process.throwDeprecation
process.throwDeprecation 属性表示--throw-deprecation标记是否被设置到当前Node.js进程上。
请查看 warning event 和emitWarning method 的文档，
来获取这个标记行为的更多信息。
The process.throwDeprecation property indicates whether the
--throw-deprecation flag is set on the current Node.js process. See the
documentation for the 'warning' event and the
emitWarning() method for more information about this
flag's behavior.