Docker常用命令

帮助命令

docker version # 查看当前docker的本本信息
docker info    # 显示docker的系统信息 包括docker的镜像信息和容器信息
docker 命令 --help #查看命令的用法

官方文档地址:https://docs.docker.com/reference/

image-20200910164019644

镜像命令

查看镜像

#查看镜像
# docker images  #查看系统本地所有的镜像
[root@localhost ~]# docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
hello-world         latest              bf756fb1ae65        8 months ago        13.3kB
#解释
REPOSITORY  镜像的仓库源
TAG         镜像标签
IMAGE ID    镜像id
CREATED     镜像的创建时间
SIZE        镜像的大小

搜索镜像

#查找镜像
# docker search  镜像名 [-f]

[root@localhost ~]# docker search mysql8
NAME                                            DESCRIPTION                           STARS               OFFICIAL            AUTOMATED
justusqiao/mysql8                               mysql8.0.13-1debian9                  1                                       
cnbbx/mysql8                                    来自官方镜像,自行配置                           1                                       
abkrim/mysql8_legacy_password                                                         1                                       
codesmithtech/mysql8                            Simple MySQL 8 container              1                                       [OK]
haakco/mysql80                                                                        0                                       
lab08second/mysql8_native_auth                                                        0                                       
msimmons719/mysql8.0.19                                                               0                                       
hq9000/mysql8_native                                                                  0                                       
nu11secur1ty/mysql8.0-php7.2-apache2.4-docker   mysql8.0-php7-apache2.4-docker  
#解释
NAME  你所在的仓库对应包的名字
DESCRIPTION  包的描述
STARS      包的星级 下载次数越多的数字越大

拉取镜像

#拉取镜像
# docker pull 镜像名[:tag] 默认不加就是拉取最新的版本
[root@localhost ~]# docker pull justusqiao/mysql8
^[[CUsing default tag: latest
latest: Pulling from justusqiao/mysql8
f17d81b4b692: Pull complete  #分层下载 docker image的核心 联合文件系统
c691115e6ae9: Pull complete 
41544cb19235: Pull complete 
254d04f5f66d: Pull complete 
4fe240edfdc9: Pull complete 
0cd4fcc94b67: Pull complete 
8df36ec4b34a: Pull complete 
720bf9851f6a: Pull complete 
e933e0a4fddf: Pull complete 
9ffdbf5f677f: Pull complete 
a403e1df0389: Pull complete 
4669c5f285a6: Pull complete 
c8a82bb770b9: Pull complete 
Digest: sha256:9ce135e84abe283579040f3ba2dc2cfb7dd97f41047c6c0cef8605b416e6d8d3 #签名
Status: Downloaded newer image for justusqiao/mysql8:latest
docker.io/justusqiao/mysql8:latest  #真实的地址 

image-20200910170904244

删除镜像

#删除镜像
# docker rmi [-f] 镜像(REPOSITORY | IMAGE ID)

image-20200910171838700

#一次删除多个镜像
docker rmi [-f] 镜像id(REPOSITORY | IMAGE ID)镜像id2 ....

#删除所有的镜像
docker rmi -f $(docker images -aq)

