~~~ package main import ( "fmt" "github.com/coreos/etcd/clientv3" "time" ) func main() { /* DialTimeout time.Duration `json:"dial-timeout"` Endpoints []string `json:"endpoints"` */ cli, err := clientv3.New(clientv3.Config{ Endpoints: []string{"localhost:2379", "localhost:22379", "localhost:32379"}, DialTimeout: 5 * time.Second, }) if err != nil { fmt.Println("connect failed, err:", err) return } fmt.Println("connect succ") defer cli.Close() } ~~~ 运行结果： ~~~ connect succ ~~~