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https: //docs. python. org/3/tutorial/datastructures. html

https: //docs. python. org/3/tutorial/datastructures. html

https: //docs. python. org/3/library/sqlite 3. html

https: //docs. python. org/3/library/sqlite 3. html

Некоторые объекты Пайтон >>> x = 'abc' >>> type(x) <class 'str'> >>> type(2. 5)

Некоторые объекты Пайтон >>> x = 'abc' >>> type(x) <class 'str'> >>> type(2. 5) <class 'float'> >>> type(2) <class 'int'> >>> y = list() >>> type(y) <class 'list'> >>> z = dict() >>> type(z) <class 'dict'> >>> dir(x) [ … 'capitalize', 'casefold', 'center', 'count', 'encode', 'endswith', 'expandtabs', 'find', 'format', … 'lower', 'lstrip', 'maketrans', 'partition', 'replace', 'rfind', 'rindex', 'rjust', 'rpartition', 'rsplit', 'rstrip', 'splitlines', 'startswith', 'strip', 'swapcase', 'title', 'translate', 'upper', 'zfill'] >>> dir(y) [… 'append', 'clear', 'copy', 'count', 'extend', 'index', 'insert', 'pop', 'remove', 'reverse', 'sort'] >>> dir(z) […, 'clear', 'copy', 'fromkeys', 'get', 'items', 'keys', 'popitem', 'setdefault', 'update', 'values']

class Party. Animal: x=0 def party(self) : self. x = self. x + 1

class Party. Animal: x=0 def party(self) : self. x = self. x + 1 print("Сейчас ", self. x) an = Party. Animal() an. party() $ python party 1. py

class Party. Animal: x=0 def party(self) : self. x = self. x + 1

class Party. Animal: x=0 def party(self) : self. x = self. x + 1 print("Сейчас ", self. x) an = Party. Animal() an. party() $ python party 1. py an x 0 party()

$ python party 1. py Сейчас 1 Сейчас 2 Сейчас 3 class Party. Animal:

$ python party 1. py Сейчас 1 Сейчас 2 Сейчас 3 class Party. Animal: x=0 def party(self) : self. x = self. x + 1 print("Сейчас ", self. x) an = Party. Animal() an. party() an self x party() Party. Animal. party(an)

class Party. Animal: x = 0 def party(self) : self. x = self. x

class Party. Animal: x = 0 def party(self) : self. x = self. x + 1 print("Сейчас ", self. x) Можем использовать dir(), чтобы узнать «возможности» созданного нами класса. an = Party. Animal() print("Тип ", type(an)) print("Dir ", dir(an)) $ python party 3. py Тип <class '__main__. Party. Animal'> Dir ['__class__', . . . 'party', 'x']

Пробуем применить dir() к строке >>> x = 'Hello there' >>> dir(x) ['__add__', '__class__',

Пробуем применить dir() к строке >>> x = 'Hello there' >>> dir(x) ['__add__', '__class__', '__contains__', '__delattr__', '__doc__', '__eq__', '__getattribute__', '__getitem__', '__getnewargs__', '__getslice__', '__gt__', '__hash__', '__init__', '__len__', '__lt__', '__repr__', '__rmod__', '__rmul__', '__setattr__', '__str__', 'capitalize', 'center', 'count', 'decode', 'endswith', 'expandtabs', 'find', 'index', 'isalnum', 'isalpha', 'isdigit', 'islower', 'isspace', 'istitle', 'isupper', 'join', 'ljust', 'lower', 'lstrip', 'partition', 'replace', 'rfind', 'rindex', 'rjust', 'rpartition', 'rsplit', 'rstrip', 'splitlines', 'startswith', 'strip', 'swapcase', 'title', 'translate', 'upper', 'zfill']

class Party. Animal: x = 0 name = "" def __init__(self, z): self. name

class Party. Animal: x = 0 name = "" def __init__(self, z): self. name = z print(self. name, "constructed") def party(self) : self. x = self. x + 1 print(self. name, "party count", self. x) s = Party. Animal("Sally") j = Party. Animal("Jim") s. party() j. party() s. party()

class Party. Animal: x = 0 name = "" def __init__(self, z): self. name

class Party. Animal: x = 0 name = "" def __init__(self, z): self. name = z print(self. name, "constructed") def party(self) : self. x = self. x + 1 print(self. name, "party count", self. x) s = Party. Animal("Sally") j = Party. Animal("Jim") s. party() j. party() s x: 0 name:

class Party. Animal: x = 0 name = "" def __init__(self, z): self. name

class Party. Animal: x = 0 name = "" def __init__(self, z): self. name = z print(self. name, "constructed") s x: 0 name: Sally def party(self) : self. x = self. x + 1 print(self. name, "party count", self. x) s = Party. Animal("Sally") j = Party. Animal("Jim") s. party() j. party() s. party() j У нас есть два независимых экземпляра x: 0 name: Jim

class Party. Animal: x = 0 name = "" def __init__(self, z): self. name

class Party. Animal: x = 0 name = "" def __init__(self, z): self. name = z print(self. name, "constructed") def party(self) : self. x = self. x + 1 print(self. name, "party count", self. x) s = Party. Animal("Sally") j = Party. Animal("Jim") s. party() j. party() s. party() Sally constructed Jim constructed Sally party count 1 Jim party count 1 Sally party count 2

Наследование http: //www. ibiblio. org/g 2 swap/byteofpython/read/inheritance. html

Наследование http: //www. ibiblio. org/g 2 swap/byteofpython/read/inheritance. html

class Party. Animal: x = 0 name = "" def __init__(self, nam): self. name

class Party. Animal: x = 0 name = "" def __init__(self, nam): self. name = nam print(self. name, "constructed") def party(self) : self. x = self. x + 1 print(self. name, "party count", self. x) s = Party. Animal("Sally") s. party() j = Football. Fan("Jim") j. party() j. touchdown() Football. Fan — подкласс class Football. Fan(Party. Animal): суперкласса Party. Animal. points = 0 def touchdown(self): В нем есть все возможности self. points = self. points + 7 родительского класса Party. Animal, self. party() плюс немного больше. print(self. name, "points", self. points)

class Party. Animal: x = 0 name = "" def __init__(self, nam): self. name

class Party. Animal: x = 0 name = "" def __init__(self, nam): self. name = nam print(self. name, "constructed") def party(self) : self. x = self. x + 1 print(self. name, "party count", self. x) class Football. Fan(Party. Animal): points = 0 def touchdown(self): self. points = self. points + 7 self. party() print(self. name, "points", self. points) s = Party. Animal("Sally") s. party() j = Football. Fan("Jim") j. party() j. touchdown() s x: name: Sally

class Party. Animal: x = 0 name = "" def __init__(self, nam): self. name

class Party. Animal: x = 0 name = "" def __init__(self, nam): self. name = nam print(self. name, "constructed") def party(self) : self. x = self. x + 1 print(self. name, "party count", self. x) class Football. Fan(Party. Animal): points = 0 def touchdown(self): self. points = self. points + 7 self. party() print(self. name, "points", self. points) s = Party. Animal("Sally") s. party() j = Football. Fan("Jim") j. party() j. touchdown() j x: name: Jim points:

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