查看镜像的详细信息

#docker inspect 镜像名 | 镜像id
[root@localhost ~]# docker images 
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
centos              latest              0d120b6ccaa8        4 weeks ago         215MB
[root@localhost ~]# docker inspect 0d120b6ccaa8
[
    {
        "Id": "sha256:0d120b6ccaa8c5e149176798b3501d4dd1885f961922497cd0abef155c869566",
        "RepoTags": [
            "centos:latest"
        ],
        "RepoDigests": [
            "centos@sha256:76d24f3ba3317fa945743bb3746fbaf3a0b752f10b10376960de01da70685fbd"
        ],
        "Parent": "",
        "Comment": "",
        "Created": "2020-08-10T18:19:49.837885498Z",
        "Container": "3b04ecd9fb2d3f921f12d858edf5f3a6aa7c36c8e1e6f74bd32555fd4d7f7da2",
        "ContainerConfig": {
            "Hostname": "3b04ecd9fb2d",
            "Domainname": "",
            "User": "",
            "AttachStdin": false,
            "AttachStdout": false,
            "AttachStderr": false,
            "Tty": false,
            "OpenStdin": false,
            "StdinOnce": false,
            "Env": [
                "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
            ],
            "Cmd": [
                "/bin/sh",
                "-c",
                "#(nop) ",
                "CMD [\"/bin/bash\"]"
            ],
            "ArgsEscaped": true,
            "Image": "sha256:69587a438b2c9b803db8ed4f6e6b5abce25a6b8ec2583a394807cf82bfd23693",
            "Volumes": null,
            "WorkingDir": "",
            "Entrypoint": null,
            "OnBuild": null,
            "Labels": {
                "org.label-schema.build-date": "20200809",
                "org.label-schema.license": "GPLv2",
                "org.label-schema.name": "CentOS Base Image",
                "org.label-schema.schema-version": "1.0",
                "org.label-schema.vendor": "CentOS"
            }
        },
        "DockerVersion": "18.09.7",
        "Author": "",
        "Config": {
            "Hostname": "",
            "Domainname": "",
            "User": "",
            "AttachStdin": false,
            "AttachStdout": false,
            "AttachStderr": false,
            "Tty": false,
            "OpenStdin": false,
            "StdinOnce": false,
            "Env": [
                "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
            ],
            "Cmd": [
                "/bin/bash"
            ],
            "ArgsEscaped": true,
            "Image": "sha256:69587a438b2c9b803db8ed4f6e6b5abce25a6b8ec2583a394807cf82bfd23693",
            "Volumes": null,
            "WorkingDir": "",
            "Entrypoint": null,
            "OnBuild": null,
            "Labels": {
                "org.label-schema.build-date": "20200809",
                "org.label-schema.license": "GPLv2",
                "org.label-schema.name": "CentOS Base Image",
                "org.label-schema.schema-version": "1.0",
                "org.label-schema.vendor": "CentOS"
            }
        },
        "Architecture": "amd64",
        "Os": "linux",
        "Size": 215102299,
        "VirtualSize": 215102299,
        "GraphDriver": {
            "Data": {
                "MergedDir": "/var/lib/docker/overlay2/06a5adfbdcd081fcb4e5bfce873b72ba410e82204ec3bcb213da193095000a16/merged",
                "UpperDir": "/var/lib/docker/overlay2/06a5adfbdcd081fcb4e5bfce873b72ba410e82204ec3bcb213da193095000a16/diff",
                "WorkDir": "/var/lib/docker/overlay2/06a5adfbdcd081fcb4e5bfce873b72ba410e82204ec3bcb213da193095000a16/work"
            },
            "Name": "overlay2"
        },
        "RootFS": {
            "Type": "layers",
            "Layers": [
                "sha256:291f6e44771a7b4399b0c6fb40ab4fe0331ddf76eda11080f052b003d96c7726"
            ]
        },
        "Metadata": {
            "LastTagTime": "0001-01-01T00:00:00Z"
        }
    }
]

容器命令

容器新建与启动

#docker run [可选参数] images
	--nam='Name'   #启动容器的名字 Nginx1 Nginx2 以便于区分容器
	-d 						# 后台方式运行
	-it						#使用交互式运行 进入容器可以查看内容
	-P            #指定容器端口  80:80
			-p  ip:主机(即宿主机)端口:容器端口
      -p  主机端口:容器端口      #这种方式常用
      -p  容器端口
      容器端口
	-p            #随机指定端口
	

接下来我们实战练习下:

启动容器

#启动一个容器
[root@localhost ~]# docker run -it --name=centos01 centos:latest 
[root@e133dc9cf70c /]# ls
bin  dev  etc  home  lib  lib64  lost+found  media  mnt  opt  proc  root  run  sbin  srv  sys  tmp  usr  var
[root@e133dc9cf70c /]# 

