readStream.path

• <string> | <Buffer>

流正在读取的文件的路径，如 fs.createReadStream() 的第一个参数中所指定。 如果 path 作为字符串传入，则 readStream.path 将是字符串。 如果 path 作为 <Buffer> 传入，则 readStream.path 将是 <Buffer>。

• <string> | <Buffer>

The path to the file the stream is reading from as specified in the first argument to fs.createReadStream(). If path is passed as a string, then readStream.path will be a string. If path is passed as a <Buffer>, then readStream.path will be a <Buffer>.