Python

Basic definition and use of function ‘ To be continued

. Custom sort value ： All elements in the container are compared in pairs list01 = [54, 5, 65, 76, 87, 9]# Small --> large # Core ideas ： ...
2020-10-15 21:19 views 3

python Stack

The preface is quoted from the book ： Stack （ Sometimes called “ LIFO stack ”） Is an ordered collection of items , Adding and removing new items a...
2020-08-18 07:03 views 2

python Linked list

The structure of a linked list is a collection of items , Each of these items maintains its relative position relative to the others .python Linke...
2020-08-18 07:03 views 2

python List performance

Preface learning algorithm recently ,python Books are 《python-data-structure-cn》 From books ：python The designer has many choices when implement...
2020-08-18 07:03 views 1

Attack and defend the world web simple_js chr() usage python3

simple_js View source code ASCII It seems that it is not difficult to convert hexadecimal code to decimal system 55,56,54,79,115,69,·········· Tha...
2020-08-15 12:52 views 4

python word frequency count _ english

Code everyone is writing Chinese word frequency statistics , I got in touch python It's been years , It's also written in English , Really , Just ...
2020-08-15 05:22 views 2

Python - Examples of classic programs

sort list defque6():#6. Enter three integers x,y,z, Form a list , Please put this n Number of output from small to large .# Program analysis ： The...
2020-08-15 05:22 views 10

112 Sum of paths —— Force buckle algorithm series 2020.07.07 Python

2020.07.07 Tuesday is the day of college entrance examination 112 Path sum topic ： Given a binary tree and a target sum , Determine whether there ...
2020-08-12 11:01 views 1

python use openpyxi read excel Simple use of documents

One , Basic environment 1, my python The environment is 3.0 Above ,excel yes 2016 edition , For software pycharm Two , Specific use 1, You ...
2020-08-06 09:53 views 1

data type ,astype shifting clause

import numpy as npprint ( Specify the data type when generating an array )arr = np.array([1, 2, 3], dtype = np.float64)print (arr.dtype)arr = np.ar...
2020-08-06 09:53 views 4
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