从另一个文件调用函数

Question

Inside my directory /go/src/lodo I have two files, main.go and uniqueElement.

uniqueElement.go

package main

import "fmt"

func unique(a []int) {
    var value int

    for i:= range a {
        value = value ^ a[i]

    }
    fmt.Println(value)

}

main.go

package main

func main() {
    var a = []int{1, 4, 2, 1, 3, 4, 2}


    unique(a[0:])
}

I get an error

./main.go:7: undefined: unique

How can I correctly call unique from main?

Answer 1

You probably ran your code with go run main.go that only compiles and runs main.go try running go run main.go uniqueElement.go or building and running the binary generated