classmethod

ObjectiveIn the previous unittest, the setup can be executed before each execution of the use case, which effectively reduces the amount of code, but there is a drawback, such as opening a browser operation, which is reopened every time the use case

ForeplayFirst of all, we must first understand what the various components of a class should be called.-Note: It may not be the same.　　　About @propertyAs the name implies: it means ' attributes '.Role:1: Using it you will turn the class method into

Returns the class function as a method of the class. The first parameter of a class method is the specified class, which, like a function in a class, is the specified class instance. The class method modifier is used in the following format:Class C:@

Python _ builtins _ classmethod class (11 ), 11. For 'classmethod', the modifier's function does not need to be instantiated and the self parameter is not required. However, the first parameter must be the cls parameter representing its own class

ObjectiveIn the previous unittest, the setup can be executed before each execution of the use case, which effectively reduces the amount of code, but there is a drawback, such as opening a browser operation, which is reopened every time the use case

ObjectiveIn the previous unittest, the setup can be executed before each execution of the use case, which effectively reduces the amount of code, but there is a drawback, such as opening a browser operation, which is reopened every time the use case

Reference: http://blog.csdn.net/handsomekang/article/details/9615239 In general, to use a method of a class, you need to instantiate an object before calling the method. As we have defined a Class A (): Def __init__ (): Print "A" Def show

Application of three kinds of functions in class#!/usr/bin/env python#-*-Coding:utf-8-*- class tclassstatic(object): def __init__(self, data):Self.data = Data def printself(*arg): # for item in ARG: # Print

From the blog: Shanghai-leisurelyOriginal address: http://www.cnblogs.com/yoyoketang/tag/unittest/ObjectiveIn the previous unittest, the setup can be executed before each execution of the use case, which effectively reduces the amount of code, but

Original address: http://www.cnblogs.com/yoyoketang/p/6685416.htmlObjectiveIn the previous unittest, the setup can be executed before each execution of the use case, which effectively reduces the amount of code, but there is a drawback, such as

@staticmethod, @classmethod, @property usage and functionclassFoo (object):def __init__(self): Self._name="Property Test" Print "Init" defTest (self):Print "class Method"@propertydefname (self):returnself._name @staticmethoddefStaticfun ():

11, ' Classmethod ', the modifier corresponding to the function does not need to instantiate, do not need the self parameter, but the first parameter needs to be a CLS parameter representing its own class, you can invoke the properties of the class,

Classmethod: Class MethodStaticmethod: Static Method In python, both static and class methods can be accessed through class objects and class object instances. But the difference is: @ Classmethod is a function modifier, which indicates

First, Staticmethod (function)Return a static method for function.A static method does not receive an implicit first argument. To declare a static method with this idiom:class Sing (): @staticmethod def SayHello (): print"Hello World "

Reference Link: http://www.cnblogs.com/alex3714/articles/5213184.htmlStatic methodsOnly nominal collation management, in fact, no property in the class or instance can be accessed in a static methodClass Dog (object): def __init__ (self,name):

First, the binding method1. methods to bind to a class: The method of decorating with the Classmethod adorner. Tailor-made for the classClass. Boud_method (), which automatically passes a class as the first parameter(The object can also be called,

DescribeThe function that corresponds to the Classmethod modifier does not need to be instantiated, does not require the self parameter, but the first parameter needs to be a CLS parameter that represents its own class, can invoke the class's

1. In general, when we use a method of a class, we first instantiate the class, and then use the instantiated class to invoke its methodclassTest (object):"""docstring for Test""" def __init__(Self, arg=None): Super (Test, self).__init__()

Example? 12345678910111213 class A (object):    def foo (self,x):      print "executing foo (%s,%s)"% (self,x)      @classmethod def Class_foo (cls,x): print "executing Class_foo (%s,%s)"% (cls,x)   @staticmethod

The official word for the use of Python @classmethod:Classmethod (function)English Description:Classmethod is used to specify a method of a class as a class method, without this parameter specifying the class method as an instance method, using the