Python

Judge:#The BMI of Xiao Ming's body, based on a height of 1.75 and a weight of 65,h=1.75W=65BMI=w/(h*h)ifbmi: Print('Too light')elifBmi: Print('Normal')elifBmi: Print('Overweight')elifBmi: Print('Obesity')Else: Print('Severe

lis = Range (100)#[0, 1, 2, 3, ....]#take the top 10Lis[:10]#[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]#after taking 10Lis[-10:]#[94 , the 98, the ",", "]#11th to 20th oneLis[-10:]#[94 , the 98, the ",", "]#The first 10 numbers, each of the two take one (note

Before contact Scrapy originally was thinking maybe scrapy can make my reptile faster, but perhaps I did not master the essentials of Scrapy, so the crawler run up and not as fast as I imagined, see this article is the previous use of the Scrapy

#!/usr/bin/python#--coding:utf8--Import Random #导入随机数的模块Computer = Random.choice ([' Stone ', ' scissors ', ' cloth '])Player = raw_input (' Please punch (stone/scissors/Cloth): ')Print "Your choice:%s, computer ' choice:%s"% (player, computer)If

For list, add, insert, find, delete, slice, etc., code comments are as follows:names = ["James", "Jasmine", "Wade", "Harden", "Paul", "Curry"]#print (names)Names.append ("Durant") #列表末尾加 DurantNames.insert (3, "Love") #列表位置3的名字插入名字

#Author: GE Jian_username =' Gejian '_password =' 123 'user =input ( " Please enter your username: " pwd = input (" Please enter password: " if user = = _username and pwd = = _password: print ( "Welcome User%s Login"% user) Span style= "color:

High-order characteristics ********************A, *) variable can point to a functionIn Python, the function name is essentially the content that points to the function body;The function itself can also be assigned to a variable, namely: A variable

Source: http://blog.csdn.net/chroming/article/details/520833871. pyThe script file is the most basic source code extension. A direct double-click Run under Windows invokes Python.exe execution.2, PYcWhen you execute Python code, you will often see

The methods used in Python for operating system directories in the OS module, are now some of the commonly used methods to organize the following1. Get access to directory filesOs.listdir (parameter) gets all the files in the current directory, the

Compared with list, Dict has the following features: The speed of finding and inserting is very fast and will not slow with the increase of key; It takes a lot of memory, and it wastes a lot of memory. And the list is the

1 #Encoding:utf-82 3 4 #print 10 times Hello word5num = 106 whilenum >0:7 Print("Hello Word")8num-= 19 Ten #Invert string OneMessage ="Hello Word" Aresult ="" - forCinchmessage: -result = C +result the Print(Result) - - #print even numbers

#\n Carriage return character#\r line break#\s spaces#\t tab symbol, do not know? Open a txt text, and then press the Computer tab key, that is, caps lock above that, crouching groove, see a Big Sky lattice (also may be an extra short space), this

#dict字典, in fact, rather than the dictionary called Key-value more appropriate, do not know the name is how to come, this can be used to engage in user name and password, but this does not use the database is too low#用花括号 {} expands, commas separate

#list array of similar arrays, with [] expanded comma-delimitedA = [' A ', ' B ', ' C ']#常用函数A.append (' C ') #在list最后增加一个元素, the result is [' A ', ' B ', ' C ', ' C ']A.count (' C ') #统计一个元素在list中有多少个, the result is 2A.index (' C ')

1. Using Re.compileThe RE module contains an important function, compile (pattern [, flags]), which creates a pattern object based on the string containing the regular expression. A more efficient match can be achieved. Python converts a string to a

Two request messages, judging the difference between the key and value, only Judge D2 and D1 different values, and all the different keysok_req={"Version": "9.0.0","Is_test": True,"Store": "","Urs": "","Device": {"OS": "Android","IMEI": "990010621988

84. flask signal and mateclass Meta, flaskmateclass Navigate to this article: Flask instantiation Parameters Signal Metaclass metadata Parsing 1. flask instantiation Parameters Instance_path and instance_relative_config are used together;These

Python learning path: day7 and python day7 I have finished learning the basic part of python, and it has been around two months. I feel that I have not learned much. Maybe I forgot too much after learning it. Because I have no money to buy books,

The error 'bubuteerror: '_ NamespacePath 'object has no attribute 'sort ''is returned when zc. buildout is used to build a project '', If 'bubuteerror: '_ NamespacePath 'object has no attribute 'sort ''is encountered during project construction

Python socket, pythonsocket Python network programming mainly supports two network protocols: TCP and UDP. Both protocols are processed through the Socket programming abstraction. Socket originated from Unix and is similar to the existence of files.