func runEvents(dockerCli *client.DockerCli, opts *eventsOptions) error {
	eventFilterArgs := filters.NewArgs()

	// Consolidate all filter flags, and sanity check them early.
	// They'll get process in the daemon/server.
	for _, f := range opts.filter {
		var err error
		eventFilterArgs, err = filters.ParseFlag(f, eventFilterArgs)
		if err != nil {
			return err
		}
	}

	options := types.EventsOptions{
		Since:   opts.since,
		Until:   opts.until,
		Filters: eventFilterArgs,
	}

	responseBody, err := dockerCli.Client().Events(context.Background(), options)
	if err != nil {
		return err
	}
	defer responseBody.Close()

	return streamEvents(responseBody, dockerCli.Out())
}

// CmdNetworkLs lists all the networks managed by docker daemon
//
// Usage: docker network ls [OPTIONS]
func (cli *DockerCli) CmdNetworkLs(args ...string) error {
	cmd := Cli.Subcmd("network ls", nil, "Lists networks", true)
	quiet := cmd.Bool([]string{"q", "-quiet"}, false, "Only display numeric IDs")
	noTrunc := cmd.Bool([]string{"-no-trunc"}, false, "Do not truncate the output")

	flFilter := opts.NewListOpts(nil)
	cmd.Var(&flFilter, []string{"f", "-filter"}, "Filter output based on conditions provided")

	cmd.Require(flag.Exact, 0)
	err := cmd.ParseFlags(args, true)
	if err != nil {
		return err
	}

	// Consolidate all filter flags, and sanity check them early.
	// They'll get process after get response from server.
	netFilterArgs := filters.NewArgs()
	for _, f := range flFilter.GetAll() {
		if netFilterArgs, err = filters.ParseFlag(f, netFilterArgs); err != nil {
			return err
		}
	}

	options := types.NetworkListOptions{
		Filters: netFilterArgs,
	}

	networkResources, err := cli.client.NetworkList(options)
	if err != nil {
		return err
	}

	wr := tabwriter.NewWriter(cli.out, 20, 1, 3, ' ', 0)

	// unless quiet (-q) is specified, print field titles
	if !*quiet {
		fmt.Fprintln(wr, "NETWORK ID\tNAME\tDRIVER")
	}

	for _, networkResource := range networkResources {
		ID := networkResource.ID
		netName := networkResource.Name
		if !*noTrunc {
			ID = stringid.TruncateID(ID)
		}
		if *quiet {
			fmt.Fprintln(wr, ID)
			continue
		}
		driver := networkResource.Driver
		fmt.Fprintf(wr, "%s\t%s\t%s\t",
			ID,
			netName,
			driver)
		fmt.Fprint(wr, "\n")
	}
	wr.Flush()
	return nil
}

func runList(dockerCli *client.DockerCli, opts listOptions) error {
	client := dockerCli.Client()

	netFilterArgs := filters.NewArgs()
	for _, f := range opts.filter {
		var err error
		netFilterArgs, err = filters.ParseFlag(f, netFilterArgs)
		if err != nil {
			return err
		}
	}

	options := types.NetworkListOptions{
		Filters: netFilterArgs,
	}

	networkResources, err := client.NetworkList(context.Background(), options)
	if err != nil {
		return err
	}

	f := opts.format
	if len(f) == 0 {
		if len(dockerCli.ConfigFile().NetworksFormat) > 0 && !opts.quiet {
			f = dockerCli.ConfigFile().NetworksFormat
		} else {
			f = "table"
		}
	}

	sort.Sort(byNetworkName(networkResources))

	networksCtx := formatter.NetworkContext{
		Context: formatter.Context{
			Output: dockerCli.Out(),
			Format: f,
			Quiet:  opts.quiet,
			Trunc:  !opts.noTrunc,
		},
		Networks: networkResources,
	}

	networksCtx.Write()

	return nil
}

// CmdVolumeLs outputs a list of Docker volumes.
//
// Usage: docker volume ls [OPTIONS]
func (cli *DockerCli) CmdVolumeLs(args ...string) error {
	cmd := Cli.Subcmd("volume ls", nil, "List volumes", true)

