encoding – Page 2

Thoroughly understand the encoding and decoding principles of base64

Background The encoding principle of base64 is explained more online, but the decoding principle is less explained, and the internal implementation principle is not analyzed. If you want to thoroughly understand the encoding and decoding principles of base64, please read this article patiently, and you will definitely gain something. Involving the concepts of algorithms and […]

python base and encoding

1. Base system All underlying data in the computer exists in the form of 010101 (pictures, text, videos, etc.). Binary and hexadecimal conversion v1 = bin(25) # Convert decimal to binary print(v1) # “0b11001” v2 = oct(23) # Convert decimal to octal print(v2) # “0o27” v3 = hex(28) # Convert decimal to hexadecimal print(v3) # […]

[PB Renewal 02] Encryption and encoding in Oracle, etc.

For usage notes on implementing Md5/Base64/Aes + Base64/UrlEncode and other encryption codes in Oracle, please refer to other people’s posts. Oracle 11g has been personally tested and effective. 1. Implementing Md5 encryption in Oracle SELECT lower(MD5(‘白龙马5217’)) FROM dual; –Return result 72853926982028ab8219921ad2918b8f –or select utl_raw.cast_to_raw(DBMS_OBFUSCATION_TOOLKIT.MD5(INPUT_STRING => ‘白龙马5217’)) from dual –Return result 72853926982028AB8219921AD2918B8F 2. Implementing Base64 encoding/decoding […]

Solve OSError: cannot open resource self.font = core.getfont(font, size, index, encoding, layout_engin

Solve OSError: cannot open resource self.font = core.getfont(font, size, index, encoding, layout_engin When programming in Python, we sometimes encounter the error??OSError: cannot open resource self.font = core.getfont(font, size, index, encoding, layout_engin??. This error is usually It is caused by missing font files or incorrect font file paths. This article will explain how to solve this […]

Word2vec (CBOW, Skip-gram) word vector training based on sentencepiece tool and unicode encoding word segmentation, combined with TextCNN model, replaces the initial word vector for text classification tasks

Word2vec (CBOW, Skip-gram) word vector training based on sentencepiece tool and unicode encoding word segmentation, combined with TextCNN model, replacing the initial word vector for text classification tasks The experiment done by the blogger this time is difficult, but the idea is very good. I think those with poor foundation may not understand my question. […]

Solving SyntaxError: Non-UTF-8 code starting with \xc0 in file but no encoding declared

Table of Contents Solving SyntaxError: Non-UTF-8 code starting with \xc0 in file but no encoding declared wrong reason Solution 1. Declare file encoding 2. Convert encoding 3. Remove non-UTF-8 characters 4. Use Unicode escaping Practical application scenarios What is UTF-8 encoding? Characteristics of UTF-8 encoding Application of UTF-8 encoding Solve SyntaxError: Non-UTF-8 code starting with […]

Why is it said that Decoder and Encoder are the core components of Netty? How does Netty use the template method pattern to efficiently complete decoding and encoding? A thorough analysis in 10,000 words

The job of the Netty inbound processor is the packet decoding and business processing of the IO processing operation. During the inbound processing, the bottom layer of Netty first reads the ByteBuf binary data, and finally needs to convert it into a java POJO object. This process requires a Decoder to complete. The job of […]

Python interface test handles parameter and encoding issues of escape characters!

Introduction The author, after being very busy at work, decided to take time to record the problems encountered when testing the interface for future reference. It can also be provided to those partners who are learning interface testing to avoid detours. If it helps you, give it a like, thank you. Today’s article mainly talks […]

[Radar signal analysis] Time domain analysis of PSK phase encoding signal with Matlab code

?About the author: A Matlab simulation developer who loves scientific research. He cultivates his mind and improves his technology simultaneously. For cooperation on MATLAB projects, please send a private message. Personal homepage: Matlab Research Studio Personal credo: Investigate things to gain knowledge. For more complete Matlab code and simulation customization content, click Intelligent optimization algorithm […]