C # this usage series (1) this points to the current instance,

C # this usage series (1) this points to the current instance,

This keyword indicates the current instance. We can use this to call the member methods, variables, attributes, and fields of the current instance.

Namespace Demo {public class Test {private string scope = "global variable"; public string getResult () {string scope = "local variable ";
// Here, this indicates the instance of Test, so this. scope points to a global variable, and scope accesses the local variable return this. scope + "-" + scope;} class Program {static void Main (string [] args) {try {Test = new test (); Console. writeLine (test. getResult ();} catch (Exception ex) {Console. writeLine (ex);} finally {Console. readLine ();}}}}

Next, share the keyword "this" as the original type Extension Method