Shopping cart group homework

1. Team members and task assignment classfull nametaskNetwork 2014LAN suyuResponsible for coding related work: coding specification, object-oriented design, function designNetwork 2014Liu YuhengResponsible for writing blog related work: preliminary investigation, blog production 2. Preliminary investigation (taking Jingdong Mall interface ...

Posted by yoda699 on Thu, 21 Oct 2021 17:19:00 +0200

C# form applies DataGridView, and uses database (Sql and MySQl) to bind data source to DataGridView to obtain data

preface Previously, we used class library objects for data binding. If you don't understand children's shoes, you can go to the previous article of the blogger. Today, I'll show you how to use the database to bind data to the datadriveview. In fact, it's also very simple. Let's roll it up. Once a day to prevent decadence 1.1 let's get to t ...

Posted by arjan.top on Thu, 21 Oct 2021 16:52:26 +0200

C language uses stm32 minimum development board to light up the running light

catalogue 1, Experimental preparation 2, Find address 3, Programming 1. Open keil5 to create a project selection chip (stm32F103c8 I use here)   2. Set chip parameters 3. Add function file 4. Write code   5. Compile and generate hex file 4, Burning and achievements 1. Connection 2. Start the burning procedure   3. E ...

Posted by Kinsbane on Thu, 21 Oct 2021 16:31:55 +0200

[ORACLE] About dbms_ Some research on cloud package mechanism

Preface Reference resources https://oracle-base.com/articles/21c/dbms_cloud-package Pressed for a long time, ready to start writing, found that someone has sent similar, https://blog.csdn.net/stevensxiao/article/details/118578785 But it's a bit different from what I do, so I'll write one. The title of this article was meant to be called [OR ...

Posted by mort on Thu, 21 Oct 2021 16:14:37 +0200

Hadoop, zookeeper, spark installation

New Folder: Compressed Package Folder, Software Installation Directory Folder The following does not indicate which host operations are all Master host operations # Recursively Create Compressed Package Folder mkdir -p /usr/tar # Recursively create the software installation directory folder mkdir -p /usr/apps Install upload and color code c ...

Posted by Skepsis on Thu, 21 Oct 2021 15:31:14 +0200

All algorithms for breadth and depth traversal of binary tree

All algorithms for breadth and depth traversal of binary tree For the traversal of binary tree, there are two categories: breadth traversal and depth traversal. For depth traversal, it is divided into first order, middle order and second order. These three first, middle and second order can be written by recursive and non recursive algorithms. ...

Posted by iMiles on Thu, 21 Oct 2021 09:42:09 +0200

[Java]_ [primary]_ [replace multiple placeholders for strings with multiple values using regular efficient]

scene When developing Java programs based on template content, such as an email content template, place placeholders $email,$name, etc. in the content as symbols to replace the actual content. So what can we do at this time to reduce the generation of unnecessary String strings, so as to reduce the memory consumption and achieve the purpose of ...

Posted by Vbabiy on Thu, 21 Oct 2021 07:53:10 +0200

C language beginner

Key points of this chapter: Why should we learn c language What is? C language first C Language program data type Variable, constant character string+Escape character+notes Select statement Circular statement 1. Why should we learn c language? C produces all things The foundation of programming The first choice for long-te ...

Posted by itandme on Thu, 21 Oct 2021 05:29:35 +0200

JavaScript Array method sorting (Part 2)

1. includes() Method is used to determine whether an array contains a specified value. If so, return   true, otherwise false. // arr.includes(searchElement) // arr.includes(searchElement, fromIndex) /* searchElement must. The element value to find. fromIndex Optional. Search for searchElement starting at this ...

Posted by dr_freak on Thu, 21 Oct 2021 04:21:33 +0200

Ceph test tool summary

fio Fio was originally written to avoid the trouble of writing special test case programs when testing a specific workload for performance reasons or finding / reproducing errors. Writing such a test application can be cumbersome, especially if you must do so often. Therefore, I need a tool that can simulate a given I / O workload without writ ...

Posted by Bhaal on Thu, 21 Oct 2021 02:28:45 +0200