如何将数字自动转化为​字母？比如输入ABC​，输出123

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芊帆 张
芊帆 张 2022-4-27
回答： Lokesh 2023-9-29
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CXD
CXD 2022-4-28
x = ‘ABC’；
y = x-'A'+'1'

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回答（1 个）

Lokesh
Lokesh 2023-9-29
Hi,
I understand that you want to convert string to a number.
To convert letters to numbers in MATLAB, you can leverage the ‘ASCII’ values of the characters. In ‘ASCII’, the characters 'A' to 'Z' have sequential decimal values from 65 to 90. By subtracting the ASCII value of 'A' from a letter's ASCII value, you can obtain its corresponding number.
Here's an example of how you can convert a string of letters to their corresponding numbers:
% Convert a string of letters to numbers
% The string of letters to convert
letters = 'ABC';
% Convert the letters to numbers [1,2,3]
numbers = double(letters) - 64;
% Convert the numbers to a string without spaces ‘123’
str = sprintf('%d', numbers)
You can refer to the below documentation to know more about usage of “sprintf”:
https://in.mathworks.com/help/matlab/ref/sprintf.html
I hope you find this helpful.
Best Regards,
Lokesh

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