A case study of machine learning in Boston area

The goal of regression problem prediction is continuous variable data description # Import Boston house price data reader from sklearn.datasets from sklearn.datasets import load_boston # Read the house price data from and store it in the variable boston boston = load_boston # Output data description ...

Posted by archbeta on Mon, 10 Feb 2020 07:53:24 -0800

Getting started with CSS

Introduction to CSS (1) What is CSS? How can CSS be used? CSS selector (Key + difficult) Beautify web pages (text, shadows, hyperlinks, lists, gradients...) Box model Float Location Web location (special effects) 1. What is CSS 1.1 what is CSS Cascading Style Sheet cascading styl ...

Posted by msurabbott on Mon, 10 Feb 2020 05:24:36 -0800

Quick learn - MyBatis map file

Chapter 4 MyBatis mapping file 4.1 introduction to mybatis mapping file The real power of MyBatis lies in its mapping statement and its magic. Because of its extraordinary power, the XML file of mapper is relatively simple. If you compare it with JDBC code with the same function, you will immediate ...

Posted by wtg21.org on Mon, 10 Feb 2020 04:20:58 -0800

[JAVA] HTTP protocol learning notes

1. introduction HyperText Transfer Protocol (HTTP) is a standard (TCP) for client (user) and server (website) requests and responses. It is an application layer protocol based on TCP/IP protocol. Request response mode Stateless protocol Do not save the communication state between the request and the ...

Posted by luked23 on Sun, 09 Feb 2020 23:50:03 -0800

[Python reptile actual combat] statistics of OJ test record statistics of Codeforces test record

Article directory 1, Demand analysis 2, Specific implementation 3, Full code I don't know if other people will do this. Anyway, as an Acmer who has been in the pit for more than one year, sometimes I want to know how many problems I have written. Of course, I can go to OJ for one problem, but it's ...

Posted by 87dave87 on Sun, 09 Feb 2020 23:09:09 -0800

SQL injection filter for WebApi

Development tools: Visual Studio 2017 C × version: C × 7.1 The most effective way to prevent SQL injection is to use parameterized queries when invoking the database. But if you are taking over an old WebApi project and don't want to change the code of many database access layers, how to do it. My solution is to add a filter. Write ...

Posted by njm on Sun, 09 Feb 2020 10:56:35 -0800

I want to play rough

Hello, I've met again. These days, exams + all kinds of things have delayed me a little. I finally made another case Or look at the post of Zhihu God, the post of Wakingup Don't talk much ''' //According to the great God of knowledge //Code Author: Gao Jiale ''' ##Import various libraries first import re ...

Posted by sualcavab on Sun, 09 Feb 2020 10:02:52 -0800

Bootstrap (3) pull down menu and pager

drop-down menu A switchable, contextual menu for displaying connection fission Meaning of custom attribute in drop-down menu Data - * trigger, interactive aria - * and role classes provide services for inconvenient people, such as screen readers aria - * generally indicates the behavior, and the current status of role (sep ...

Posted by bigtimslim on Sat, 08 Feb 2020 09:50:59 -0800

The third day of learning Vue.js -- dynamic binding style and calculation properties

The third day of learning Vue.js -- dynamic binding style and calculation properties Today is the Lantern Festival. First of all, I wish everyone a happy Lantern Festival. I also wish the medical staff on the front line a happy festival. I hope the epidemic will pass soon. Come on Following the dynami ...

Posted by eelmitchell on Sat, 08 Feb 2020 03:54:08 -0800

Iterator Mode and Java Iterator Source

Iterator mode Iterator mode is a design mode that separates the addition and deletion of a set from the sequential traversal of the set.Collections are responsible for additions, deletions, and iterators are responsible for sequential traversal of the collection's internal classes.Java's Iterator is a ...

Posted by gsv2com on Fri, 07 Feb 2020 20:47:32 -0800