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Go言語で修飾名が重複したときのエラー

Posted at

エラー箇所

こんなエラーがあります.
"main redeclared in this block
previous declaration at..."

とりあえず,こんなエラーが出た場合の処置だけ.


[Running] go run "c:\Users\shell\PycharmProjects\go_programming\practice1.go"
# command-line-arguments
.\practice1.go:17:1: syntax error: non-declaration statement outside function body
.\practice1.go:21:6: main redeclared in this block
	previous declaration at .\practice1.go:9:6

[Done] exited with code=2 in 0.695 seconds

"main redeclared in this block previous declaration at" とあるように,goファイル中で"main"が重複して用いられているようです...

元のコード

main.go
package main

import (
	"fmt"
	"os/user"
	"time"
)

func main() {

	fmt.Println("Lets Go lang.", time.Now())
	fmt.Println(user.Current)
}


fmt.Println中のtime, user が重複されているという事でしょうか...? (正直,原因が完全にはわかりません)

とりあえずの解決策

main.go
package main

import (
	"fmt"
	USER "os/user"
	Time "time"
)

func main() {

	fmt.Println("Lets Go lang.", Time.Now())
	fmt.Println(USER.Current)
}

インポート中で,別名で定義すれば,とりあえずできました.
詳しいことご存じの方いらっしゃいましたら,教えていただけますと幸いです.

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