LUA是动态的脚本语言
定义变量：变量名 = XXX；局部时在前面加关键字local
--为注释
定义方法：
function XXX（）
BBB
end
if语句：
if XXX then
BBB
else
CCC
end
循环语句：
for var=1, 100 do
BBB
end
table表：{} key-value式存储
e.g.：
config= {}或config = {hello="hello lu", word = "word"}
config.words = "hello"
config.num = 100
config["names"] = "zhangsan"
print(config["words"])
print(config.names)
table的遍历：
for key, var in pairs(config) do
print(key,var)
end
数组：以table的形式呈现（初始化不需要给key）数组索引从1开始
arr = {1,2,3,"hello"}
for key,var in pairs(arr) do
print(key,var)
end
arr = {}
for var=1, 100 do
table.insert(arr,1,var)
end
print(table, maxn(arr))
for key, var in pairs(arr) do
print(key,var)
end
面向对象-复制表的方式
function clone(tab)
local ins = {}
for kdy, var in pairs(tab) do
ins[key] = var
end
return ins
end
function copy(dist,tab) --继承
for key,var in pairs(tab) do
dist[key] = var
end
end
people = {}
people.sayhi = function() --对象功能的两种声明方式
print("people say hi")
end
--function people.sayhi()
print("people say hi")
end
people.new = function(name) --构造函数
local self = clone(people)
self.name = name
return self
end
local p = clone(people)
p.sayhi()
--local p = people.new("zhangsa")
p:sayhi()
man = {}
man.new = function (name)
local self = people.new(name)
copy(self,man)
return self
end
man.sayhello = function()
print("man say hello")
end
man.sayhi = function(self) --函数的重写
print("man sayhi".. self.name)
end
local m = man.new("LISI")
m:sayhi()
函数闭包的方式实现面向对象
function people(name)
local self = {}
local function init()
self.name = name
end
self.sayhi = function()
print("hello" ..self.name)
end
init()
return self
end
local p = people("zhangsan")
p:sayhi
function main(name) --继承
local self = people(name)
local function init()
end
self.sayhello = function()
print("hi".. self.name)
end
return self
end
local m = man("list")
--m.sayhello()
m：sayhi()
LUA是动态的脚本语言 定义变量：变量名 = XXX；局部时在前面加关键字local --为注释 定义方法： function XXX（） BBB end if语句： if XXX then BBB else CCC end 循环语句： for var=1, 100 do BBB end
table表：{} key-value式存储 e.g.： config= {}或config = {hello="hello lu", word = "word"} config.words = "hello" config.num = 100 config["names"] = "zhangsan" print(config["words"]) print(config.names) table的遍历： for key, var in pairs(config) do print(key,var) end
数组：以table的形式呈现（初始化不需要给key）数组索引从1开始 arr = {1,2,3,"hello"} for key,var in pairs(arr) do print(key,var) end
arr = {} for var=1, 100 do table.insert(arr,1,var) end print(table, maxn(arr)) for key, var in pairs(arr) do print(key,var) end
面向对象-复制表的方式 function clone(tab) local ins = {} for kdy, var in pairs(tab) do ins[key] = var end return ins end
function copy(dist,tab) --继承 for key,var in pairs(tab) do dist[key] = var end end
people = {} people.sayhi = function() --对象功能的两种声明方式 print("people say hi") end --function people.sayhi() print("people say hi") end people.new = function(name) --构造函数 local self = clone(people) self.name = name return self end
local p = clone(people) p.sayhi()
--local p = people.new("zhangsa") p:sayhi()
man = {} man.new = function (name) local self = people.new(name) copy(self,man) return self end man.sayhello = function() print("man say hello") end
man.sayhi = function(self) --函数的重写 print("man sayhi".. self.name) end
local m = man.new("LISI") m:sayhi()
函数闭包的方式实现面向对象 function people(name) local self = {} local function init() self.name = name end self.sayhi = function() print("hello" ..self.name) end init() return self end local p = people("zhangsan") p:sayhi
function main(name) --继承 local self = people(name) local function init() end self.sayhello = function() print("hi".. self.name) end return self end local m = man("list") --m.sayhello() m：sayhi()