接口的方法
实现附加到接口的方法的下一种方法是否正确？ （getKey、getData）
type reader interface {
getKey(ver uint) string
getData() string
}
type location struct {
reader
fileLocation string
err os.Error
}
func (self *location) getKey(ver uint) string {...}
func (self *location) getData() string {...}
func NewReader(fileLocation string) *location {
_location := new(location)
_location.fileLocation = fileLocation
return _location
}
Would be correct the next way to implement the methods attached to an interface? (getKey, getData)
type reader interface {
getKey(ver uint) string
getData() string
}
type location struct {
reader
fileLocation string
err os.Error
}
func (self *location) getKey(ver uint) string {...}
func (self *location) getData() string {...}
func NewReader(fileLocation string) *location {
_location := new(location)
_location.fileLocation = fileLocation
return _location
}
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评论（2）
在 Go 中，您不需要明确地说您正在实现一个接口 - 如果一个类型具有接口所需的一切，则可以通过该接口使用它。因此，您不需要在
type location struct中说出reader。请参阅此处：http://golang.org/doc/ effective_go.html#interfaces_and_types
In Go you don't need to explicitly say that you are implementing an interface—if a type has everything required by an interface, it can be used via that interface. So you don't need to say
readerinside thetype location struct.See here: http://golang.org/doc/effective_go.html#interfaces_and_types
你基本上已经做到了。一旦您为 location 的 getKey 和 getData 方法提供有效主体，*location 将实现读取器接口。无需再做任何事情。
You've basically done it already. As soon as you give location's getKey and getData methods valid bodies, *location will implement the reader interface. There's no need to do anything more.