Python----Application of object-oriented---binding method and unbound method

1. Application of methods bound to objects

1 classpeople:2     def __init__(self, name, age, Sex):3Self.name =name4Self.age = Age5Self.sex =Sex6 7     defTell_info (self):#methods to bind to an object8         Print('name:%s age:%s sex:%s'%(Self.name, Self.age, self.sex))9 Tenp = People ('Egon', 18,'male') OneP.tell_info ()#Tell_info (P) A  - The result is: -  theName:egon age:18 Sex:male

Bound to an object, it should be called by an object, automatically passing the object itself as the first parameter

2, binding to the class, it should be called by the class, automatically pass the class itself as the first parameter passed in

1 Importsetting2 3 classpeople:4     def __init__(self, name, age, Sex):5Self.name =name6Self.age = Age7Self.sex =Sex8 9     defTell_info (self):#methods to bind to an objectTen         Print('name:%s age:%s sex:%s'%(Self.name, Self.age, self.sex)) One  A @classmethod -     deffrom_conf (CLS): -obj =CLS ( the Setting.name, - Setting.age, - Setting.sex -         ) +         returnobj -  + #p = people (' Egon ', ' Male ') A #P.tell_info () # Tell_info (p) atp =people.from_conf () - P.tell_info () -  - The result is: -  -Name:xudachen age:18 Sex:male

3. Non-binding method

1 Importsetting2 ImportHashlib3 Import Time4 5 classpeople:6     def __init__(self, name, age, Sex):7Self.id =self.create_id ()8Self.name =name9Self.age = AgeTenSelf.sex =Sex One  A     defTell_info (self):#methods to bind to an object -         Print('name:%s age:%s sex:%s'%(Self.name, Self.age, self.sex)) -  the @classmethod -     deffrom_conf (CLS): -obj =CLS ( - Setting.name, + Setting.age, - Setting.sex +         ) A         returnobj at  - @staticmethod -     defcreate_id (): -m = hashlib.md5 (str (time.time ()). Encode ('Utf-8')) -         returnm.hexdigest () -  in #p = people (' Egon ', ' Male ') - #P.tell_info () # Tell_info (p) to #p = people.from_conf () + #P.tell_info () -  theP1 = People ('Xudachen1', 18,'male') *P2 = People ('Xudachen2', 28,'male') $P3 = People ('Xudachen3', 38,'male')Panax Notoginseng  - Print(p1.id) the Print(p2.id) + Print(p3.id) A  the The result is: +  - 1dadcd98fe26e278ce864c2f0cf2e753 $ bc09cd38527ef257fa3158d4e342ea1b $Bc09cd38527ef257fa3158d4e342ea1b

A non-binding method, not bound to a class or object, can be called, and no automatic value is passed.

Python----Application of object-oriented---binding method and unbound method