Why does lua interpreter need = in front of variables?
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- Subject: Why does lua interpreter need = in front of variables?
- From: Matthew Wilson <matt@...>
- Date: 2007年10月16日 00:32:53 +0000 (UTC)
I am learning lua after using python for the last few years.
In the lua toplevel, why do I either have to either put a "=" in front
of a variable?
In python, the toplevel evaluates everything automatically:
$ python
Python 2.5.1 (r251:54863, May 2 2007, 16:56:35)
>>> 1 + 1
2
>>>
$ lua
Lua 5.1.2 Copyright (C) 1994-2007 Lua.org, PUC-Rio
> 1 + 1
stdin:1: unexpected symbol near '1'
> = 1 + 1
2
>
I started thinking about this, and I wondered if maybe the "=" forces
the toplevel to evaluate the object.
I'm just curious, but this detail stumps me.
Thanks in advance.
Matt