查看当前运行的容器docker ps

image-20200911112114523

退出容器

#exit退出容器 如果启动容器是没有使用-d后台运行的话我们敲exit的时候退出容器同时会停止容器

image-20200911113748243

#我们也有办法使得以上启动的容器退出容器不停止的
Ctrl + p + q  # 容器不停止退出

image-20200911114536542

启动、停止、重启容器

#停止容器
[root@localhost ~]# docker stop centos03
#启动容器
[root@localhost ~]# docker start centos03
#重启容器
[root@localhost ~]# docker restart centos02

image-20200911115556490

删除容器

#docker删除单个容器
docker rm 容器id|容器名  #若容器处于运行状态 使用-f 强制删除
#删除多个容器
docker rm 容器id|容器名  容器id|容器名  .....#若容器处于运行状态 使用-f 强制删除
dcoker rm -f $(docker ps -qa) #删除所有的容器

其他操作命令

进入当前正在运行的容器

#背景:通常我们都是后台运行的一些容器 现在我们妖精到容器去修改写配置

#1. docker exec -it 容器id| 容器名  运行shell(一般常用/bin/bash)
[root@localhost ~]# docker exec -it centos02 /bin/bash
[root@1bd831ce019b /]# ls
bin  dev  etc  home  lib  lib64  lost+found  media  mnt  opt  proc  root  run  sbin  srv  sys  tmp  usr  var
[root@1bd831ce019b /]# 


#2. docker  attach  容器id|容器名

[root@localhost ~]# docker attach centos02
[root@1bd831ce019b /]# ls 
bin  dev  etc  home  lib  lib64  lost+found  media  mnt  opt  proc  root  run  sbin  srv  sys  tmp  usr  var


#二者的区别
docker exec -it 容器id|容器名 运行的shell   #进入容器后开启一个新的终端在新的终端里面操作 (常用)

