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Cis 122 introduc2on to programming spring 2013

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Unformatted text preview: >>> x = 1 >>> a = double(x + 1) + double(x + 2) >>> x >>> a CIS 122 Introduc2on to Programming Spring 2013 Another data type  ­ Strings CIS 122 Introduc2on to Programming Spring 2013 Another data type  ­ Strings >>> “97403” ‘97403’ >>> ‘hello, world’ ‘hello, world’ CIS 122 Introduc2on to Programming Spring 2013 Why Func2ons? CIS 122 Introduc2on to Programming Spring 2013 Another data type  ­ Strings >>> “97403” ‘97403’ >>> type(“97403”) <class 'str'> CIS 122 Introduc2on to Programming Spring 2013 Another data type  ­ Strings >>> 97403 97403 >>> Lincoln < error > 2 4/16/13 CIS 122 Introduc2on to Programming Spring 2013 CIS 122 Introduc2on to Programming Spring 2013 Another data type  ­ Strings Another data type – Strings >>> str(97403) ‘97403’ >>> “Lincoln” ‘Lincoln’ •  string operators and func2ons CIS 122 Introduc2on to Programming Spring 2013 CIS 122 Introduc2on to Programming Spring 2013 String operators + and * are overloaded operators >>> “try” + “this” >>> “try this” * 4 + “ok” Strings are sequences of characters •  strings are sequences •  string methods “hello, world” 0 1 2 3 4 5 6 7 8 9 10 11 &...
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