add SaveNotExistOrUpdate

huchanghua

2022-07-22 293b6d664512c30d2e6b2ce80487ba6fa16598c3

 clientFactory.go

@@ -18,6 +18,7 @@
         return nil
      }
      opt.nodes = n_getNetNode(opt.topic)
      logPrint("NewClient ip:", opt.ip, " topic:", opt.topic, " nodes:", opt.nodes)
      if !checkRemoteNetNode(opt.ip, &opt.nodes) {
         return nil
      }