Pygame: aircraft war 7 (detailed interpretation)

Article directory (1) Complete the function of giving players three game opportunities 1. Draw player's life in the bottom right corner of the screen 3 seconds after player's Resurrection (2) Draw the end of the game 1. Attach the solution to solve the problem that there is no record.text file at ...

Posted on Mon, 17 Feb 2020 01:18:31 -0800 by Grim...

Natural Language Learning 15-Implementation of Chinese Named Entity Recognition Model Based on CRF

Conditional Random Field (CRF) Conditional Random Fields (CRF) is a conditional probability distribution model for a given set of input sequences and another set of output sequences. A random field is a whole composed of several locations. When a value is randomly assigned to each location accordin ...

Posted on Sun, 16 Feb 2020 18:53:49 -0800 by gofer

Feign's understanding and examples

1, What is Feign Feign is a lightweight open-source Rest client of Netflix company. Spring cloud encapsulates feign. Feign integrates Ribbon by default to realize client load balancing calls. To use feign, you only need to define an interface and configure it with annotations (just add annotations o ...

Posted on Sun, 16 Feb 2020 05:23:45 -0800 by ManInBlack

Event handling of servicemanager

stay Start process of servicemanager In, you can see that servicemanager will enter the binder_loop() to start processing events after all preparations are ready. This note focuses on how to handle these core events. Command resolution: bind_parse() First of all, the command should be parsed and diffe ...

Posted on Sun, 16 Feb 2020 03:26:51 -0800 by m5638829

Algorithm notes: Zuoshen primary bubbling, selection, insertion, merging and sorting

Time complexity Constant time operation: if an operation has nothing to do with the amount of data, each operation is completed in a fixed time, which is called constant operation. Time complexity is an indicator of the number of constant operations in an algorithm process. It is often expressed by O ...

Posted on Sun, 16 Feb 2020 00:29:56 -0800 by dadamssg

Ten common algorithms

10, Ten common sorting algorithms Article directory 10, Ten common sorting algorithms 1. Binary search (non recursive) 2. Divide and conquer algorithm 3. Dynamic planning 4. KMP algorithm 4.1 violence matching algorithm 4.2KMP matching algorithm 5. Greedy algorithm 6. Prim algorithm 7, Kruskal a ...

Posted on Sat, 15 Feb 2020 23:29:19 -0800 by Double_M

Using Leader Selection in Kubernetes to realize high availability of components

In Kubernetes, Kube scheduler and Kube controller manager are usually deployed with multiple replicas to ensure high availability, while there is only one instance that is actually working. Here we use the leader selection mechanism to ensure that the leader is in working state, and after the leader is hung up, select a new leader from other no ...

Posted on Sat, 15 Feb 2020 11:28:58 -0800 by Canabalooza

Java implementation of merging algorithm

Related characteristics Time complexity is O(nlogn) in the best or worst case The complexity of auxiliary space is O(n) Stable Both sequential storage and linked list storage basic thought Merge sorting is an effective sorting algorithm based on merge operation. This algorithm is a typical application of Divide and Conquer. ...

Posted on Sat, 15 Feb 2020 10:38:00 -0800 by jswash

Learning Log No. 6

1. By programming, count the number of 9 in 1~n #include <stdio.h> void fun(int n) { int i; int temp; int count = 0; int b; for(i = 1;i <= n;i++) { temp = i; while(temp != 0) { b=temp % 10; temp=temp / 10; if(b == 9) { count++; } } } printf("The result is: %d\n",count); } int ...

Posted on Fri, 14 Feb 2020 08:34:30 -0800 by jtapoling

Java utility classes (9)

1. Utility class: 9 utility classes: 1.1 when will enumeration be used? Enumeration is a type;   public enum enumeration name {/ / defines the enumeration class }   The enumeration can be defined as a new file or in a class of practical enumeration, Such as: package com.example.test; import com.example.test.Stu ...

Posted on Thu, 13 Feb 2020 09:53:58 -0800 by bassdog65