“““
File:?abstractcollection.py
Author:?Ken?Lambert
“““

class?AbstractCollection（object）:
????“““An?abstract?collection?implementation.“““

????#?Constructor
????def?__init__（self?sourceCollection?=?None）:
????????“““Sets?the?initial?state?of?self?which?includes?the
????????contents?of?sourceCollection?if?it‘s?present.“““
????????self._size?=?0
????????if?sourceCollection:
????????????for?item?in?sourceCollection:
????????????????self.add（item）

????#?Accessor?methods
????def?isEmpty（self）:
????????“““Returns?True?if?len（self）?==?0?or?False?otherwise.“““
????????return?len（self）?==?0
????
????def?__len__（self）:
????????“““Returns?the?number?of?items?in?self.“““
????????return?self._size

????def?__str__（self）:
????????“““Returns?the?string?representation?of?self.“““
????????return?“[“?+?“?“.join（map（str?self））?+?“]“

????def?__add__（self?other）:
????????“““Returns?a?new?bag?containing?the?contents
????????of?self?and?other.“““
????????result?=?type（self）（self）
????????for?item?

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件??????21508??2013-10-09?11:49??ExamplePrograms\.DS_Store

?????文件???????6148??2013-09-10?13:17??ExamplePrograms\Ch_10_Student_Files\.DS_Store

?????文件???????1456??2013-01-08?15:25??ExamplePrograms\Ch_10_Student_Files\BST\abstractcollection.py

?????文件????????541??2013-01-08?15:46??ExamplePrograms\Ch_10_Student_Files\BST\abstractstack.py

?????文件???????2252??2013-05-12?08:27??ExamplePrograms\Ch_10_Student_Files\BST\bstinterface.py

?????文件????????265??2013-01-20?10:20??ExamplePrograms\Ch_10_Student_Files\BST\bstnode.py

?????文件???????7341??2013-09-10?13:17??ExamplePrograms\Ch_10_Student_Files\BST\linkedbst.py

?????文件???????1981??2013-01-10?12:41??ExamplePrograms\Ch_10_Student_Files\BST\linkedqueue.py

?????文件???????1930??2013-01-10?12:37??ExamplePrograms\Ch_10_Student_Files\BST\linkedstack.py

?????文件????????200??2013-01-03?20:01??ExamplePrograms\Ch_10_Student_Files\BST\node.py

?????文件???????1471??2013-05-10?11:26??ExamplePrograms\Ch_10_Student_Files\BST\testbst.py

?????文件???????6148??2013-05-12?08:56??ExamplePrograms\Ch_10_Student_Files\Case?Study\.DS_Store

?????文件???????1368??2013-05-12?08:50??ExamplePrograms\Ch_10_Student_Files\Case?Study\expressiontree.py

?????文件????????766??2013-05-12?08:11??ExamplePrograms\Ch_10_Student_Files\Case?Study\parserapp.py

?????文件???????2376??2013-05-12?08:52??ExamplePrograms\Ch_10_Student_Files\Case?Study\parsers.py

?????文件???????2320??2013-05-12?08:55??ExamplePrograms\Ch_10_Student_Files\Case?Study\scanner.py

?????文件???????1643??2013-05-12?08:53??ExamplePrograms\Ch_10_Student_Files\Case?Study\tokens.py

?????文件???????6148??2013-05-12?08:30??ExamplePrograms\Ch_10_Student_Files\Heap\.DS_Store

?????文件???????1456??2013-01-08?15:25??ExamplePrograms\Ch_10_Student_Files\Heap\abstractcollection.py

?????文件???????3312??2013-05-12?08:41??ExamplePrograms\Ch_10_Student_Files\Heap\arrayheap.py

?????文件???????1507??2013-05-12?08:26??ExamplePrograms\Ch_10_Student_Files\Heap\heapinterface.py

?????文件????????761??2013-05-10?11:13??ExamplePrograms\Ch_10_Student_Files\Heap\testheap.py

?????文件???????6148??2013-09-11?10:42??ExamplePrograms\Ch_11_Student_Files\.DS_Store

?????文件???????6148??2008-10-12?11:07??ExamplePrograms\Ch_11_Student_Files\Case?Study\.DS_Store

?????文件???????1127??2012-09-14?11:04??ExamplePrograms\Ch_11_Student_Files\Case?Study\arrays.py

?????文件???????2107??2013-05-16?14:54??ExamplePrograms\Ch_11_Student_Files\Case?Study\hashtable.py

?????文件???????2448??2013-05-16?14:56??ExamplePrograms\Ch_11_Student_Files\Case?Study\profiler.py

?????文件???????6148??2013-05-16?15:34??ExamplePrograms\Ch_11_Student_Files\Dictionary\.DS_Store

?????文件???????1456??2013-01-08?15:25??ExamplePrograms\Ch_11_Student_Files\Dictionary\abstractcollection.py

?????文件???????2284??2013-05-16?14:10??ExamplePrograms\Ch_11_Student_Files\Dictionary\abstractdict.py

............此處省略209個文件信息