Python

Ternary operationsTernary operation is a simple notation for conditional statements. If the condition is true, the value 1 is returned, otherwise, the value 2 is returned.if Else value 2Depth copyfor numbers (int) and strings (str), assignments,

#https://www.liaoxuefeng.com/wiki/0014316089557264a6b348958f449949df42a6d3a2e542c000/ 00143191629979802b566644aa84656b50cd484ec4a7838000mydict.py#!/usr/bin/env Python3#-*-coding:utf-8-*-"""Created on Sat Jan 16:32:34 2018@author:k"""classDict (Dict):

1. StringThe main print "and" "results are kind, note that if the sentence contains ' or ' is to cross-use, such as I ' a man. There is ', then print with double quotes" I am a man. "If" Apple "is a Fruit. Use single quotation marks ' "Apple" is an

To the function, continue to insist.Max (,...,)Data type conversionsInt (' 123 ')Defining functionsdef func_name (Ele,....,...):...Return ...from filename import my_abs(我的函数)To import my_abs() the function, note filename the file name (without the

# all_tests_pro.pyImport unittest,time,os,multiprocessingImport Htmltestrunner#查找多有含有thread的文件, FolderDef eeecreatsuit ():Casedir = []Listaa = Os.listdir (R ' C:\Users\wangxue1\PycharmProjects\selenium2TestOne ')For XX in Listaa:If ' thread ' in

Import NumPyA=numpy.random.randint (1, 4095, (5000,5000))A.sum ()The result is negative, which is wrong, the type of A.sum () is Int32, how can the result be displayed correctly? Follow this procedure:c=Numpy.int64 (a). SUM ()The result is upright,

---restore content starts---Python allows internal functions, meaning that a function can be defined inside a function, which creates a variable access problem, similar to the inner class of Java, where the inner class can directly access the member

1 #any number of arguments (optional)2 defTest (a,*b):3 returnA, b4 5 Print(Test (1,2,3,4,5))6 #a tuple is returned7 8 #any number of keyword arguments9 defTest (a,**b):Ten returnA, b One A Print(Test (a=1,c=2,d=3,e=4,f=5)) - #The return is

First, call the functionOn the interactive command line by help(abs) looking at abs the Help information for the functionAssign a function name to a variableA = ABSSecond, define the functionSolution equation: ax2 + bx + c = 01 #-*-coding:utf-8-*-2 3

Insert SortThe core idea: in an ordered array, the position of the new number is found by comparing one to the previous number.Example: An array has a number 21Insert a 3,3, so the result is 3,21then insert a 34,34>21, So the result is 3,21,34then

Read catalogue one. anonymous functions　　1. What is an anonymous function?Anonymous functions: a sentence function designed to address the very simple requirements of a function# anonymity means no name . def func (x,y,z=1): return x+y+z#

1 classpeople ():2 def __init__(self,name):3Self.name =name4Self.age =' +'5 6 defsit (self):7 Print('%s sit down'%self.name)8 9 defSay (self):Ten Print('%s Speaking'%self.name) One A defedit_age (self,age): -Self.age

Review the small code of the number of dictation, the problem arises.The condition under the while statement. Should be Result==false and Answer=input (). If Answer=input () is written outside the while, it will output too small as it did

Properties of the class Packaging Inherited Properties of a polymorphic definition class Define directly inside a class Define a class with python in the constructor #!/usr/bin/env python# -*- coding: utf-8 -*-__author__

1.Lists can hold any data type, elements can be duplicated, and lists can be nested. Can be added to the check operation.2. Create a list:L= "" or l=list () creates an empty list;3, query or value:Ex:l= "A", "a", "B", "C", "The index or subscript

The company has a need to turn the JSON file into Excel format.Although I just learned python soon, I was also fascinated by Python's easy-to-use and rich modules.Tablib module can be implemented perfectly, JSON to excelOfficial website:

Office automation, There are many application scenarios in the office environment, including tedious and repetitive work. In this era of learning, it is necessary to free the brain and hands from these mechanical repetitive work. Whether in the

Python 3.6 + robotFramework automated framework Environment setup, learning notes, ######################################## ########################## Author: Chen yuebai# _ Blogs: http://www.cnblogs.com/chenyuebai/###################################

[PYTHON] Three-Level menu, 1 # Author: Stephen Yuan 2 3 area_range = {4 'guangdong province ': {5 'guangzhou City': {6 'haizhu district ': ['total area of 90.40 square kilometers', 'September 2015, the total GDP of Haizhu District reaches 142.297

Sesame HTTP: basic introduction to TensorFlow, zhima tensorflow This article is based on Python3 TensorFlow 1.4.Content of this section This section describes the basic usage of TensorFlow using the simplest example, plane fitting.Construct