How to change the case to a string so when I run the script the the string instead of the case number is shown?

Question

Frank_m 2015-4-4

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https://ww2.mathworks.cn/matlabcentral/answers/196122-how-to-change-the-case-to-a-string-so-when-i-run-the-script-the-the-string-instead-of-the-case-numbe

评论： Star Strider 2015-4-4

m=menu('select shape:', 'triangle','square','pentagon','hexagon','heptagon','octagon')
switch m
    case 1
         n=3
        angle=(n-2)*180
    case 2
        n=4
        angle=(n-2)*180
    case 3         
        n=5
        angle=(n-2)*180
    case 4
        n=6 
        angle=(n-2)*180
    case 5
        n=7
        angle=(n-2)*180
    case 6
        n=8
        angle=(n-2)*180
end
fprintf('A %-5.2f has %-5.2f sides and %-5.2f degrees\n',m,n,angle)

>> Untitled

m =

1

n =

3

angle =

180

A 1.00 has 3.00 sides and 180.00 degrees

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Answer 1

Star Strider 2015-4-4

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在 MATLAB Online 中打开

I believe you want:

fprintf('A %s has %d sides and %-5.2f degrees\n',m,n,angle)

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Frank_m 2015-4-4

You know you're stuff. Thanks

Star Strider 2015-4-4

As always, my pleasure.

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Answer 2

Mahdiyar 2015-4-4

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编辑：Mahdiyar 2015-4-4

在 MATLAB Online 中打开

Hi Frank_m

Use the following code

clc
clear
m=menu('select shape:', 'triangle','square','pentagon','hexagon','heptagon','octagon');
switch m
    case 1
        m = 'triangle'
        s = 1;
        n=3
        angle=(n-2)*180
    case 2
        m = 'square'
        s = 2;
        n=4
        angle=(n-2)*180
    case 3
        m = 'pentagon'
        s = 3;
        n=5
        angle=(n-2)*180
    case 4
        m = 'hexagon'
        s = 4;
        n=6
        angle=(n-2)*180
    case 5
        m = 'heptagon'
        s = 5;
        n=7
        angle=(n-2)*180
    case 6
        m = 'octagon'
        s = 6;
        n=8
        angle=(n-2)*180
end
fprintf('A %-5.2f has %-5.2f sides and %-5.2f degrees\n',s,n,angle)