Data driven analysis practice 8 - promotion model
Data driven analysis practice 8
Lifting model
When dealing with growth related issues, a very important key factor is efficiency. First, we need to improve time efficiency, which means rapid conception, practice, learning and iteration; The second is the cost, which can make greater profits under the same budget, time and effort.
User segmen ...
Added by betportal on Fri, 04 Feb 2022 06:42:19 +0200
Introduction to python list of basic data types for python development
Key points of this section
1. Let students understand the meaning of list data types
2. Let students master the definition and characteristics of the list
3. The trainees can master the common operation of the list and understand other factory methods
4. Let the students know the range method and be able to convert the data generated by the ...
Added by adaykin on Fri, 04 Feb 2022 03:03:19 +0200
[Python black technology] lxml library crawler actual combat - crawling famous saying sentences controlled by sentences (nanny graphics + implementation code)
Welcome to pay attention "Python black technology" series , continuously updating Welcome to pay attention "Python black technology" series , continuously updating
Realization effect
Crawling content
csv file obtained
Realization idea
Import related libraries usedAnalyze and get the url of crawling keywor ...
Added by clewis4343 on Fri, 04 Feb 2022 01:04:54 +0200
Python - mmap shared memory
In the process of program running, you may encounter the need for information interaction between processes or languages of different platforms. The existence of hard disk is a solution, but the speed is too slow. python's mmap library provides a practical scheme of shared memory, which can complete the interaction of information between memory ...
Added by Threehearts on Thu, 03 Feb 2022 22:06:14 +0200
[Python learning notes] Chapter 2 variables and simple data types in Python Programming: from introduction to practice
"Python Programming: from introduction to practice" is a book that I think is very suitable for Xiaobai's introduction. The first part explains the basic knowledge, and the last part is three projects using python.
This article is a note of my personal study. Most of the content comes from textbooks, and some are knowledge suppl ...
Added by Altec on Thu, 03 Feb 2022 20:43:27 +0200
Synchronous comparison of Chinese version of beeware tutorial
Mobile phone code words are easy to make mistakes and leak. Some links are difficult to add. Go back and touch the computer and change it. Please forgive me for the time being
Product Name: Bee set Ingredients: toga, briefcase, rubicon objectc, rubicon java 😂 Another fatal weakness is that all his files have to be downloaded from the net ...
Added by funguse on Thu, 03 Feb 2022 20:40:18 +0200
yolov5 python API (for other programs to call)
Your yolov5 🚀 Is it limited to detect py? If other programs want to call yolov5, you need to make a detect python API for python. python has objects everywhere. Making the detect API is actually making the detect class.
preface
yolov5 Source code version: as of 2022.2.3
Link: https://github.com/ultralytics/yolov5
As a &quo ...
Added by ecco on Thu, 03 Feb 2022 20:40:41 +0200
Python Learn 06 (Dictionary)
Dictionaries are an unordered and variable sequence of key-value pairs in which each element is a key-value pair and contains: key objects and value objects. You can quickly get, delete and update the corresponding Value Object through the Key Object. The corresponding Value Object is found in the dictionary through the Key Object. Keys are arb ...
Added by netmastan on Thu, 03 Feb 2022 19:41:51 +0200
Bug-type exception handling common to python exceptions
Common types of bugs
1. SyntaxError caused by carelessness
1,
age=input('Please enter your age:')
if age>=18:
print("Adults need to do things...")
#Error, TypeError:'>='not supported between instances of'str' and'int'
#Because the input input return value is a string, it cannot be compared to an integer type number
#Solution: Add ...
Added by Rayne on Thu, 03 Feb 2022 19:31:36 +0200
08_Python_ Loop statement
Loop statement
loop
target
Three Processes of Procedurefor loop basic usewhile loop basic usebreak and continuewhile loop nesting
01. Three Processes of Procedure
There are three processes in program development:
Sequence - Execute code from top to bottom in sequenceBranch - The branch that determines the code to execute based on condi ...
Added by thewooleymammoth on Thu, 03 Feb 2022 19:21:06 +0200