cra全局安装 cra npm install cra -g全局安装 create-react-app 要求：版本小于 3.2.0npm install create-react-app@3.2.0运行cracra5 dependencies3 versionscommandercompare-versionsinquirermomentshelljs0.0.35 years ago0.0.25 years ago0.0.15 years ago