GO —— 操作 etcd 代码问题

问题：

cannot use cli (type *"go.etcd.io/etcd/clientv3".Client) as type *"github.com/coreos/etcd/clientv3".Client in argument to concurrency.NewSession

解决：更换为指定模块

	"github.com/coreos/etcd/clientv3"
    "github.com/coreos/etcd/clientv3/concurrency"