	quiet := cmd.Bool([]string{"q", "-quiet"}, false, "Only display volume names")
	flFilter := opts.NewListOpts(nil)
	cmd.Var(&flFilter, []string{"f", "-filter"}, "Provide filter values (i.e. 'dangling=true')")

	cmd.Require(flag.Exact, 0)
	cmd.ParseFlags(args, true)

	volFilterArgs := filters.NewArgs()
	for _, f := range flFilter.GetAll() {
		var err error
		volFilterArgs, err = filters.ParseFlag(f, volFilterArgs)
		if err != nil {
			return err
		}
	}

	volumes, err := cli.client.VolumeList(volFilterArgs)
	if err != nil {
		return err
	}

	w := tabwriter.NewWriter(cli.out, 20, 1, 3, ' ', 0)
	if !*quiet {
		for _, warn := range volumes.Warnings {
			fmt.Fprintln(cli.err, warn)
		}
		fmt.Fprintf(w, "DRIVER \tVOLUME NAME")
		fmt.Fprintf(w, "\n")
	}

	for _, vol := range volumes.Volumes {
		if *quiet {
			fmt.Fprintln(w, vol.Name)
			continue
		}
		fmt.Fprintf(w, "%s\t%s\n", vol.Driver, vol.Name)
	}
	w.Flush()
	return nil
}

func buildContainerListOptions(opts *psOptions) (*types.ContainerListOptions, error) {

	options := &types.ContainerListOptions{
		All:    opts.all,
		Limit:  opts.last,
		Size:   opts.size,
		Filter: filters.NewArgs(),
	}

	if opts.nLatest && opts.last == -1 {
		options.Limit = 1
	}

	for _, f := range opts.filter {
		var err error
		options.Filter, err = filters.ParseFlag(f, options.Filter)
		if err != nil {
			return nil, err
		}
	}

	// Currently only used with Size, so we can determine if the user
	// put {{.Size}} in their format.
	pre := &preProcessor{opts: options}
	tmpl, err := templates.Parse(opts.format)

	if err != nil {
		return nil, err
	}

	// This shouldn't error out but swallowing the error makes it harder
	// to track down if preProcessor issues come up. Ref #24696
	if err := tmpl.Execute(ioutil.Discard, pre); err != nil {
		return nil, err
	}

	return options, nil
}

// CmdEvents prints a live stream of real time events from the server.
//
// Usage: docker events [OPTIONS]
func (cli *DockerCli) CmdEvents(args ...string) error {
	cmd := Cli.Subcmd("events", nil, Cli.DockerCommands["events"].Description, true)
	since := cmd.String([]string{"-since"}, "", "Show all events created since timestamp")
	until := cmd.String([]string{"-until"}, "", "Stream events until this timestamp")
	flFilter := opts.NewListOpts(nil)
	cmd.Var(&flFilter, []string{"f", "-filter"}, "Filter output based on conditions provided")
	cmd.Require(flag.Exact, 0)

	cmd.ParseFlags(args, true)

	eventFilterArgs := filters.NewArgs()

	// Consolidate all filter flags, and sanity check them early.
	// They'll get process in the daemon/server.
	for _, f := range flFilter.GetAll() {
		var err error
		eventFilterArgs, err = filters.ParseFlag(f, eventFilterArgs)
		if err != nil {
			return err
		}
	}

	options := types.EventsOptions{
		Since:   *since,
		Until:   *until,
		Filters: eventFilterArgs,
	}

	responseBody, err := cli.client.Events(options)
	if err != nil {
		return err
	}
	defer responseBody.Close()

	return streamEvents(responseBody, cli.out)
}

// CmdImages lists the images in a specified repository, or all top-level images if no repository is specified.
//
// Usage: docker images [OPTIONS] [REPOSITORY]
func (cli *DockerCli) CmdImages(args ...string) error {
	cmd := Cli.Subcmd("images", []string{"[REPOSITORY[:TAG]]"}, Cli.DockerCommands["images"].Description, true)
	quiet := cmd.Bool([]string{"q", "-quiet"}, false, "Only show numeric IDs")
	all := cmd.Bool([]string{"a", "-all"}, false, "Show all images (default hides intermediate images)")
	noTrunc := cmd.Bool([]string{"-no-trunc"}, false, "Don't truncate output")
	showDigests := cmd.Bool([]string{"-digests"}, false, "Show digests")

	flFilter := opts.NewListOpts(nil)
	cmd.Var(&flFilter, []string{"f", "-filter"}, "Filter output based on conditions provided")
	cmd.Require(flag.Max, 1)

	cmd.ParseFlags(args, true)

