package main import ( "fmt" "os" ) func main() { f := createFile("/tmp/defer.txt") defer closeFile(f) writeFile(f) } func createFile(p string) *os.File { fmt.Println("Creating") f, err := os.Create(p) if err != nil { panic(err) } return f } func writeFile(f *os.File) { fmt.Println("Writing") fmt.Fprintln(f, "data") } func closeFile(f *os.File) { fmt.Println("Closing") f.Close() }
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예제로 살펴보는 Go : Defer
package main import ( "fmt" "os" ) func main() { f := createFile("/tmp/defer.txt") defer closeFile(f) writeFile(f) } func createFile(p string) *os.File { fmt.Println("Creating") f, err := os.Create(p) if err != nil { panic(err) } return f } func writeFile(f *os.File) { fmt.Println("Writing") fmt.Fprintln(f, "data") } func closeFile(f *os.File) { fmt.Println("Closing") f.Close() }Recent Posts
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