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In Python interactive mode, you can directly execute the corresponding script without Python interpreter. 1. 1) How to open interactive mode: Under Windows: Find "command prompt" in the start menu and open it to enter the command line mode: Enter Python in the command line mode to enter the interactive mode of Python Under Linux: D ...

0x00 introduction to pan micro OA Founded in 2001 and headquartered in Shanghai, fanwei focuses on the field of collaborative management OA software, and is committed to taking collaborative OA as the core to help enterprises build a new mobile office platform. 0x01 vulnerability description SQL injection vulnerability exists in Pan ...

This article mainly records the process of using machine learning to solve the problems I encounter. catalogue 1, Problem description 2, Data processing 2.1 treatment of missing values 2.2 abnormal value handling 2.3 characteristic Engineering 3, Dimensionality reduction 4, Model establishment 5, Model training 1, Problem description ...

Python Basics (classes and objects) 1, Two ideas of programming Process oriented and object-oriented Process orientedobject-orienteddifferenceThings are relatively simple and can be solved by linear thinkingThings are complicated and cannot be solved by simple linear thinking Common ground: both object-oriented and process oriented are a way ...

Contents of this meeting: Python collects the data content of the website and saves the detailed information in PDF Development environment used this time: Python 3.8Pycham 2021.2 Professional EditionThe wkhtmltopdf installation package is required to save the PDF You can click to receive the above environment Module usage: Module to be in ...

signal and slot Signal and slot are the core mechanism of PyQt. A signal is a message emitted by an object or control Slot refers to the code that intercepts these transmitted signals. Slot is essentially a function or method Take [button click event] as an example. When a button is clicked, the button will send click messages to the outsid ...

Python notes Object oriented Foundation I object-oriented Object oriented Encyclopedia II Classes and objects 1. Classes and objects Encyclopedia of classes and objects class Encyclopedia like Class is a general term for a series of things with the same characteristics and behavior. It is an abstract con ...

Python notes File operation I Role of file operation Function: store some contents (data) so that the next execution of the program can be used directly without remaking. II Basic operation of files 1. Document operation steps Open fileRead and write operationsClose file Note: it can refer to opening and closing files wi ...

It is used to wait for the key. When the user presses the keyboard, the statement will be executed and its return value will be obtained. When delay > 0, the program will wait for the user's key to trigger within a given delay time or wait for a delay time, and the program will continue to execute. If delay = 0, it means that the user must c ...

1. Main content of the article This blog is devoted to explaining the skills to encapsulate code in PyCharm and invoke it in JupyterNoteBook. Through the learning of this blog, taking KNN algorithm as an example, it is intended to grasp the skills of functional code in plain language. It takes about 5 minutes to read this blog. Note: the c ...