python day5 lambda, built-in functions, file manipulation, bubble sorting and decorators

Catalog python day 5 1. Anonymous function lambda 2. python's built-in functions 3. python file operation 4. Recursive function 5. Bubble Sorting 6. Decorators python day 5 2019/10/08 Learning materials come from the education of older boys 1. Anonymous function la ...

Posted on Thu, 10 Oct 2019 08:18:04 -0400 by dolphinsnot

Django's Request Data Format

Django default parsing format application/x-www-form-urlencoded Requirements: a. application/x-www-form-urlencoded b. The data format must also be: a = 1 & b = 1 What this article does is to retrieve in the background through different request data formats and different ways of sending requests. (Interested friends can read Django's re ...

Posted on Thu, 10 Oct 2019 08:00:37 -0400 by Miker

Pthon of Express Bird Logistics Single Number Instant Query api Function

Before writing express delivery, there were only examples of php and. net on the official website, and I used the relevant functions of python package to trample a lot of holes before I came out and shared my method. Firstly, the picture above shows the results. For technical documentation, please refer to the Express Bird website api: htt ...

Posted on Thu, 10 Oct 2019 07:14:46 -0400 by ashell

Re-exploration of Delphi String

When I was idle, I began to pick up Delphi's source code. This time I found a more interesting function called StringCodePage, which returns the CodePage of the incoming string. As for what CodePage, it is considered to be character encoding. First test one: var s1: AnsiString; s2: WideString; s3: UTF8String; cp1, cp2, cp3: Word; begin ...

Posted on Thu, 10 Oct 2019 05:45:14 -0400 by spikypunker

Core Code Sharing for Directional Collection of Website email Address

Mailbox collection demo: http://www.jsanai.com/emailco...Principle: 1. According to the url address to be collected, the html content of the page is obtained, and then the url list and mailbox address list of the page are matched regularly. 2. There are two asynchronous threads after getting url list and mailbox: Mail address preservation; (2) ...

Posted on Thu, 10 Oct 2019 02:38:10 -0400 by creativodev

Basic Writing of RecyclerView in Android

What? You told me you wouldn't use Recycler View? How can this be, in fact, RecyclerView is still very powerful. Maybe some old programmers are still used to ListView. I like to use ListView, too. But it is undeniable that some complex lists are better displayed with RecyclerView. Here we show you th ...

Posted on Thu, 10 Oct 2019 00:54:02 -0400 by joshuamd3

Using io stream to realize file copy, form submission, file upload and download

Preface: Files are stored on hard disks. To copy from one place to another, it is necessary to streaming files into memory and from memory to a specified place. Slow copy //Get the file. Note that you need the Test.img file in this directory. File file = new File("E:\\work\\Test.img"); try { // ...

Posted on Wed, 09 Oct 2019 22:52:36 -0400 by Dani34

Python Training Camp 45 days - Day08 (File Operation)

Catalog 1. Introduction to Document Operation 2. Reading and Writing of Documents 2.1 Text File 2.2 binary file 2.3 JSON file 3. Location, renaming and deletion of files 4. Relevant operations of folders 1. Introduction to Document Operation You should have heard a ...

Posted on Wed, 09 Oct 2019 22:50:36 -0400 by sheen.andola

Bottom SheetDialog usage in Android (bottom pop-up Dialog)

As we all know, many menus of IOS pop up from the bottom, which is a good way to show, and the ugly Android default bomb box has always been everyone must abandon, so how do we Android make the corresponding effect bomb box. Here we will introduce this approach. Bottom pop-up layout dialog_goods_sk ...

Posted on Wed, 09 Oct 2019 22:12:42 -0400 by biocyberman

[Redis5 Source Learning] Analysis of scan of redis command

Grape Command grammar Implication of order: Incrementally iterates over a set element. Command format: SCAN cursor [MATCH pattern] [COUNT count] Command actual combat: redis 127.0.0.1:6379> scan 0 1) "17" 2) 1) "key:12" 2) "key:8" 3) "key:4" 4) "key:14" 5) "key:16" 6) "key:17" 7) "key:15" 8) "key:10" 9) "key ...

Posted on Wed, 09 Oct 2019 19:31:41 -0400 by marvelade