答复: Re: Maybe I found a bug in function unpack.

[hei.minglei@...]

lua-l-bounces@lists.lua.org wrote on 2011-09-06 11:56:17:

> On Mon, Sep 5, 2011 at 21:42,  <hei.minglei@zte.com.cn>
wrote:
> >
> > Lua 5.1.4  Copyright (C) 1994-2008 Lua.org, PUC-Rio
> >
> >> a={1,2,3}
> >> b={9,8,7}
> >> c={unpack(a),unpack(b)}
> >> =#c
> > 4
> >> for _,v in ipairs(c) do print(v) end
> > 1
> > 9
> > 8
> > 7
> >>
> >
> > I think the variable c should be {1,2,3,9,8,7}, doesn't it?
> >
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> 
> Nope. When you write:
> c = {unpack(a), unpack(b)}
> Since unpack(a) is not the last item in the list, only its first
> return value is added to the table. It is a bit confusing...
> 
> -- 
> Sent from my toaster.
> 
> 
Eh, I see.

I thought this rule only applies to function before.
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