Lua基础(二)——表

标签：style   blog   strong   数据   io   2014   

表

a = { }
b = { x = 1, ["hello, "] = "world!" }
a.astring = "ni, hao!"
a[1] = 100
a["a table"] = b
function foo()
end
function bar()
end
a[foo] = bar
--分别穷举表a和b
for k, v in pairs(a) do
print(k, "=>", v)
end
print("----------------------------")
for k, v in pairs(b) do
print(k, "=>", v)
end

--输出结果
1	=>	100
a table	=>	table: 003FB3A0
function: 003FCBB0	=>	function: 003FCBD0
astring	=>	ni, hao!
----------------------------
hello, 	=>	world!
x	=>	1

一种简单的对象实现方式 

function CreateStudent(ID,Name)
   local Obj={id=ID,name=Name};
    function Obj:GetID()
	   return self.id;
	end
	function Obj.GetName(self)
	   return self.name;
	end
	function Obj:SetID(ID)
	   self.id=ID;
	end
	Obj.SetName=function(self,Name)
	self.name=Name
	end
	return Obj;
end

s1=CreateStudent(1,"andy");
print("s1‘id=",s1:GetID(),"s1‘name=",s1.GetName(s1))

s1:SetID(2);
s1.SetName(s1,"lili");
print("s1‘id=",s1:GetID(),"s1‘name=",s1:GetName())

--输出结果
--s1‘id=	1	s1‘name=	andy
--s1‘id=	2	s1‘name=	lili

成员方法的调用：obj:method(a1, a2, …) <==>obj.method(obj, a1, a2, ...)

简单继承

function CreateStudent(ID,Name)
   local Obj={id=ID,name=Name};
    function Obj:GetID()
	   return self.id;
	end
	function Obj.GetName(self)
	   return self.name;
	end
	function Obj:SetID(ID)
	   self.id=ID;
	end
	Obj.SetName=function(self,Name)
	self.name=Name
	end
	return Obj;
end

function CreateClassStudent(ID,Name,Class)
   local obj=CreateStudent(ID,Name);
    obj.class=4;
   function obj:GetClass()
      return self.class;
   end
   function obj.SetClass(self,class)
      self.class=class;
   end
   return obj;
end

s2=CreateClassStudent(1,"andy",5);
print("s2‘class=",s2.GetClass(s2))

Lua基础(二)——表,码迷,mamicode.com

Lua基础(二)——表

标签：style   blog   strong   数据   io   2014   

原文地址：http://blog.csdn.net/shimazhuge/article/details/24836831