Python

Background: I use Python to write automated scripts, the basic things will be. But, given that young should study hard, they plan to buy a python book for intensive reading."Python core Programming"The first time to learn Python is "python core

#Merge SortdefMergeSort (A,L,R):if(l>=r):returnMid= ((l+r) >>1)MergeSort (A,l,mid)MergeSort (A,mid+1,r)P=lQ=mid+1T=[] while(P andQifA[P]T.append (A[p])P+=1ifA[P]>A[Q]:T.append (A[q])Q+=1 while(PT.append (A[p])P+=1 while(qT.append (A[q])Q+=1Cur=0

????? It is necessary to explain the iterator (iterator) and generator (constructor) in Python before introducing yield.One, iterator (iterator)In Python, A For loop can be used for any type in Python, including lists, Ganso, and so on, in fact, the

Import time1. A class that represents time. The time range represented is from January 1, 1970 to January 19, 2038.2, in Python, the way to represent time is: 1) Timestamp: timestamp2) formatted string3) Tuple: Struct_time3. Function of Time1)

#!/usr/bin/env python# -*- coding: utf-8 -*-#该邮件功能只是发送基本的文本内容, without any attachments and pictures, Send format is import smtplib  from email.mime.text import mimetext   sent in HTML Mailto_list=[' [email protected] ', ' [email protected]

#!/usr/bin/env python#coding: utf-8 by guozheng_li# the script is sent as a picture, the test is normally available without adding the instructions. Import smtplibfrom email.mime.multipart import mimemultipartfrom email.mime.text

#!/usr/bin/env python#coding: utf-8 by guozheng_li# the script adds text, images, and attachments, and the daily ops script basically has enough of these three things. Can be sent to more than one person, as long as the corresponding mailto_list can

In Bole online saw this article, with Python __slots__ save 9G of memory, so want to test, for a single class, with __slots__ save memory effect will not be obvious.After reading this example, we will also understand __slots__ is used to

Download ImageMagick. Then write a script to convert all PNG images.Import Oscmd= R'C:\Program Files\imagemagick-6.9.1-q16\convert.exe' #convert.exe directory under ImageMagick installation directory Source_path= R'C:\effect2\resource' #png图片所在目录def

1. Double Underline (__)Properties that start with a double underscore are confused at run time, so direct access is not allowed. Properties that actually start with a double underscoreThe underscore and the class name are prepended to the

The main implementation of the membership information to increase, modify, query, and delete functions, writing to play,In the process of writing, encountered problems, old new member information data merge, mobile phone number and mailbox

Load lyrics synchronized display with same name as directory #!/usr/bin/python# -*- coding: utf-8 -*-import sys, os, time,  SUBPROCESS,RE,CHARDETDEFLOAD_LRC (Lrc_file):    try:         lrc_contains = open (lrc_file,  ' RB '). Read ()    

http://blog.csdn.net/pipisorry/article/details/46972171In a Python/wxpython environment, the method of executing an external command or launching another program in a python program1. Os.system (command)The Os.system () function is used to run the

Learn about regular expressions in Python today. On the syntax of regular expressions, there are many studies on the Internet without much explanation. This article mainly introduces the regular expression handler functions commonly used in Python.

Before Linux with a Python script to write a grab packet analysis gadget, really do not want to use what libpcap, Pypcap so, simple to a tcpdump plus grep to fix. The basic idea is to start tcpdump and grep two processes, the process directly

Python list method1, list.append (x)Add an element to the end of the list; equivalent to A[len (a):] = [x].>>> List1 = range (5)>>>1, 2, 3, 4]>>> list1.append (' a ' )>>>'a']2, List.extend (L)Attaches all the elements in the given list to the end of

Normally, when we define a class and create an instance of class, we can bind any property and method to that instance, which is the flexibility of dynamic language.Look at one of the following common Get/set operationsclass Student (object): ...

I. ExceptionsPython throws an exception when it encounters an error. If the exception object is not captured or processed, the program will backtrack (Traceback) to terminate the operation:1 print 1/ 023Traceback (most recent call last):4 "

File directory structure:　　Create a new file and name it "Templatetags", then copy the __init__.py file and copy it to the Templatetags folder.　　__pycache__ folder can be ignored Ha, which is compiled after the program runs the generatedCreate a new

Python Learning -- SyntaxError: Non-ASCIIcharacter & #39; \ xe5 & #39; After installing eclipse, I tried it. A pydev project is created. Package, module Write the simplest command in test. py Print "helloworld" Error-SyntaxError: Non-ASCII