docker attach     #会在原来的终端操作

检查容器的详细信息

#docker inspect 容器id|容器名

[root@localhost ~]# docker inspect centos02
[
    {
        "Id": "1bd831ce019bc129b9866403c92f9d48ba4c29e03321ad0d3319069b71a3900a",   #容器id
        "Created": "2020-09-09T22:40:18.722749204Z",
        "Path": "/bin/bash",																												#容器运行的shell环境
        "Args": [],
        "State": {											
            "Status": "exited",														#容器的运行状态(刚 attach是用exit 退出 说以容器关闭)
            "Running": false,
            "Paused": false,
            "Restarting": false,
            "OOMKilled": false,
            "Dead": false,
            "Pid": 0,
            "ExitCode": 127,
            "Error": "",
            "StartedAt": "2020-09-09T22:55:42.556344274Z",
            "FinishedAt": "2020-09-10T01:01:47.217879601Z"
        },
        "Image": "sha256:0d120b6ccaa8c5e149176798b3501d4dd1885f961922497cd0abef155c869566",
        "ResolvConfPath": "/var/lib/docker/containers/1bd831ce019bc129b9866403c92f9d48ba4c29e03321ad0d3319069b71a3900a/resolv.conf",
        "HostnamePath": "/var/lib/docker/containers/1bd831ce019bc129b9866403c92f9d48ba4c29e03321ad0d3319069b71a3900a/hostname",
        "HostsPath": "/var/lib/docker/containers/1bd831ce019bc129b9866403c92f9d48ba4c29e03321ad0d3319069b71a3900a/hosts",
        "LogPath": "/var/lib/docker/containers/1bd831ce019bc129b9866403c92f9d48ba4c29e03321ad0d3319069b71a3900a/1bd831ce019bc129b9866403c92f9d48ba4c29e03321ad0d3319069b71a3900a-json.log",
        "Name": "/centos02",
        "RestartCount": 0,
        "Driver": "overlay2",
        "Platform": "linux",
        "MountLabel": "",
        "ProcessLabel": "",
        "AppArmorProfile": "",
        "ExecIDs": null,
        "HostConfig": {
            "Binds": null,
            "ContainerIDFile": "",
            "LogConfig": {
                "Type": "json-file",
                "Config": {}
            },
            "NetworkMode": "default",
            "PortBindings": {},
            "RestartPolicy": {
                "Name": "no",
                "MaximumRetryCount": 0
            },
            "AutoRemove": false,
            "VolumeDriver": "",
            "VolumesFrom": null,
            "CapAdd": null,
            "CapDrop": null,
            "Capabilities": null,
            "Dns": [],
            "DnsOptions": [],
            "DnsSearch": [],
            "ExtraHosts": null,
            "GroupAdd": null,
            "IpcMode": "private",
            "Cgroup": "",
            "Links": null,
            "OomScoreAdj": 0,
            "PidMode": "",
            "Privileged": false,
            "PublishAllPorts": false,
            "ReadonlyRootfs": false,
            "SecurityOpt": null,
            "UTSMode": "",
            "UsernsMode": "",
            "ShmSize": 67108864,
            "Runtime": "runc",
            "ConsoleSize": [
                0,
                0
            ],
            "Isolation": "",
            "CpuShares": 0,
            "Memory": 0,
            "NanoCpus": 0,
            "CgroupParent": "",
            "BlkioWeight": 0,
            "BlkioWeightDevice": [],
            "BlkioDeviceReadBps": null,
            "BlkioDeviceWriteBps": null,
            "BlkioDeviceReadIOps": null,
            "BlkioDeviceWriteIOps": null,
            "CpuPeriod": 0,
            "CpuQuota": 0,
            "CpuRealtimePeriod": 0,
            "CpuRealtimeRuntime": 0,
            "CpusetCpus": "",
            "CpusetMems": "",
            "Devices": [],
            "DeviceCgroupRules": null,
            "DeviceRequests": null,
            "KernelMemory": 0,
            "KernelMemoryTCP": 0,
            "MemoryReservation": 0,
            "MemorySwap": 0,
            "MemorySwappiness": null,
            "OomKillDisable": false,
            "PidsLimit": null,
            "Ulimits": null,
            "CpuCount": 0,
            "CpuPercent": 0,
            "IOMaximumIOps": 0,
            "IOMaximumBandwidth": 0,
            "MaskedPaths": [
                "/proc/asound",
                "/proc/acpi",
                "/proc/kcore",
                "/proc/keys",
                "/proc/latency_stats",
                "/proc/timer_list",
                "/proc/timer_stats",
                "/proc/sched_debug",
                "/proc/scsi",
                "/sys/firmware"
            ],
            "ReadonlyPaths": [
                "/proc/bus",
                "/proc/fs",
                "/proc/irq",
                "/proc/sys",
                "/proc/sysrq-trigger"
            ]
        },
        "GraphDriver": {
            "Data": {
                "LowerDir": "/var/lib/docker/overlay2/8927cd2f4a52c0388d3ff8f1a6e52a0c12648f79687de3525628ee02147d7648-init/diff:/var/lib/docker/overlay2/06a5adfbdcd081fcb4e5bfce873b72ba410e82204ec3bcb213da193095000a16/diff",
                "MergedDir": "/var/lib/docker/overlay2/8927cd2f4a52c0388d3ff8f1a6e52a0c12648f79687de3525628ee02147d7648/merged",
                "UpperDir": "/var/lib/docker/overlay2/8927cd2f4a52c0388d3ff8f1a6e52a0c12648f79687de3525628ee02147d7648/diff",
                "WorkDir": "/var/lib/docker/overlay2/8927cd2f4a52c0388d3ff8f1a6e52a0c12648f79687de3525628ee02147d7648/work"
            },
            "Name": "overlay2"
        },
        "Mounts": [],
        "Config": {
            "Hostname": "1bd831ce019b",
            "Domainname": "",
            "User": "",
            "AttachStdin": false,
            "AttachStdout": false,
            "AttachStderr": false,
            "Tty": true,
            "OpenStdin": true,
            "StdinOnce": false,
            "Env": [
                "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
            ],
            "Cmd": [
                "/bin/bash"
            ],
            "Image": "centos",
            "Volumes": null,
            "WorkingDir": "",
            "Entrypoint": null,
            "OnBuild": null,
            "Labels": {
                "org.label-schema.build-date": "20200809",
                "org.label-schema.license": "GPLv2",
                "org.label-schema.name": "CentOS Base Image",
                "org.label-schema.schema-version": "1.0",
                "org.label-schema.vendor": "CentOS"
            }
        },
        "NetworkSettings": {
            "Bridge": "",
            "SandboxID": "dcefb8f25251dcdd50cb2c3c57c2cf5d3641c73063f93c2b0e285c06ba2769f3",
            "HairpinMode": false,
            "LinkLocalIPv6Address": "",
            "LinkLocalIPv6PrefixLen": 0,
            "Ports": {},
            "SandboxKey": "/var/run/docker/netns/dcefb8f25251",
            "SecondaryIPAddresses": null,
            "SecondaryIPv6Addresses": null,
            "EndpointID": "",
            "Gateway": "",
            "GlobalIPv6Address": "",
            "GlobalIPv6PrefixLen": 0,
            "IPAddress": "",
            "IPPrefixLen": 0,
            "IPv6Gateway": "",
            "MacAddress": "",
            "Networks": {
                "bridge": {
                    "IPAMConfig": null,
                    "Links": null,
                    "Aliases": null,
                    "NetworkID": "27e69a0c595a673ff9c10e8b6e33de12f27f84d96cffd6eef86e91903b912f8e",
                    "EndpointID": "",
                    "Gateway": "",
                    "IPAddress": "",
                    "IPPrefixLen": 0,
                    "IPv6Gateway": "",
                    "GlobalIPv6Address": "",
                    "GlobalIPv6PrefixLen": 0,
                    "MacAddress": "",
                    "DriverOpts": null
                }
            }
        }
    }
]

