Lua学习教程之 可变參数数据打包与解包

利用table的pack与unpack进行数据打包与解包。測试代码例如以下:

print("Test table.pack()----------------");

function printTable ( t )
	if type(t) == "table" then
		for k,v in pairs(t) do
			printTable(v);
		end
	else
		print(t);
	end
end

local packData =function( ... )

	local arg = table.pack(...);

 	--arg.n 得到可变部分的參数的个数
 	-- print("arg.n:", arg.n)

 	for k,v in pairs(arg) do
 		print("----------------");
 		print(k,v);
 		printTable(v);
 		print("----------------");
 	end

    return arg;
end

packData({type=100,param={"param1", "param2", "param3"}});
-- packData("param1", "param2", "param3","param4","param5");

print("\nTest table.unpack()----------------");
local data = {"AA", "BB", "CC", "DD"}
print(table.unpack(data))
print(table.unpack(data, 2))
print(table.unpack(data, 2, 3))

打印数据: