I am trying to loop my if statement but I'm not sure how to

Question

Belle Dionido 2022-4-21

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1701255-i-am-trying-to-loop-my-if-statement-but-i-m-not-sure-how-to

回答： David Hill 2022-4-21

clc;
atomic_weight = [15.9994; 12.011; 14.00674; 32.066; 1.00794];
alanine = xlsread('lab12.xlsx','B4:F4');
arginine = xlsread('lab12.xlsx','B5:F5');
asparigine = xlsread('lab12.xlsx','B6:F6');
alaninemw = alanine*atomic_weight;
argininemw = arginine*atomic_weight;
aspariginemw = asparigine*atomic_weight;
file = input("Enter file name including file extension: \n",'s');
xlsx = 'xlsx';
while true
    if contains(file, xlsx)
        fprintf("The molecular weight of Alanine is %5f\n", alaninemw);
        fprintf("The molecular weight of Arginine is %5f\n", argininemw);
        fprintf("The molecular weight of Asparigine is %5f\n", aspariginemw);
    else
        false
    end
end

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Answer 1

David Hill 2022-4-21

1
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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1701255-i-am-trying-to-loop-my-if-statement-but-i-m-not-sure-how-to#answer_947175

在 MATLAB Online 中打开

xlsx = 'xlsx';
while true
    file = input("Enter file name including file extension: \n",'s');
    if contains(file, xlsx)
        fprintf("The molecular weight of Alanine is %5f\n", alaninemw);
        fprintf("The molecular weight of Arginine is %5f\n", argininemw);
        fprintf("The molecular weight of Asparigine is %5f\n", aspariginemw);
        break;
    end
end