.

brew doctor

4-下一步，在.bash_profile或.zshrc文件中，将Homebrew的位置添加到$ PATH中.

4-Next, add Homebrew's location to your $PATH in your .bash_profile or .zshrc file.

export PATH="/usr/local/bin:$PATH"

5-下一步，安装Node(npm将与Node一起安装):

5-Next, install Node (npm will be installed with Node):

brew install node

6-要测试您的Node和npm安装，请尝试安装Grunt(可能会要求您使用sudo运行):

6-To test out your Node and npm install, try installing Grunt (you might be asked to run with sudo):

npm install -g grunt-cli