当调用 buf.inspect() 时返回的最大字节数。 该属性可以重写。 详见 util.inspect()

该属性是在 require('buffer') 返回的 buffer 模块上,而不是在 Buffer 全局变量或 Buffer 实例上。

Returns the maximum number of bytes that will be returned when buf.inspect() is called. This can be overridden by user modules. See util.inspect() for more details on buf.inspect() behavior.

Note that this is a property on the buffer module returned by require('buffer'), not on the Buffer global or a Buffer instance.