	// Consolidate all filter flags, and sanity check them early.
	// They'll get process in the daemon/server.
	imageFilterArgs := filters.NewArgs()
	for _, f := range flFilter.GetAll() {
		var err error
		imageFilterArgs, err = filters.ParseFlag(f, imageFilterArgs)
		if err != nil {
			return err
		}
	}

	var matchName string
	if cmd.NArg() == 1 {
		matchName = cmd.Arg(0)
	}

	options := types.ImageListOptions{
		MatchName: matchName,
		All:       *all,
		Filters:   imageFilterArgs,
	}

	images, err := cli.client.ImageList(options)
	if err != nil {
		return err
	}

	w := tabwriter.NewWriter(cli.out, 20, 1, 3, ' ', 0)
	if !*quiet {
		if *showDigests {
			fmt.Fprintln(w, "REPOSITORY\tTAG\tDIGEST\tIMAGE ID\tCREATED\tSIZE")
		} else {
			fmt.Fprintln(w, "REPOSITORY\tTAG\tIMAGE ID\tCREATED\tSIZE")
		}
	}

	for _, image := range images {
		ID := image.ID
		if !*noTrunc {
			ID = stringid.TruncateID(ID)
		}

		repoTags := image.RepoTags
		repoDigests := image.RepoDigests

		if len(repoTags) == 1 && repoTags[0] == "<none>:<none>" && len(repoDigests) == 1 && repoDigests[0] == "<none>@<none>" {
			// dangling image - clear out either repoTags or repoDigsts so we only show it once below
			repoDigests = []string{}
		}

		// combine the tags and digests lists
		tagsAndDigests := append(repoTags, repoDigests...)
		for _, repoAndRef := range tagsAndDigests {
			// default repo, tag, and digest to none - if there's a value, it'll be set below
			repo := "<none>"
			tag := "<none>"
			digest := "<none>"

			if !strings.HasPrefix(repoAndRef, "<none>") {
				ref, err := reference.ParseNamed(repoAndRef)
				if err != nil {
					return err
				}
				repo = ref.Name()

				switch x := ref.(type) {
				case reference.Digested:
					digest = x.Digest().String()
				case reference.Tagged:
					tag = x.Tag()
				}
			}

			if !*quiet {
				if *showDigests {
					fmt.Fprintf(w, "%s\t%s\t%s\t%s\t%s ago\t%s\n", repo, tag, digest, ID, units.HumanDuration(time.Now().UTC().Sub(time.Unix(int64(image.Created), 0))), units.HumanSize(float64(image.Size)))
				} else {
					fmt.Fprintf(w, "%s\t%s\t%s\t%s ago\t%s\n", repo, tag, ID, units.HumanDuration(time.Now().UTC().Sub(time.Unix(int64(image.Created), 0))), units.HumanSize(float64(image.Size)))
				}
			} else {
				fmt.Fprintln(w, ID)
			}
		}
	}
//.........这里部分代码省略.........

// Set sets the value of the opt by parsing the command line value
func (o *FilterOpt) Set(value string) error {
	var err error
	o.filter, err = filters.ParseFlag(value, o.filter)
	return err
}

// CmdPs outputs a list of Docker containers.
//
// Usage: docker ps [OPTIONS]
func (cli *DockerCli) CmdPs(args ...string) error {
	var (
		err error

		psFilterArgs = filters.NewArgs()

