FileHandle 类

<FileHandle> 对象是数字文件描述符的对象封装。

<FileHandle> 对象的实例通过 fsPromises.open() 方法创建。

所有 <FileHandle> 对象都是 <EventEmitter>。

如果未使用 filehandle.close() 方法关闭 <FileHandle>，则它将尝试自动关闭文件描述符并触发进程警告，从而有助于防止内存泄漏。 请不要依赖此行为，因为它可能不可靠并且该文件可能未被关闭。 而是，始终显式关闭 <FileHandle>。 Node.js 将来可能会更改此行为。

A <FileHandle> object is an object wrapper for a numeric file descriptor.

Instances of the <FileHandle> object are created by the fsPromises.open() method.

All <FileHandle> objects are <EventEmitter>s.

If a <FileHandle> is not closed using the filehandle.close() method, it will try to automatically close the file descriptor and emit a process warning, helping to prevent memory leaks. Please do not rely on this behavior because it can be unreliable and the file may not be closed. Instead, always explicitly close <FileHandle>s. Node.js may change this behavior in the future.