When a Web server communicates with an app server, it often uses different languages on both ends. For example, this time I met PHP and C.PHP as a high-level language, a variety of convenient library functions are readily accessible, in the PHP crc32
The example in this article describes Python's method for finding CRC32 values. Share to everyone for your reference. The implementation methods are as follows:
To ask for CRC value, import BINASCII beforeBinascii.crc32 (v) The CRC32 value of V is
Python is a programming language for rapid development of software, its syntax is simple, easy to grasp, but there is a slow implementation of problems, and in dealing with some problems, such as access to computer hardware systems, access to media
This article mainly introduces the python implementation method of RC4 file encryption. The example analyzes the principle of RC4 file encryption and Python implementation skills, for more information about how to implement RC4 file encryption in
Consider the following Python code snippets. Perform some operations on the data in the file and save the results back to the file:
Copy codeThe Code is as follows:With open (filename) as f:Input = f. read ()Output = do_something (input)With open
How to use Python for stable and reliable file operations requires updating files. Although most programmers know that unexpected things will happen when I/O is executed, I often see some abnormal and naive code. In this article, I would like to
Lai Yonghao (http://laiyonghao.com)
Question 1
In a later version of Python, when two int values overflow, it automatically converts the result to the long type. For example:
>>> 0x7fffffff + 12147483648l
This feature is good, but it has
The program needs to update the file. Although most programmers know that unexpected things can happen when I am performing I/O, I often see some unusually naïve code. In this article, I want to share some insights into how I can improve I/O
The module implements a common interface for many secure hashing and message digest algorithms, including FIPS secure hashing algorithms: SHA1, SHA224, SHA256, SHA384 and SHA512 algorithms (defined in FIPS 180-2), and the MD5 algorithm for RSA (in
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