1. Error
package main
import "fmt"
type Error struct {
errCode uint8
}
func (e *Error) Error() string {
switch e.errCode {
case 1:
return "file not found"
case 2:
return "time out"
default:
return "unknown error"
}
}
func main() {
err := new(Error)
err.errCode = 2
msg := err.Error()
fmt.Println(msg)
}
