Error 类

通用的 JavaScript <Error> 对象，不表示发生错误的任何具体情况。 Error 对象捕获"堆栈跟踪"，详细说明代码中实例化 Error 的点，并可能提供错误的文本描述。

Node.js 生成的所有错误，包括所有系统和 JavaScript 错误，都将是 Error 类的实例或继承自 Error 类。

A generic JavaScript <Error> object that does not denote any specific circumstance of why the error occurred. Error objects capture a "stack trace" detailing the point in the code at which the Error was instantiated, and may provide a text description of the error.

All errors generated by Node.js, including all system and JavaScript errors, will either be instances of, or inherit from, the Error class.