Find a letter's alphabetical score [closed]

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Closed 4 years ago.

What would be the right way to find the location of a character within the alphabet? For example:

"A".find_score # => 1
"C".find_score # => 3

回答1:

"A".ord

returns 65, the numeric code for "A", which is what the alphabet starts at. If you want it to start at 1 you could just subtract 64:

def get_code(c)
  c.upcase.ord - 'A'.ord + 1
end

which works like:

get_code('A') # 1
get_code('B') # 2
get_code('C') # 3

来源：https://stackoverflow.com/questions/33747126/find-a-letters-alphabetical-score