Q7 Simple Pig Latin

1.问题描述

2.代码

3.总结

一、问题描述:

Description:

Move the first letter of each word to the end of it, then add 'ay' to the end of the word.

Example:

pig_it('Pig latin is cool') # igPay atinlay siay oolcay

二、代码:

** My solution **

  def pig_it(text): 
    words = text.split(' ') 
    allWords = ' '.join([i[1:] + i[0] + 'ay' for i in words if i.isalpha()])
    result = allWords 
    if not words[-1].isalpha(): 
      result = ' '.join([allWords,words[-1]]) 
    return result

这里面一定要注意判断标点符号，要熟练掌握 列表推导式，看看codewars上大神是怎样实现的

** Other Solutions **

• Best Practices

def pig_it(text): 
  lst = text.split() 
  return ' '.join( [word[1:] + word[:1] + 'ay' if word.isalpha() else word for word in lst])

• Re

import re
def pig_it(text):
  return re.sub(r'([a-z])([a-z]*)', r'\2\1ay', text, flags=re.I)

• punctuation

from string import punctuation
def pig_it(text):
  words = text.split(' ')
   return ' '.join(
      [
       '{}{}ay'.format( 
          word[1:], 
          word[0] 
        ) if word not in punctuation else word for word in words 
      ]
  )