[lua]实现一个js.bind玩玩

function f(x, y, z) {
return x + y + z;
}

var f1 = f.bind(null, 1);
f1(2,3) === 6;

function bind(f,...)
local args={...}
return function(...)
local local_arg={...}
local arg = {}
for _,v in pairs(args) do table.insert(arg, v) end
for _,v in pairs(local_arg) do table.insert(arg,v) end
return f(unpack(arg))
end
end

function f(x,y,z)
return x+y+z
end

local f1 = bind(f,1)
print(f1(2,3)) //will print 6