if string is abc return value
显示 更早的评论
Hi.
I have filename is string and then I want to find specific name.
if filename have ' a ' xxx = 1
if filename have ' b ' xxx = 2
if filename have ' c ' xxx = 3
thank you.
7 个评论
Jan
2019-4-9
Please explain more details. What does "filename have ' a '" mean? Start with an 'a' or contain an 'a' anywhere?
if filename(1) == 'a'
or
if any(filename == 'a')
Jassy
2019-4-9
Jan
2019-4-9
With the space between the "a" and the ".jpg"? What should happen for "b#####a .jpg"? Is "#" a digit? Please do not let the readers guess the details.
Jassy
2019-4-9
Adam Danz
2019-4-9
So, it's always the last letter of the filename?
采纳的回答
Jan
2019-4-9
Maybe:
[fPath, fName, fExt] = fileparts(filename);
if endsWith(fName, 'a ') % With the space as in your example
xxx = 1;
elseif endsWith(fName, 'b ')
xxx = 2;
... etc
end
Or:
[fPath, fName, fExt] = fileparts(filename);
switch fname(end-1) % Again assuming you mean the 2nd last character
case 'a'
xxx = 1;
case 'b'
xxx = 2
... etc
otherwise
error('Unexpected charatcer')
end
更多回答（1 个）
Adam Danz
2019-4-9
The cell array 'key' lists all possible last-characters and the order determines the value.
filename = 'Z2q0002b.jpg';
[~, fName] = fileparts(filename);
key = {'a' 'b' 'c'};
xxx = find(strcmp(key, fName(end)));
xxx =
2
类别
在 帮助中心 和 File Exchange 中查找有关 Thermal Analysis 的更多信息
Translated by 
