How to extract numbers from a string?

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John Doe
John Doe 2020-7-12
评论： John Doe 2020-7-12
xx = '[10,10]'
I want to convert the string xx to a number and extract the first and second value in a single line. What I am trying to do is extract the 1st and 2nd value without storing them in any variable.
Is there any solution to this? Thanks!

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madhan ravi
madhan ravi 2020-7-12
编辑：madhan ravi 2020-7-12
sscanf(xx, '[%d, %d]', [1,inf])
%or
str2double(regexp(xx, '\d*', 'match'))
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madhan ravi
madhan ravi 2020-7-12
Rather complicated:
subsref(str2double(regexp(xx,'\d*','match')), substruct('()', {2}))

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