Academic Work Personal
|
Python /
Classes
class Person: def __init__(self, name): self.name = name def __str__(self): return "Person(name: " + self.name + ")" #################### class Man(Person): def __init__(self, name, age): # Note 3, don't forget to call the ancestor's __init__ Person.__init__(self, name) # Note 1, include self self.age = age def __str__(self): return "Man(name: " + self.name + ", age: " + str(self.age) + ")" #################### joe = Person('joe') # Note 2, don't include self print joe # Person(name: joe) lac = Man('lac', 32) print lac # Man(name: lac, age: 32) All data attributes of a class are initialized in the Note 1 & 2: When you call a method of the ancestor class from your class, you MUST include the Note 3: Class Attributesclass Count: cnt = 0 # class attributes are here; data attribute go to __init__ def __init__(self): self.__class__.cnt += 1 # or: Count.cnt += 1 #################### print Count.cnt # 0, works without instances cnt = Count() print cnt.cnt # 1 cnt2 = Count() print cnt2.cnt # 2 print Count.cnt # 2 Here
|
anime | bash | blogs | bsd | c/c++ | c64 | calc | comics | convert | cube | del.icio.us | digg | east | eBooks | egeszseg | elite | firefox | flash | fun | games | gimp | google | groovy | hardware | hit&run | howto | java | javascript | knife | lang | latex | liferay | linux | lovecraft | magyar | maths | movies | music | p2p | perl | pdf | photoshop | php | pmwiki | prog | python | radio | recept | rts | scala | scene | sci-fi | scripting | security | shell | space | súlyos | telephone | torrente | translate | ubuntu | vim | wallpapers | webutils | wikis | windows Blogs and Dev. * Ubuntu Incident Places Debrecen | France | Hungary | Montreal | Nancy Notes Hobby Projects * Jabba's Codes Quick Links [ edit ] |