1. array and Variability
When an array is created, it is bound to an object.
L1 = [1, 2, 3] L2 = L1L1[0] = 4 print(L2)#=》[4, 2, 3]
L2 = L1 means that L2 and L1 point to the same object, while L1 [0] = 4 changes the value of the object, so the final
AlgorithmAn algorithm is a set of clearly defined rules used to solve a problem within a limited step. In layman's terms, it is the process of solving computer problems. In this process, whether it is to form a problem-solving idea or programming,
Original pseudocode: pseudo code by Naomi Nishimura
Translated by Liu Jianwen (http://blog.csdn.net/keminlau)
In the text and lectures, algorithms will often be expressed in pseudo docode, a mixture of code and English (for speci should C not
Lecture 101Backpack ProblemsThis is the most basic problem with a backpack. Each item can be placed at most once.
Lecture 2Complete backpack ProblemsThe second basic model of a backpack problem, where each item can be placed unlimited times.
Lecture
The so-called debugger is actually a very broad concept. Any program that can monitor the execution process of other programs in some form can be called a debugger. On Windows, the debugger can be divided into three types based on its implementation
Customer-Server programming method and Client Server programmingCustomer-Server programming method
The Client Server programming method is thoroughly described in the first volume of unix network programming. This article omitted the coding details
This article mainly introduces the Python Functional Programming Guide (ii): Starting from the function, this article explains the definition of a function, the use of function assignment, closures, as parameters, and so on, the need for friends can
Analysis of High-performance I/O models
Analysis of High-performance IO Models
High-performance I/O models are often required for Server programming. There are four common I/O models:
(1) Synchronous Blocking I/O (Blocking IO): the traditional
C ++ object model: How does a compiler process a function to return an object?1. output that is inconsistent with experience we know that when one of the following three situations occurs, the copy constructor of the class corresponding to the
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Use design patterns to improve
Program Library reuse is required for large-scale program project development. However, 23 standard design patterns are mentioned in the design patterns
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