Files
the-way-to-go_ZH_CN/eBook/examples/chapter_10/method_on_time.go

27 lines
505 B
Go

// method_on_time.go
package main
import (
"fmt"
"time"
)
type myTime struct {
time.Time //anonymous field
}
func (t myTime) first3Chars() string {
return t.Time.String()[0:3]
}
func main() {
m := myTime{time.Now()}
fmt.Println("Full time now:", m.String()) //calling existing String method on anonymous Time field
fmt.Println("First 3 chars:", m.first3Chars()) //calling myTime.first3Chars
}
/* Output:
Full time now: Mon Oct 24 15:34:54 Romance Daylight Time 2011
First 3 chars: Mon
*/