lua输出arg参数的函数（lua语言）

function unpack(t, i)

    i = i or 1

    if t[i] then

       return t[i], unpack(t, i + 1)

    end

end

function fwrite(fmt, ...)

    return io.write(string.format(fmt, unpack(arg)))

end

function myfunc(...)

x1,x2,x3,x4 = unpack(arg)

fwrite("%s%s%s%s\n",x1,x2,x3,x4)

return arg[1]

end

myfunc("s1","s2","s3","s4")