C # Functions

Parameter transfer:

Value Transfer: omitted

Reference parameter: ref

Output parameter: Out

The usage is similar. Ref needs to be used when declaring and passing parameters. Similarly, out is also used;

However, if the out parameter is used in the function without a value assignment, an error is returned;

 

Parameter array transfer; Params

Params int [] array: similar to the syntax, it can be called directly by passing in the array name;

You can also directly use Foo (,) to write the array to death and call it;

 

Method overload:

The key is that the signature cannot be the same. The signature does not include the type of the returned value and the name of the parameter (the type and corresponding parameter cannot be the same)

C # Functions