Actually:
First, use Windows as the environment:
Logs in Windows
Overview of log file types:1.The error log records the problems that occur when you start, run, or stop mysqld.My. ini configuration information:# Enter a name for the error log file.
Program Introductionthe software involved
BIND: A popular domain name resolution server, we can set which domain names need to take the encrypted line.
Stunnel: The TCP protocol is encrypted with TLS, that is, an encrypted line is
Python history1989, a Boring Christmas night, Dutch Guido wrote Python, named after his favorite comic name, "Monty Python's Flying Circus."Python version
2.X developed to 2.7.
3.Xs started in 2008, 3.5 posted on September 2015, 3.6 released
5.1 PageRank
5.1.1 early search engines and term Spam
As people began to use search engines to find their way around the Web, unethical people saw the opportunity to fool search engines into leading people to their page.
Techniques for fooling
operator OverloadingKey concepts:1. Operator overloading allows the class to intercept regular Python operations.2. The class can overload all Python expression operators.3. Classes can also overload the built-in operations such as printing,
Lexical analysis (Lexical analysis): Analyze whether a word made up of characters is legal and, if there is no problem, produces a word flow.
Parsing (syntactic analysis): Analyze whether a sentence consisting of words is legal, and if there is no
Lexical Analysis: analyzes whether a word composed of characters is valid. If no problem exists, a word flow is generated.
Syntactic Analysis: analyzes whether a sentence composed of words is legal. If no problem exists, a syntax tree is generated.
import Java.util.Random; Public classSort { PublicSort () {//TODO auto-generated Constructor stub } //bubble Sort, the sort of a total of n-1, the number of comparisons per trip is decreasing. Stable sequencing with O (n^2) complexity.
This article mainly introduces LexicalAnalysis and SyntacticAnalysis in Python. For more information, see Lexical Analysis ): analyze whether a word composed of characters is valid. if there is no problem, a word stream is generated.
Syntactic
Single-chip microcomputer tutorial 4. C Language Foundation and realization of running lightsC language, people who have not touched the computer programming language will see it very mysterious, it feels very difficult, and in my opinion, C
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