Programmer Group

matplotlib is inspired by MATLAB. Matlab is a widely used language and tool in the field of data drawing. MATLAB language is process oriented. Using function call, matlab can easily use a line of command to draw lines, and then use a series of functions to adjust the results. Matplotlib has a set of dra ...

The use of ObservableCollection in two way binding notification mechanism in WPF </div> The observablecollection < T > class in msdn represents a dynamic data collection that provides notifications when items are added, removed, or the entire list is refreshed. In many cases ...

In the previous blog, the author introduced LU decomposition method for solving linear equations. This paper introduces a new method, iterative method. There are many iterative methods for solving linear equations, including Jacobi iterative method. What is its principle? There are the following linear ...

Chapter 1 File class 1.1 overview (API) java.io.File class is an abstract representation of path names of files and directories. It is mainly used for creating, finding and deleting files and directories (representing folders). Directory means folder java encapsulates the files and folders (directo ...

When many desktop software is opened, there are options such as remembering password, and it can also be read without networking. This is because it writes the configuration information locally, reads the local configuration information before opening each time, and then loads the relevant configuratio ...

Yesterday's tabs window was very satisfactory. Today, we have made it possible to change the display style according to its size. When its width is too small, the tab page can float and dock on one side. Specific effect:Left Right Always like simple and clear things, so want to achieve a little more simple, but reality does not allow ah, the ...

Single thread IP address resolution Article directory Single thread IP address resolution Target program Implementation ideas Implementation process Try the process in the console Design WPF interface Background code Knowledge required IP address port The class of IP address translation in C ා ...

Original pickle seven, reprint please indicate the source. Methods used: Mysql database, python language, regular expression re With the comment url obtained (url method to get JD comments) , now we can crawl the user nickname and url. As a beginner, I use the regular expression to match the url data.1, ...

What I have is an object with the IsReadOnly property. If this property is true, I want to set the IsEnabled property on the Button (for example) to false. I want to believe that I can do this as easily as isenabled '{binding path =! IsReadOnly}', but it doesn't apply to WPF. Do I have to go through all the style settings? It seems too l ...

Service concept: Virtual private network, in fact, is to open up a virtual private line in the network Application classification: 1. Host remote access * * * service 2. Services between enterprise networks 3. Services between IDC rooms of Internet companies Transmission data protocol mode: Establishmen ...