命名空间可以理解为专门的内存分区，在MATLAB面向对象编程中，命名空间通常通过包文件夹来实现。包文件夹是以+开头的，简称为包。
创建以下包结构：
├─+Pack1
│ MyClassA.m
│ MyClassB.m
│
└─+Pack2
MyClassA.m
MyClassB.m
Pack1中文件中的代码分别如下：
MyClassA.m
classdef MyClassA
properties
age;
hight;
end
methods
function obj = MyClassA(a,h)
obj.age = a;
obj.hight = h;
end
function Show(obj)
disp(['age for ClassA in pack1: ',num2str(obj.age)]);
disp(['hight for ClassA in pack1: ',num2str(obj.hight)]);
end
end
end
MyClassB.m
classdef MyClassB
properties
age;
hight;
end
methods
function obj = MyClassB(a,h)
obj.age = a;
obj.hight = h;
end
function Show(obj)
disp(['age for ClassB in pack1: ',num2str(obj.age)]);
disp(['hight for ClassB in pack2: ',num2str(obj.hight)]);
end
end
end
Pack2中文件代码如下：
MyClassA.m
classdef MyClassA
properties
age;
hight;
end
methods
function obj = MyClassA(a,h)
obj.age = a;
obj.hight = h;
end
function Show(obj)
disp(['age for ClassA in pack2: ',num2str(obj.age)]);
disp(['hight for ClassA in pack2: ',num2str(obj.hight)]);
end
end
end
MyClassB.m
classdef MyClassB
properties
age;
hight;
end
methods
function obj = MyClassB(a,h)
obj.age = a;
obj.hight = h;
end
function Show(obj)
disp(['age for ClassB in pack2: ',num2str(obj.age)]);
disp(['hight for ClassB in pack2: ',num2str(obj.hight)]);
end
end
end
使用这些类构建对象并并简单执行方法过程如下：
>> A1 = Pack1.MyClassA(12,170)
A1 =
MyClassA withproperties:
age: 12
hight: 170
>> B1 = Pack1.MyClassB(1,2)
B1 =
MyClassB withproperties:
age: 1
hight: 2
>> A1.Show()
age for ClassA in pack1: 12
hight for ClassA in pack1: 170
>> B1.Show()
age for ClassB in pack1: 1
hight for ClassB in pack2: 2
>> A2 = Pack2.MyClassA(2,1)
A2 =
MyClassA withproperties:
age: 2
hight: 1
>> A2.Show()
age for ClassA in pack2: 2
hight for ClassA in pack2: 1
>> B2 = Pack2.MyClassB(2,2)
B2 =
MyClassB withproperties:
age: 2
hight: 2
>> B2.Show()
age for ClassB in pack2: 2
hight for ClassB in pack2: 2
>>
简单小结：
1，使用包管理的类在使用的时候需要加包的名字；
2，不同包中可以有相同名称的类；
3，不同包中相同名称类可以不同；
4，不同包中自然也可以有不同名称的类；
