1 #!/usr/bin/python
   2 # -*- coding: iso-8859-1 -*-
   3 
   4 # Exemplos retirados do artigo: Python Cheat Sheet
   5 # http://www.yukoncollege.yk.ca/~ttopper/COMP118/rCheatSheet.html
   6 print "s = \"Hello World!\""
   7 s = "Hello World!"
   8 print "suffix = \".py\""
   9 suffix = ".py"
  10 print "prefix = \"py_\""
  11 prefix = "py_"
  12 print "substring = \"lo\""
  13 substring = "lo"
  14 print "chars = \"H\""
  15 chars = "H"
  16 print "list = []"
  17 list = []
  18 
  19 # Testing string contents:
  20 print ">>> print \"Hello World!\".isalnum()"
  21 print "Hello World!".isalnum()
  22 print ">>> print \"Hello World!\".isalpha()"
  23 print "Hello World!".isalpha()
  24 print ">>> print \"Hello World!\".isdigit()"
  25 print "Hello World!".isdigit()
  26 print ">>> print \"Hello World!\".isspace()"
  27 print "Hello World!".isspace()
  28 print ">>> print \"Hello World!\".islower()"
  29 print "Hello World!".islower()
  30 print ">>> print \"Hello World!\".isupper()"
  31 print "Hello World!".isupper()
  32 print ">>> print \"Hello World!\".istitle()"
  33 print "Hello World!".istitle()
  34 print ">>> print \"Hello World!\".endswith( suffix )"
  35 print "Hello World!".endswith( suffix )
  36 print ">>> print \"Hello World!\".startswith( prefix )"
  37 print "Hello World!".startswith( prefix ) 
  38 
  39 # Finding things in strings:
  40 print ">>> print \"Hello World!\".count( substring )"
  41 print "Hello World!".count( substring )
  42 print ">>> print \"Hello World!\".find( substring )"
  43 print "Hello World!".find( substring )
  44 print ">>> print \"Hello World!\".index( substring )"
  45 print "Hello World!".index( substring )
  46 print ">>> print \"Hello World!\".rfind( substring )"
  47 print "Hello World!".rfind( substring )
  48 print ">>> print \"Hello World!\".rindex( substring )"
  49 print "Hello World!".rindex( substring )
  50 
  51 # Changing stringprint s. Remember that strings are immutable so to make a change "stick" you have to do, e.g. s = print s.title().
  52 print ">>> print \"Hello World!\".swapcase()"
  53 print "Hello World!".swapcase()
  54 print ">>> print \"Hello World!\".upper()"
  55 print "Hello World!".upper()
  56 print ">>> print \"Hello World!\".lower()"
  57 print "Hello World!".lower()
  58 print ">>> print \"Hello World!\".title()"
  59 print "Hello World!".title()
  60 print ">>> print \"Hello World!\".capitalize()"
  61 print "Hello World!".capitalize()
  62 print ">>> print \"Hello World!\".center(30)"
  63 print "Hello World!".center(30)
  64 print ">>> print \"Hello World!\".ljust(10)"
  65 print "Hello World!".ljust(10)
  66 print ">>> print \"Hello World!\".rjust(15)"
  67 print "Hello World!".rjust(15)
  68 print ">>> print \"Hello World!\".strip()"
  69 print "Hello World!".strip()
  70 print ">>> print \"Hello World!\".lstrip( chars )"
  71 print "Hello World!".lstrip( chars )
  72 print ">>> print \"Hello World!\".rstrip( chars )" 
  73 print "Hello World!".rstrip( chars ) 
  74 # Mudança didatica.
  75 chars = "Hel"
  76 print ">>> print \"Hello World!\".lstrip( chars )"
  77 print "Hello World!".lstrip( chars )
  78 print ">>> print \"Hello World!\".rstrip( chars )" 
  79 print "Hello World!".rstrip( chars ) 
  80 # Nova mudança didatica.
  81 chars = "ld!"
  82 print ">>> print \"Hello World!\".lstrip( chars )"
  83 print "Hello World!".lstrip( chars )
  84 print ">>> print \"Hello World!\".rstrip( chars )" 
  85 print "Hello World!".rstrip( chars ) 
  86 
  87 # String to list:
  88 
  89 print ">>> list = \"Hello World!\".split()"
  90 print ">>> print list"
  91 list = "Hello World!".split() 
  92 print list
  93 
  94 # List to string:
  95 print ">>> print s.join( list ) # where s is the string to join the elements of list with."
  96 print s.join( list ) # where s is the string to join the elements of list with.