python class docstring example

#-*-Coding:utf-8-*-# python:2.x__author__ = ' Administrator '#元编程#new-style class provides the ability to modify the definition of classes and objects at run time through 2 special methods (__NEW__ and __metaclass__)#__new__方法#它是一上元构建程序, it is called every time an object is instantiated by the factor class#例如:Class A (

. When a reference is passed to a function, the function automatically copies a reference, and the reference in the function does not have a semi-gross relationship with the outside reference. So the first example is that the function refers to an immutable object number, and when the function returns, the outside reference does not feel half-hairy. And the second example is different, The reference in

superclass inherited by the subclass until it finds the object that attribute first appears.Super class, subclass. Subclasses inherit the superclass, or they can redefine the superclass's variable names at lower positions in the tree, overriding the behavior of the superclass definition (methods)class method Invocation, which is the function property attached to the class.Writing a

Note: The Python2.7 is used. One, instance method An instance method is a method that an instance of a class can use. As follows: Copy Code code as follows: Class Foo: def __init__ (self, name): Self.name = Name def hi (self): Print Self.name if __name__ = = ' __main__ ':foo01 = Foo (' Letian ')Foo01.hi ()Print type (Foo)Print type (FOO01)Print ID (foo01)Print ID (Foo) The

Python LearningOn this page ... (hide) 1.? Basic Installation 2.? Python documentation 2.1. Recommended Resources Site 2.2? Other references 2.3? code example 3.? Common tools 3.1? Python IDE 3.2? Built-in class

Python dynamic link library,You can change it when you need it, as long as you don't change the interface. The disadvantage is that C + + program once compiled, and then change it is not so convenient.(1) Python script: pytest.py#test functiondef Add (b): print "In Python function add" print "a =" + str (a) print "b =" + str (b) pri NT "ret =" + str

can force some of the attributes that we think must be bound to be filled in when the instance is created. By defining a special __init__ method, when creating an instance, bind the attributes such as Name,score: Class Ren (): def __init__ (self,name,sex): Self.name = Name self.sex = Sex def hello (self): print (' Hello {0} '. Format (self.name)) test = ren (' yangling ', ' M ') Test.hello ( The results are printed as:Explain: 1. When passing para

['subobject'] = SubjectMsg ['to'] = COMMASPACE. join (To) # COMMASPACE = ','Msg ['Date'] = formatdate (localtime = True)Msg. attach (MIMEText (text ))For file in files:Part = MIMEBase ('application', 'octet-stream') # 'octet-Stream': binary dataPart. set_payload (open (file, 'RB'. read ()))Encoders. encode_base64 (part)Part. add_header ('content-disposition', 'attachment; filename = "% s" '% OS. path. basename (file ))Msg. attach (part)Import smtplibSmtp = smtplib. SMTP (server ['name'])Smtp. l

= FirstClass () # create a class instance x. display () # method call >>> 30 dir (FirstClass) >>> ['_ doc _', '_ module _', 'display ', 'Spam'] The class statement is similar to def, and is executable code. The class will not be created until the class statement is run. In a