Python

Python Multithreading learning

Foreword in the process of reptile learning , Once the number of crawls is too large , It's easy to bring efficiency problems , In order to be abl...
2019-05-10 22:32 views 50

python Branching structure

Program structure program three kinds of structure order cyclic branch structure basic syntax of branch structure if Conditional expression ...
2019-05-10 20:49 views 76

How to improve python in for The efficiency of the cycle

Taxi data for a city , One day 33210000 Records , How to separate the data of each car and put it into a special file ? The idea is simple ： It's ...
2019-05-08 19:45 views 20

python in pandas Module read Excel All of sheet surface

#Excel turn CSV, One sheet Save the table in a CSV In the file , And sheet Naming importpandasaspddefxlsx_to_csv_pd():#sheet_name=None Read all she...
2019-05-01 23:54 views 50

be based on Python Implementation of mine clearance game instance code

In this paper, examples for reference mvc pattern , The core data are model, maintain 1 Matrices ,0 Without thunder ,1 Biao Lei ,-1 The table has ...
2019-04-27 19:33 views 25

Python Basic steps of crawling web data

Python Basic steps of crawling web data ：1, get data ：Requests,Urllib2, Parsing data ：BeautifulSoup,XPath3, Save data ：MongoDB,MySQL,SQLite,CSV,Exc...
2019-04-20 09:25 views 22

Python Basic knowledge and notes

Text writing .title() Initial capital .upper() All capitals .lower() All lowercase \n Space \t Element processing of newline list .lstrip() Clear ...
2019-04-08 16:37 views 20

python Summation function sum() Detailed explanation

python Summation function sum() Explain in detail today in the process of learning , misuse sum() function , I checked again python sum() The funct...
2019-04-06 21:32 views 13

How to use faster and more efficiently pandas Read multiple sheet Of excel file ?

We know pandas Reading of excel The normal way to file is pd.read_excel(file, sheetname), I think a lot of people read in this normal way . actual...
2019-04-03 17:05 views 37

python Paths must be separated by double slashes

For the use of python Interactive window for , You can add a path to add a path to the python In recognizable path . The following code is used ：i...
2019-04-01 14:46 views 56
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