another way to break without using the command 'break'
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Hi all,
In this code i want to know another way to break the code withoug using the 'break command': This break should happen when the remaining liquid in a silo is less than the volume of a container
function [FullContainers,RemainingLiquid] = myFunction(VolumeOfSilo)
% myFunction generates the number of containers that are filled by the
% liquid in a silo of a given volume and the Liters remaining in the silo
% after all the containers have been filled
% >> syntax >> [NoContainer,RemainingLiquid] = myFunction(volumeOfSilo)
c = 0 ; % initially we dont have any containers
vol = zeros() ; % preallocate for speed
while c >= 0
c = c + 1; % keep bringing containers
vol(c) = 280 + 150*rand ; % determine the volume of the container
if VolumeOfSilo >= vol(c)
RemainingLiquid = VolumeOfSilo - vol(c) ; % remaining liters after pouring
VolumeOfSilo = RemainingLiquid; % update the liters remaining in silo
FullContainers = c ;
elseif VolumeOfSilo < vol(c) %
FullContainers = 0 ;
RemainingLiquid = VolumeOfSilo ;
end
if VolumeOfSilo < vol(c)
break
end
end
end
采纳的回答
Allen
2020-1-25
To stop the while loop you need to make sure that none of the conditions are met, else it will keep running. By changing || to && you are saying that both conditions need to be met in order to continue looping.
term_while = true; % flag variable
c = 0 ; % initially we dont have any containers
vol = zeros() ; % preallocate for speed
% while c >= 0 || term_while
while c >= 0 && term_while
...
if VolumeOfSilo < vol(c) % help me to avoid using break
% break
term_while = false; % set flag variable to false so the loop stops
end
end
Alternatively, you can use your orginal code but replace break with c = -1. This will prevent the condition for continuing the while-loop from being met.
c = 0 ; % initially we dont have any containers
vol = zeros() ; % preallocate for speed
while c >= 0
c = c + 1; % keep bringing containers
...
if VolumeOfSilo < vol(c)
c = -1;
end
end
However, looking over the intention of your function, you might consider using the following instead.
function [FullContainers,RemainingLiquid] = myFunction(VolumeOfSilo)
% myFunction generates the number of containers that are filled by the
% liquid in a silo of a given volume and the Liters remaining in the silo
% after all the containers have been filled
% >> syntax >> [NoContainer,RemainingLiquid] = myFunction(volumeOfSilo)
i = 0; % loop counter
vol = 0; % preallocate for speed
% While-loop creates a random number of volumes until the total volume is
% greater than the Volume of the Silo. Also assigned a max number of
% iterations to allow the while-loop to run as a safety measure.
while sum(vol)<=VolumeOfSilo && i<1e5
i = i+1; % increment loop counter
vol(i) = 280+150*rand ; % determine the volume of the container
end
% Counter the number of elements in the vol variable and determine the
% amount of remaining fluid. Since we set the while-loop to end after the
% silo volume is exceeded, we need to ignore the last container volume
% in the remaining steps.
FullContainers = numel(vol)-1;
RemainingLiquid = VolumeOfSilo-sum(vol(1:end-1));
end
更多回答（1 个）
Bhaskar R
2020-1-25
You can set a flag variable to terminate while loop without using break keyword
term_while = true; % flag variable
c = 0 ; % initially we dont have any containers
vol = zeros() ; % preallocate for speed
while c >= 0 || term_while
c = c + 1; % keep bringing containers
vol(c) = 280 + 150*rand ; % determine the volume of the container
if VolumeOfSilo >= vol(c)
RemainingLiquid = VolumeOfSilo - vol(c) ; % remaining liters after pouring
VolumeOfSilo = RemainingLiquid; % update the liters remaining in silo
FullContainers = c ;
end
if VolumeOfSilo < vol(c) % help me to avoid using break
% break
term_while = false; % set flag variable to false so the loop stops
end
end
end
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