learning python fifth edition

"Basic Python Tutorial (second edition)" Learning note statements/loops/conditions (Chapter 5th)print ' AB ', 123 ==> AB 123 # Insert a spaceprint ' AB ', ' CD ' ==> AB CD # Inserted a spacePrint ==> 1 2 3Print (==>) (1, 2, 3)#在脚本中以下ABCD连在一起输出print ' AB ',print ' CD 'Import Somemodule #导入模块From Somemodule import somefunction #导入函数From Somemodule import Function1,

"Basic Python Tutorial (second edition)" Learning Note Dictionary (4th chapter)To create a dictionary:d={' key1 ': ' value1 ', ' key2 ': ' value2 '}lst=[(' Key1 ', ' value1 '), (' Key2 ', ' value2 ')]; D=dict (LST)D=dict (key1= ' value1 ', key2= ' value2 ')Dictionary basic operations:d={' key1 ': ' value1 ', ' key2 ': ' value2 '}; Len (d) ==> 2 #字典中的键值对数量d={' key

"Basic Python Tutorial (second edition)" Learning notesBasic part (1th chapter)IdeWindows:idle (GUI), Eclipse+pydev; Python (command line);Linux/unix:python>>> 1/2=0 note divisible by 0.>>> from __future__ Import Division performing normal divisionPython-qnew Perform a normal divisionDivide, 1//2=0;% take the remainder

() if user== Username and Passwd==password:print ("\033[32;1muser has passed authentication\033[0m") Res=func (*args,**kwargs) # print ("---after authentication---") #保留要装饰函数home的输出结果 r Eturn Res else:exit ("\033[31;1minvalid username or password\033[0m") elif au th_type== "LDAP": Print ("Engage the yarn LDAP, will not ....") ") return wrapper return Outer_authdef index (): Print (" Welcome to Index page ") @auth (auth_type=" local ") def Hom E (): Print ("Welcome to Home Pag

Basic Python Tutorial (second edition) Learning note files and materials (11th)Open File:Open (Filename[,mode[,buffering]])Mode is the pattern of reading and writing filesF=open (R ' c:\somefile.txt ') #默认是读模式+ means can read and write, R read mode, W write mode, a append mode, b binary mode;The newline character is \ r \ n in Windows, and in Unix,

Basic Python Tutorial (second edition) Learning Note function (Chapter 6th)To create a function:def function_name (params):BlockReturn valuesRecord function:def function_name (params):' NOTE ' #注释BlockReturn valuesfunction_name.__doc__Help (Function_name)Return # no value returnedPosition parameters and keyword parameters:Keyword parameter to provide the name of

Recently saw a lot of things, also practiced some, I found this thing seems to be a bit into the bottleneck of the feeling, this bottleneck, I think is because the time is too short,There are not enough exercises, and there are a lot of things that have been done at random. And recently in learning Python, some things are a little confusing, I decided to newGo through the book and learn every example.PL/SQL

and project requirements is the most important. So how to strengthen cooperation with others? In an organization, most of the time, the members of the cooperation is not what we can choose, so it is likely that the group members of the various aspects of the ability to be uneven, if as a leader, at this time need a good cohesion ability, can put the characteristics of most of the members of the various aspects of cohesion together, It also requires leaders to have a good ability to interact an

good for one person, it is always good for another person.”Answer: wrong. The trade price of both parties must be located at the opportunity cost between the two.E. " If trade can bring benefits to a country, it will certainly bring benefits to everyone in the country.”Answer: wrong. While trade can bring benefits to a country, it may undermine the interests of some people in the nation. For example, suppose a country has a ratio of wheat productionMore advantages, in the production of cars hav

will bring some problems, such as command execution of the different steps, The workaround is to make the data sent by the local storage server by using a loop-received method.Of course, if you want to execute the man and other query commands, the above program is also unable to do, so here is said, this is just a simple version of the SSH program, as a Python socket learning, and really want to use SSH, i

