process.env

与环境变量交互的基本 API 是 process.env，它由一个对象组成，该对象包含预先填充的用户环境变量，并且可以进行修改和扩展。

【The basic API for interacting with environment variables is process.env, it consists of an object with pre-populated user environment variables that can be modified and expanded.】

有关更多详细信息，请参阅process.env 文档。

【For more details refer to the process.env documentation.】