SPL installation and basic use (II)

Download and install

http://www.raqsoft.com.cn/download/download-jsq

After getting the installation package, execute the installation program , Follow the prompts step by step ：

1. Run setup

2. Follow the instructions , Click next in turn , Accept the license agreement

3. Select installation path , Click on the install

4. Complete the installation .

Basic use of set solver

Just to familiarize you , Use of concentrator , The details inside , I'll talk about it in detail later

First open the set solver , Create a new grid file

In the aggregator , If a cell has a value , So in the calculation , You can directly use the cell name , Reference cell values . Cells with values can be Constant lattice 、 Computational lattice Cell names consist of column number letters and row number integers .

Pictured above : =1+1 Will be 1+1=2 The value of A1 This cell , stay SPL Cell variables must be capitalized

Pictured above : obtain A1 The variable of +10 And then to A2

So how to see the result of the calculation ? , There is a run button in the toolbar of the integrator , When clicked , Will calculate the operation of all cells

Then we click on the cell , You will find the value on the right ,( Note that the color of the calculated cells will change ( The default is yellow ))

I don't want to calculate everything. I just want to see the result of a certain cell , Certainly. , There is a computer button on the toolbar , Select the cell to be calculated , With this button, we can calculate the cells one by one , But in the process of using, we need to pay attention to , If in the currently calculated cell , Reference to other cells , Then we need to calculate the values of other cells first , Otherwise, the referenced cell is invalid

Miscalculation :

Correct calculation

Of course, in the set solver , You can also copy custom variables , Branch condition , loop , operation , Functions, etc , It can also operate multiple data sources at the same time , It's very powerful .

But what interests me most is , When put SPL The script is finished , We can also associate scripts with code , Run the script in a similar way to running stored procedures ( You can pass variables ), In this way, it can be seamlessly connected with the program , Moreover, the script content can be changed in real time and the program can realize hot update

If you think about the slightly larger projects now, they are basically from multiple data sources ( Maybe each data source is not a product yet ,mysql,oracle ,…), Even between multiple project data , There is some data sharing

Then operate these libraries at the same time java Is it painful in the code , This is just one of them , A lot of times , We need to collect excel Table data , And these tabular data sometimes change , Once the structure changes, then in java Is it about to rewrite the code in , These in spl Can be well solved in , The above content will be discussed in the following tutorial One Explain and wait patiently

The order of calculation is ( important )

The order of calculation is : from A1 Start , From left to right , From top to bottom , Calculate all cells that are not empty , Comments are automatically skipped

Default options

Default environment

Default colors