Save changes to class properties with dot notation

2016 9 15
1 个回答
回答已采纳
更新时间：2016 9 15
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0 个投票

Let's say I have a simple class like this one:
classdef MyData
properties
Data = 0;
end
methods
function obj=addData(obj,val)
obj.Data = obj.Data + val;
disp(obj.Data)
end
end
end
If I call twice
a=addData(a,1);
the output is
>> a=addData(a,1);
1
>> a=addData(a,1);
2
however if I use the dot notation the behavior changes like this
>> a.addData(1)
1
>> a.addData(1)
1
The "Data" properties is not updated after the call. Is it possible to use the dot notation and store the value in the object?
Thank you very much

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 采纳的回答

per isakson
per isakson 2016-9-15
编辑：per isakson 2016-9-15

1 个投票

MyData is a value class. Try
a = a.addData(1)
and
classdef MyData < handle
and see Comparison of Handle and Value Classes

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