		cmd      = Cli.Subcmd("ps", nil, Cli.DockerCommands["ps"].Description, true)
		quiet    = cmd.Bool([]string{"q", "-quiet"}, false, "Only display numeric IDs")
		size     = cmd.Bool([]string{"s", "-size"}, false, "Display total file sizes")
		all      = cmd.Bool([]string{"a", "-all"}, false, "Show all containers (default shows just running)")
		noTrunc  = cmd.Bool([]string{"-no-trunc"}, false, "Don't truncate output")
		nLatest  = cmd.Bool([]string{"l", "-latest"}, false, "Show the latest created container (includes all states)")
		since    = cmd.String([]string{"#-since"}, "", "Show containers created since Id or Name (includes all states)")
		before   = cmd.String([]string{"#-before"}, "", "Only show containers created before Id or Name")
		last     = cmd.Int([]string{"n"}, -1, "Show n last created containers (includes all states)")
		format   = cmd.String([]string{"-format"}, "", "Pretty-print containers using a Go template")
		flFilter = opts.NewListOpts(nil)
	)
	cmd.Require(flag.Exact, 0)

	cmd.Var(&flFilter, []string{"f", "-filter"}, "Filter output based on conditions provided")

	cmd.ParseFlags(args, true)
	if *last == -1 && *nLatest {
		*last = 1
	}

	// Consolidate all filter flags, and sanity check them.
	// They'll get processed in the daemon/server.
	for _, f := range flFilter.GetAll() {
		if psFilterArgs, err = filters.ParseFlag(f, psFilterArgs); err != nil {
			return err
		}
	}

	options := types.ContainerListOptions{
		All:    *all,
		Limit:  *last,
		Since:  *since,
		Before: *before,
		Size:   *size,
		Filter: psFilterArgs,
	}

	containers, err := cli.client.ContainerList(options)
	if err != nil {
		return err
	}

	f := *format
	if len(f) == 0 {
		if len(cli.PsFormat()) > 0 && !*quiet {
			f = cli.PsFormat()
		} else {
			f = "table"
		}
	}

	psCtx := formatter.ContainerContext{
		Context: formatter.Context{
			Output: cli.out,
			Format: f,
			Quiet:  *quiet,
			Trunc:  !*noTrunc,
		},
		Size:       *size,
		Containers: containers,
	}

	psCtx.Write()

	return nil
}

// CmdImages lists the images in a specified repository, or all top-level images if no repository is specified.
//
// Usage: docker images [OPTIONS] [REPOSITORY]
func (cli *DockerCli) CmdImages(args ...string) error {
	cmd := Cli.Subcmd("images", []string{"[REPOSITORY[:TAG]]"}, Cli.DockerCommands["images"].Description, true)
	quiet := cmd.Bool([]string{"q", "-quiet"}, false, "Only show numeric IDs")
	all := cmd.Bool([]string{"a", "-all"}, false, "Show all images (default hides intermediate images)")
	noTrunc := cmd.Bool([]string{"-no-trunc"}, false, "Don't truncate output")
	showDigests := cmd.Bool([]string{"-digests"}, false, "Show digests")
	format := cmd.String([]string{"-format"}, "", "Pretty-print images using a Go template")

	flFilter := opts.NewListOpts(nil)
	cmd.Var(&flFilter, []string{"f", "-filter"}, "Filter output based on conditions provided")
	cmd.Require(flag.Max, 1)

	cmd.ParseFlags(args, true)

	// Consolidate all filter flags, and sanity check them early.
	// They'll get process in the daemon/server.
	imageFilterArgs := filters.NewArgs()
	for _, f := range flFilter.GetAll() {
		var err error
		imageFilterArgs, err = filters.ParseFlag(f, imageFilterArgs)
		if err != nil {
			return err
		}
	}

	var matchName string
	if cmd.NArg() == 1 {
		matchName = cmd.Arg(0)
	}

	options := types.ImageListOptions{
		MatchName: matchName,
		All:       *all,
		Filters:   imageFilterArgs,
	}

	images, err := cli.client.ImageList(options)
	if err != nil {
		return err
	}

	f := *format
	if len(f) == 0 {
		if len(cli.ImagesFormat()) > 0 && !*quiet {
			f = cli.ImagesFormat()
		} else {
			f = "table"
		}
	}

	imagesCtx := formatter.ImageContext{
		Context: formatter.Context{
			Output: cli.out,
			Format: f,
			Quiet:  *quiet,
			Trunc:  !*noTrunc,
		},
		Digest: *showDigests,
		Images: images,
	}

	imagesCtx.Write()

	return nil
}