Am 29.10.16 um 16:32 schrieb BartC:
I still think a beginner would much prefer something along the lines of
'readln a,b,c' (and I still think that's more intuitive).
(The first programming exercises I ever did involved typing in integers
from the user, and sorting them or working out if they made a triangle
or whatever.
Yes, and that's exactly why they learn to produce such horrible
interfaces which do not work for a serious program. Instead, teach them
how to use the *environment* for I/O. That is, as a beginner put your
function into a file, e.g.
def is_triangle(a, b, c):
if abs(a)+abs(b) > abs(c):
print "Triangle!"
else:
print "Not a triangle"
..and then use IPython:
%run triangle.py
>>> is_triangle(1,1.7, 2)
Triangle!
>>> is_triangle(1,1.7, 8)
Not a triangle
>>>
(I know the prog is incomplete, but that's not the point)
This way you can concentrate on the algorithm and leave the I/O thing to
python. Due to the built-in readline, you can recall previous arguments,
edit them when you make mistakes, save the result (if there were any),
.... much more than your readln function can accomplish.
Christian
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