Replace letter with dot

5 次查看（过去 30 天）
Dos Zhu
Dos Zhu 2020-5-4
评论： Star Strider 2020-5-4
Does anybody know how to replace first letter as well as same subsequent letters of a word with dot in a string?
For instance:
'MOMENT AND INITIALIZATION'
i need: '.O.ENT AND .N.T.AL.ZAT.ON'
To note, I need all white spaces to be saved as they are.

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回答（1 个）

Star Strider
Star Strider 2020-5-4
Try this:
str = 'MOMENT AND INITIALIZATION';
newstr = str;
old = {'M','I'}';
for k = 1:numel(old)
newstr = strrep(newstr, old(k),{'.'});
end
newstr
producing:
newstr =
1×1 cell array
{'.O.ENT AND .N.T.AL.ZAT.ON'}
  2 个评论
Dos Zhu
Dos Zhu 2020-5-4
what if I prompt user to enter words?
Star Strider
Star Strider 2020-5-4
First, I would use the inputdlg function for tthat.
Second, the strrep function is case-sensitive, so you would need to account for that. It would likely be easiest to use the upper function to convert the input string to all uppercase, then do the replacements.

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