flutter开发之安装dart

1、在MacOS系统中打开终端，进入到官网Get the Dart SDK | Dart

 brew tap dart-lang/dart
 brew install dart

注意：若显示没有brew，请先执行第二步骤，如下：

2、打开homebrew的官网Homebrew — The Missing Package Manager for macOS (or Linux)

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"

3、通过命令「brew info dart」查询已经安装好的dart版本号，如下：

dart-lang/dart/dart 3.1.3 already installed