.jpg-wh_500x0-wm_3 -wmp_4-s_4136175226.jpg "title=" Fifth week -13.jpg "alt=" Wkiol1fjjimyxq0zaacgqnesff0041.jpg-wh_50 "/>14. Find files whose contents have been modified and not rooted or Hadoop for the last week in/etc directory;# FIND/ETC-MTIME-7!\ (-user root-o-user hadoop \) or # FIND/ETC-MTIME-7!-user Root! -user Hadoop650) this.width=650; "Src=" Http://s1.51cto.com/wyfs02/M00/86/BF/wKiom1fJJVvAWo53AABOAIuGiZA942.jpg-wh_500x0-wm_3 -wmp_4-s_18311

: argument 9 func ('xiaoming 'ten -one common parameter Specifying parameters and Default parameters 1 #name is called the formal parameter of function func, abbreviation: parameter2 #def func (name, age=18): #age is the default parameter if no parameter is specified below, the default parameter is used directly3 #print ("%s:%s"% (name, age))4 #5 #6 ## Specify Parameters7 #func (' Wupeiqi ', +) #19 overrides default parameters8 ## using

allows you to easily achieve this goal: for some pages, only logged-in users are allowed access to them. The adorner (decorator) is the instruction placed before the function definition, and Python modifies the behavior of the function code before the function is run.--snip--from django.core.urlresolvers Import reversefrom django.contrib.auth.decorators import Login_requiredfrom. Models import Topic, entry--snip--@login_requireddef topics (Request):

has a "return value", the try also has a "return value", then call the method to get what data it. Let's take a look at the code below.Note: It is not clear why this design is returned to the finally.defDiv (val1,val2):Try: returnval1/Val2except(Zerodivisionerror,typeerror), E:returnEfinally: return 'I am finally'PrintDiv (1,'2')PrintDiv ()>>i amfinally>>i amfinallythree. Summary:This chapter records the creation and basic use of functions.And the use of exceptions. There is stil

Editor or IDE Eclipse IntelliJ idea Visual Studio Code Vim MacOSJava Platform, standard Edition installation Guide-macos Installing and configuring the JDK Download JDKJava SE Development Kit 8 DownloadsJava SE Development Kit 8 selectionMac OS X x64 first accepts the protocol and then downloads JDK-8U171-MACOSX-X64.DMG Installing the JDKDouble-click JDK-8U171-MACOSX-X64.DMG and follo

This time, I followed the "Fun learning python--teach children to learn programming", to add a program to use the keyboard around the key control of the racket.650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M01/8B/57/wKiom1hKBgSB9RGVAAA8pOc-p98581.jpg "title=" Paddle.jpg "alt=" Wkiom1hkbgsb9rgvaaa8poc-p98581.jpg "/>#引入下列模块from tkinterimport* #画图模块import random #随机数模块import time #时间模块 # Crea

Python Learning Fifth week string related learning content summary and homeworkWeek five is mainly about string-related operations, includingA sequence of characters that define a stringBasic character arithmeticLength len (str) functionStitching +str = str1 + ' Pinjie 'Repeat *name * 3 is the name of the string conten

maximum recursion depth of 999 layersSmall white exclamation way: a little one recursion so much learning AHXiao Liu: Don't you know that the series you just came up with is called the Fibonacci sequence?Little white: I don't know.Xiao Liu: That is, a number equals the first two, and I have a function to set the recursion depth to you here.def f5 (DEPTH,A1,A2): if depth = = Ten: return a1 a3 = A1 + A2 r = F5 (DEPTH+1,A2,A3) return

Yesterday is the first day of the week, a brief review of yesterday's study of things, in a re-look at the previous blog it.Well, then today's collection began to learn, I only learning not to enter the time will open my magical world, under normal circumstances, he should be hidden in my body.List: The Bible probably means: The list is Python's labor, Python is beginner's mind mainland.I do not know where

Chapter One Welcome to Python world What is Python The origins of Python Features of Python Download python Install Python Run Python