adding charecters to a string

2018 12 25
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更新时间：2018 12 25
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How can I add a charecter or an element into a string.
for exaple I have the word 'sTudent' I need to add the letter B after each letter in the word
wich means I should have a an aswer 'sBTBuBdBeBnBt'
a string is just a word without spaces.
it has to be added but not after the last letter in the word as it shown in the example.
please help me!

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Walter Roberson
Walter Roberson 2018-12-25

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T = regexprep('sTudent', '.', '$&B')
or
T = 'sTudent';
T(2,:) = 'B';
T = reshape(T, 1, []);

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aya qassim
aya qassim 2018-12-25
编辑：aya qassim 2018-12-25
thank you it worked but I don't want it to add after the last letter, how can I fix that?
Walter Roberson
Walter Roberson 2018-12-25
T = regexprep('sTudent', '.(?=.)', '$&B')
or
T = 'sTudent';
T(2,:) = 'B';
T = reshape(T, 1, []);
T(end) = [];
aya qassim
aya qassim 2018-12-25
thank you very much:)

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