还是先读一下源码吧

cmd/p2p/one.go

@@ -7,17 +7,32 @@ import (
 )
 
 var onePeerCommand = cli.Command{
-	Name:      "one",
-	Usage:     "only one peer test.",
-	Action:    one,
-	ArgsUsage: "<node>",
+	Name:       "one",
+	Usage:      "only one peer test.",
+	Action:     one,
+	Flags:      []cli.Flag {
+        bootnodesFlag,
+    },
 }
 
 func one(ctx *cli.Context) {
-	node := getNodeArg(ctx)
+    //node := getNodeArg(ctx)
 
-    fmt.Fprintf(os.Stdout, "Hello one peer kit, node is %v.\n", node.String())
+    //if err := ctx.Set("bootnodes", node.String()); err != nil {
+    //   fmt.Fprintf(os.Stderr, err.Error())
+    //   os.Exit(1)
+    //}
+
+    fmt.Fprintf(os.Stdout, "Hello one peer kit, node is %v.\n", ctx.String(bootnodesFlag.Name))
 
     disc := startV4(ctx)
     defer disc.Close()
+
+    //for {
+    //    fmt.Println(nodes.Node().String())
+    //
+    //    if !nodes.Next() {
+    //        nodes.Close()
+    //    }
+    //}
 }