Golang Indeterminate parameters

This is a creation in Article, where the information may have evolved or changed.

1, fixed type of indefinite parameters

Syntax format: ArgumentName ... Type

Ackage Main

Import "FMT"

Func F1 (args ... int) {

For _, V: = Range args {

Fmt. Println (v)

}

}

Func Main () {

F1 ()

F1 (1)

F1 (3, 5)

}

2, any type of indefinite parameters

interface{}: null interface type because any type implements an empty interface, so any type of object can be assigned to an empty interface.

Package Main

Import "FMT"

Func F1 (args ... interface{}) {

For _, V: = Range args {

Fmt. Println (v. (int))//The interface type assertion is used here

}

}

Func Main () {

F1 ()

F1 (1)

F1 (3, 5)

}

3, the transfer of indefinite parameters

Assuming that args is an indeterminate parameter, you can pass the argument to another function with an indeterminate argument

Func F1 (args ... int) {

F2 (args ...)

F2 (args[1:] ...)

}

Func F2 (args ... int) {

//

}

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