Python

Tools List 1. **树莓派**（型号不要求,本人使用的是3B） 2. **usb麦克风**（某宝有卖,我就不打广告了） 用来录音 3. **音响或者喇叭**（某宝也有卖） 用来播放 These are the tools you need.The dialogue robot is divided into 5 steps1. First step: "Recording": Recording I use the *arecord*Install Arecord:sudo

In: Determines whether an element is a member of a collection, as defined by S = set (' Hello '), then ' e ' in s returns a result of trueNot in: Contrary to in= =: equivalent operator, used to compare between the same or different sets, if and only

The OS module is an operating module in the Python standard library, primarily for processing files and directories in the Linux operating system1. To use the OS, you must first import the OSImport OS2.OS.GETCWD () Gets the current path.print

What is a meta-class? Young people do not care about these details, we step-by-step!001.In the world of OOP, there is a word, "all things are objects."classPerson (object): Name=Noneif __name__=="__main__": I=123s="Hello World"P=Person ()Print(Type (

Python Reptile's Urllib Module 2This article from the user contributionsPG-55, a second-rate college graduate to be employed.                    read the previous section of the feedback, some students think this is meaningless, also some students

Install 2 Libraries FirstPip Install PandasPip Install OPENPYXLImport Pandas as PDClass Excel (): def __init__ (self): Pass def get_index (self): Datas = Pd.read_excel (' satisfaction.xlsx ', sheetname= ' Sheet1 ')

passwd = ' Test ' creates a variableLogout_flag = False if login equals false, continue to enter passwordFor I in range (4): Loop 4 timesUser_input = raw_input ("Please input your passwd:"). Strip () assigning user input passwd timesIf Len

Copy ModuleUse the Copy module to implement the replication functionality.The copy method is divided into shallow copy and deep copy:Shallow copy,Copy.copy (object)The memory address is copied, and the target object and source object point to the

Transferred from: http://www.cnblogs.com/guigujun/p/6134828.htmlFor a simple if Else statement, you can use the ternary operation to represent the conditional operation, namely: 12345678 # General conditions Statement if   1 =

The principles of the analog login are almost identical, basically: Open the homepage for the relevant cookie. Submit a login form (i.e. username and password). Confirm that the login is successful. If you want to know more specific

#-*-Coding:utf-8-*-"" "Created on Thu June 09:37:48 2014@author:lifeix" "" Import reimport urllib2import Cookieliburl = ' http://www.cnblogs.com/wendingding/tag/IOS%E5%BC%80%E5%8F%91/default.html?page= ' #url = ' http://www.cnblogs.com

anonymous function lambdaanonymous function: Lambda x,y:x+yThe above explanation: X, y are function functions, x+y is the function's return valueThe naming convention for anonymous functions, identified by the LAMDBA keyword, and the left side of

# coding = Utf-8Import datetimeDD = raw_input ("Please enter date, format is YYYYMMDD:")"" To convert a string type to a date type, strptime "" "DD = Datetime.datetime.strptime (dd, "%y%m%d")"" To convert the date type DD to Time.struct_time

Port sysreload (SYS) sys.setdefaultencoding ('Utf-8')ImportMatplotlib.pyplot as PltImportNumPy as Npculster1= Np.random.uniform (0.5, 1.5, (2, 20)) Culster2= Np.random.uniform (1.5, 2.5, (2, 20)) Culster3= Np.random.uniform (1.5, 3.5, (2, 20))

In OOP it is necessary to implement through inheritance, and Python, in addition to using inheritance to implement the adornment mode, directly below the level of the syntax to support the adorner through a simple example to understand the Python

Web crawler is a program or script that automatically crawls world wide Web information according to certain rules.Crawler main problem: 1.http request 2. Parsing HTML source Code 3. Counter-crawl mechanism.I think the crawler is very interesting,

2.1 Modification of instance 1, replacing the existing input part with eval (input (), and making the output temperature value an integer.2.2 Exchange rate redemption procedure. According to the design idea of the temperature conversion program, we

Implement a user login applet, if the password is wrong, you can retry three times, if three times are wrong, then lockedThe database is in the following format, user name | password | locked, where lock field 0 is normal, 1 is

How to Use pycharm in MAC, macpycharm 1. At the beginning of creation, you can select the python version you want to use. If you want to change the Python version later, you can use ~~~ Change to the Python version.   2. Create a. py file and

Python introduction, download and install configuration, the first program Hello World, pythonhello Python Introduction Python features: elegance, clarity, and simplicity Python source code cannot be encrypted Python is applicable in the following