The Python language feature is very powerful, in addition to the class, there is the concept of modules and packages, which is a bit like Perl, here is a brief talk about packages and modules.
First, the module in Python
Module-is actually what we
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
The implementation of global variables for Python is described in this paper as follows:
Let's take a look at the following test procedure:
Count = 0def Fuc (count): Print count count + = 1for i in range (0, ten): Fuc (count)
The operating
I. Definition of a tree
Tree structure is a kind of important nonlinear structure. A tree structure is a structure that has branching between nodes and has a hierarchical relationship. It is very similar to the tree in nature.Recursive definition
The code is as follows:
Import ZipFileImport Stringio
Class Inmemoryzip (object):def __init__ (self):# Create the In-memory File-like objectSelf.in_memory_zip = Stringio.stringio ()
def append (self, filename_in_zip, file_contents):"Appends a file
First, get the depth of the binary treeIs the final level of the binary tree, such as:
Implementation code:
The code is as follows:
def getheight (self):"Get Binary Tree Depth"Return Self.__get_tree_height (Self.root)def __get_tree_height (self,
Recently a lot of code to share this problem, the topic is to use object-oriented or functional programming, the following is a Python implementation example
The code is as follows:
#!/usr/bin/python#encoding: UTF8
'''The Game of
module-level functions
Logging.getlogger ([name]): Returns a Logger object that returns root if no name is specified loggerLogging.debug (), Logging.info (), logging.warning (), Logging.error (), logging.critical (): Set the log level for root
Python operators are similar to other languages
(We only know the basic usage of these operators for the time being, so we could expand the content later, the advanced application is not introduced at the moment)
Mathematical operations
The code
The usage of enumerate in Python is used to get counted in the For loop, and this article shows you the use of enumerate in Python as an instance. Specific as follows:
The enumerate parameter is a variable that can be traversed, such as a string, a
The python implementation described in this article is bubbling, inserting, selecting a simple instance of sort for Python beginners to learn from the basics of data structures and algorithms, examples are simple to understand, the code is as
In this paper, the method of restarting shutdown program implemented by Python is described, which has some reference value for Python program design. Here's how:
The instance code is as follows:
#!/usr/bin/python#coding=utf-8import timefrom os
Python's character set processing is really egg ache, currently use UTF-8 majority, then the default character set is ASCII, so we need to change to Utf-8
View current system Character set
The code is as follows:
Import SysPrint
Functional programming is the use of a series of functions to solve the problem, according to general programming thinking, the way we think about the problem is "how to do", and function-based programming thinking is what I want to "do." As for the
Real-time comparison
Pycharm keeps track of the changes you make in a file by displaying a blue marker in the left column of the editor.This is very handy, and I've been using the command "Compare against HEAD" in Eclipse to compare changes before
In this paper, the method of Python3 to connect SQLite database is described, which has a good reference value for Python learning. Share it for everyone's reference. Here's how:
The instance code is as follows:
Import sqlite3db = r
Getting Started with Python
This series for Python learning related notes collated, it people, more study harmless, more exploration, stimulate learning interest, pioneering thinking, do not ask tall, only to understand the fur, as the knowledge of
Last time I climbed n many pictures, but there was a problem when I browsed.
The image browser is generally ranked by name, and my name for the image is incremented by number. For example, 3 will always be ranked behind 10, it will not be able to
This article describes a Python-written applet for a link to an injection point to detect if the current database user is SA, with detailed code such as the following:
# Code by Zhaoxiaobu email:little.bu@hotmail.com #-*-coding:utf-8-*-from sys
This article takes a detailed example of Python's iterators and generators, as follows:
1. Iterator Overview:Iterators are a way to access the elements of a collection. The iterator object is accessed from the first element of the collection until
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