Python text string-by-character inversion and word-wise reversal

python text string-by- character reversal and word-wise reversal

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String-by-character reversal and word-wise reversal

first, the string is reversed by character-by-word, python provides a very useful slice, so you just need a sentence to get it done.

  >>>a=' abc EDF DEGD '
  >>>a[::-1]
  ' dged fde CBA '
  >>>

And then we look at the word reversal.

1. Similarly, we can also use slices

  >>>a=' abc EDF DEGD '
  >>>a.split () [::-1]
  [' Degd ', ' EDF ', ' abc '] 

2. native methods can be used reverse

  >>>a=' abc EDF DEGD '
  >>>Result=a.split ()
  >>>result
  [' abc ', ' EDF ', ' Degd ']
  >>>Result.reverse ()
  >>>Result
  [' Degd ', ' EDF ', ' abc ']
  >>>result="'. Join (Result)
  >>>result
  ' degd EDF ABC '
  >>>

in the process of inversion, I accidentally found Join another way to use

  >>>a=' ABCD '
  >>>"'. Join (a)
  ' a b c d '
  >>>a=' abc EDF DEGD '
  >>>"'. Join (a)
  ' A B c e d f d e G d '
  >>>

It can quickly re-add each character to the middle of our assigned character.

  >>>' + '. Join (a)
  ' a+b+c+ +e+d+f+ +d+e+g+d '
  >>>

All in all, or use the method of slicing the best, the most recommended to use

Python text string-by-character inversion and word-wise reversal