Python

Because of business requirements, you need to extract each line of text with the check typeface.The sample is as follows:1 input 10kVB, c female segment 820 latching prepared self-cast platen 2 exit 10kVB, c female segment 820 standby jump 803

User input:Example 1, write a user input password of the small program, the process is as follows:1. Users enter their own user name2. Print "hello+ user name"1 # !/usr/bin/env python 2 3 # name = Raw_input ("What's your Name?") #only on Python 2.x

I. OverviewThis article describes the Python unit test framework UnitTest, which is the standard module UnitTest python comes with. UnitTest is designed based on the popular unit testing framework in Java, which is powerful and flexible, and

When the URL address contains Chinese, or the parameter is in Chinese, this is very difficult to normal, but the URL as a parameter to pass the time (the most common callback), you need to put some Chinese or even '/' to do the code conversion.First,

Learn python argparse module download install and useThe Argparse module in Python replaces the previous Optparse module and is often used to parse command-line arguments and options.Position parameters:Start with one of the most basic programs (it

Requirements:1, copy operation of existing files2, the copied file after the filename plus [copy]3, file comparison how to optimize processing1 #-*-coding:utf-8-*-2 #This is written under Python 2, using the Raw_input3 #Old_file_name used to receive

Unconsciously already ten days study Ah, visual also bad last week also is beginning to learn python two months, estimated to write the 11th article temporarily, because these two days in research OpenStack, feel particularly good, write this to

Insert Sort Summary: The element that currently needs to be sorted (Array[i]), compared to the last element already sorted (Array[i-1]), and loops to the next element to be sorted if the condition continues to execute the subsequent program.

1 Dictionaries and listsThe Python dictionary uses a hash table, so the complexity of the lookup operation is O (1), and the list is actually the array, in the list, the lookup needs to traverse the entire list, its complexity is O (n), so the

Import data from CSPython has a CSV module that supports reading and writing CSV files in various dialect formats. Dialect is important, because there is no agreed CSV standard, different applications implement CSV in a slightly different way, when

Brief introductionSYS module is used to provide actions related to the Python interpretersys.argv command line parameter list, the first element is the program itself path Sys.modules returns the System Import module field, key is the module name,

View online Many are copied code, much the same, on the basis of the predecessors to optimize the code: Automatic completion of 16x string bits, decryption and removal of the restore The data code obtained after optimized encryption is

Defining variablesname = ' Chentaicheng ' #字符串要加 'Age = #数字不加 "When defining the variable name = ' Chentaicheng ', the Python interpreter first creates a ' Chentaicheng ' string in memory,Create a variable named name and point the variable to the

Several sorting algorithms Several sorting algorithms Bubble sort Select sort Insert Sort Fast sorting Quick Sort Bubble sortBubble

The socket implements a simple FTPServer side:Import Socket,osServer = Socket.socket ()Server.bind (("localhost", 9999))Server.listen ()While True:CONN,ADDR = Server.accept ()Print ("New conn:", addr)While True:Print ("Wait for new

Example of a common port scannerThe principle of the port scanner is very simple, the operation of the socket to determine the connection status determines the opening of the host Port. import socket def scan (port): s = Socket.socket ()

Data typeA computer is a machine that can do mathematical calculations as the name implies, so a computer program can handle a variety of values. however, the computer can handle far more than the numerical value, but also can deal with text,

Use of python strings, use of python strings I have read some of the most basic python tutorials on the Internet. They are easy to understand, but they still feel quite cool in the process of writing. You should write more and practice the use of

[Python] Start the python journey and start the python journey Take the time to learn python in the morning. The details are as follows: (1) python 2.7 is installed. (2) notepad ++ was installed. Before it was installed, there was a tangle

Python implements code for Traversing folders and reading and writing files, Analysis on demand 1. Read all files in the specified directory2. Read the specified file and output the File Content3. Create a file and save it to the specified directory.