編碼package mainimport "fmt"type unimplementedGreeterServer struct {}func (unimplementedGreeterServer) SayHello() string {    return "hello"}func main() {    s := &unimplementedGreeterServer{}    ret := s.SayHello()    fmt.Println(ret)}結(jié)果hello問題：為什么 SayHello 方法沒有 unimplementedGreeterServer 點(diǎn)或 unimplementedGreeterServer 接收器可以運(yùn)行我認(rèn)為權(quán)利將是func (s unimplementedGreeterServer) SayHello2() string {    return "hello"}func (s *unimplementedGreeterServer) SayHello3() string {    return "hello"}不是func (unimplementedGreeterServer) SayHello() string {    return "hello"}