matlab - 从另一个静态方法中调用 matlab 静态方法

Question

是否可以从另一个静态方法调用静态方法，这两个方法属于同一个类？还是有一些我不知道的特殊语法？目前我正在尝试执行以下操作:

% Circle.m
classdef Circle
    methods (Static)
        function p = getPi
            p = 3.14;
        end

        function a = getArea( r )
            a = r * Circle.getPi * Circle.getPi;
        end
    end
end

然后:

>> Circle.getPi  
ans =  
3.1400  

>> Circle.getArea(123)  
Undefined variable "Circle" or class "Circle.getPi".  

Error in utils.Circle.getArea (line 8)  
            a = r * Circle.getPi * Circle.getPi; 

Answer 1

参见 Referencing Package Members Within Packages 部分在名为 "Packages Create Namespaces" 的文档页面中.基本上它说来自类实例的普通方法不需要包前缀，但是对于静态方法它是必需的。显然，这甚至适用于从另一个类方法调用静态方法!

All references to packages, functions, and classes in the package must use the package name prefix, unless you import the package. (See Importing Classes.) For example, call a package function with this syntax:

z = mypack.pkfcn(x,y);

Note that definitions do not use the package prefix. For example, the function definition line of the pkfcn.m function would include only the function name:

[snip]

Calling class methods does not require the package name because you have an instance of the class:

obj.myMethod(arg) or  
myMethod(obj,arg)

A static method requires the full class name:

mypack.myClass.stMethod(arg)