在Lua 5.2(集成在Delphi中)中使arg在varag函数中工作 [英] Getting arg to work in a varag function in Lua 5.2 (integrated in Delphi)

问题描述

使用Lua 5.2 API时，下面的代码显示为"nil"

When using the Lua 5.2 API, the code below prints "nil"

function __debug(szName, ...)
    print(type(arg));
end

__debug("s", 1, 2, 3, 4);

但是此代码在使用Lua 5.1时有效，并显示表"

But this code does work when using Lua 5.1, and prints "table"

推荐答案

如果您引用的是vararg函数，则arg表 table.pack 来如果需要，请创建arg:

If you are referring to vararg function, the arg table was deprecated already in Lua 5.1. In Lua 5.2, you can use table.pack to create arg if you need it:

function debug(name, ...)
    local arg = table.pack(...)
    print(name)
    for i=1,arg.n do
        print(i, arg[i])
    end
end

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