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Syntax analysis of turtle program 1. Library reference and import Tuttle Python drawing example code: import turtle turtle.setup(650.350.200.200) turtle.penup() turtle.fd(-250) turtle.pendown() turtle.pensize(25) turtle.pencolor("purple") turtle.seth(-40) for i in range(4): turtle.circle(40,80) turtle.circle(-40,80) turtle.circle(40, ...

Python comments Block and inline comments # Block comments are generally used to describe the code below if a > 10 : # according to PEP8 Specification, block annotation with a#And a space, unless indenting is required in block comments a = 10 else: # A block comment should have the same indentation as the code it is commenting ...

1. Start with the simplest neural network In the process of learning machine learning, everyone should have a basic concept of neural network: neural network is like a function fitter, it can fit any function. def NeuralNetwork(inputs, weight): # Define Neural Network prediction = inputs * weight # Multiply data by weight return pre ...

catalogue 1, Getting started with python 2, python indent 3, Python comments 1) Single line note 2) Multiline comment 4, Python variables 1) Variable definition understanding 2) Variable name naming 3) Assign multiple values 4) Output variable 5) Global and local variables, global keywords 6) exercises 1, Getting started with pyth ...

    Features of the collection: 1. There are no duplicate elements, and the elements are stored in disorder (so the set has no subscripts and slices) 2. When used, {} is distinguished from Dictionary: when the element in curly braces is not a key value pair, it is a collection 3. The bottom layer of the collection is actually encapsulate ...

This tutorial is for beginners to learn python Less nonsense, let's start the python tutorial Let's use tkinter to build the basic interface of the script Private letter Xiaobian 01 can obtain a large number of Python learning resources import tkinter as tk#[size=3] first import tkinter, and install it into python with pip in advance ( ...

Preface I am an undergraduate in Nanjing Agricultural University. Because I can't grab classes, I wrote a code for grabbing classes, which is a little bug, but the effect is still good. Small white studies, big man don't spray Tip: The following is the main body of this article. The following cases can be used as reference. 1. Pre-prepa ...

catalogue Introduction to serialization and deserialization json module pickle module Compare the difference between json module and pickle module Introduction to serialization and deserialization Through file operation, we can write strings to a local file. However, if it is an object (such as list, dictionary, tuple, etc.), it cannot ...

Previous: Reference blog 1. Exception handling reference resources 1.1 an exception try: Code that may cause exceptions except Exception1: exception handling try: a = int(input("First integer")) b = int(input("Second integer")) result = a/b print("The result is", result) except ZeroDivisionError: print("Divisor ...

After downloading, open the command line, use the cd command to switch to the path of the file, and execute pip install wordcloud catalogue Word cloud No. 1: and that government of the people, by the people, for the people, shall not perish from the earth No. 2 word cloud: facing the sea, spring flowers bloom (text part: from tomorrow on, ...