Shulou(Shulou.com)06/02 Report--

This article mainly introduces "how to apply C#interface programming". In daily operation, I believe many people have doubts about how to apply C#interface programming. Xiaobian consulted various materials and sorted out simple and easy operation methods. I hope to help you answer the doubts about "how to apply C#interface programming"! Next, please follow the small series to learn together!

Programming for C#interfaces helps achieve the "low coupling" requirement in object-oriented development and design. For example: a company has a special printer, can also use a year, a year later may be replaced by another printer, both special and expensive printers. So now the program hopes to change the printer after a small number of modifications are available.

C#interface implementation method:

1. Define a printer interface.

2. Define printer classes A and B to implement this interface respectively.

3. Define a factory class in which you can choose to return the interface implemented by A or the interface implemented by B.

4. When using a printer in a program, you can use the factory class to call the printer without knowing what printer it is.

If the printer is changed, just modify the factory class. If the printer is invoked in a thousand places, there is no need to modify it one by one. Just change one thing. The interface acts as an isolation layer.

//define printer interface interfaceIprint { boolPrintData(stringdata); } //define printer class A, implement interface,(inheritance) classPrintA:Iprint { publicvirtualboolPrintData(stringdata) { //specific business logic omitted} } Define printer class B, implement interfaces,(inheritance) classPrintB:Iprint { publicvirtualboolPrintData(stringdata) { //specific business logic omitted} } //define factory class classPrintFactory{ publicIprintCreatePrint() { //returns an interface implemented by printer class A, or B, such as returnnewPrintA(); } } //Through the factory class, call the printer privatevoidbutton1_Click(objectsender,EventArgse) {PrintFactoryFactory =newPrintFactory(); IprintmyPrint=myFactory.CreatePrint(); myPrint.PrintData("This is very convenient"); } At this point, the study of "how to apply C#interface programming" is over, hoping to solve everyone's doubts. Theory and practice can better match to help everyone learn, go and try it! If you want to continue learning more relevant knowledge, please continue to pay attention to the website, Xiaobian will continue to strive to bring more practical articles for everyone!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.