后台启用

#docker run -d 镜像名

注意:docker 容器使用后台运行,就必须要有一个前台进程,docker发现没有应用,就会自动停止

查看日志

docker logs [--tail -t -f ] 容器名|容器id  # --tail 是linux的tail命令 -t 是带时间戳 -f 新增有日志会持续输出
root@localhost ~]# docker logs  centos02
[root@1bd831ce019b /]# exit
[root@1bd831ce019b /]# ls 
bin  dev  etc  home  lib  lib64  lost+found  media  mnt  opt  proc  root  run  sbin  srv  sys  tmp  usr  var
[root@1bd831ce019b /]# ps -ef 
UID         PID   PPID  C STIME TTY          TIME CMD
root          1      0  0 Sep09 pts/0    00:00:00 /bin/bash
root         29      1  0 00:54 pts/0    00:00:00 ps -ef
[root@1bd831ce019b /]# who
[root@1bd831ce019b /]# docker inspect centos02
bash: docker: command not found
[root@1bd831ce019b /]# exit
exit
[root@localhost ~]# 

查看容器中的进程信息

# docker top 容器名|容器id
[root@localhost ~]# docker top centos02
UID                 PID                 PPID                C                   STIME               TTY                 TIME                CMD
root                15327               15310               0                   09:12               pts/0               00:00:00            /bin/bash
[root@localhost ~]# 

容器与宿主机文件互拷贝

#1. docker cp 容器id:容器内目标文件路径  目的主机路径
[root@localhost ~]# docker ps 
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES
1bd831ce019b        centos              "/bin/bash"         3 hours ago         Up 33 minutes                           centos02
[root@localhost ~]# docker exec -it centos02 /bin/bash
[root@1bd831ce019b /]# cd /home/
[root@1bd831ce019b home]# touch test.txt
[root@1bd831ce019b home]# exit
[root@localhost ~]# ls
anaconda-ks.cfg
[root@localhost ~]# docker cp centos02:/home/test.txt ./
[root@localhost ~]# ls
anaconda-ks.cfg  test.txt

#2. docker cp   主机文件路径  容器id:容器内目的文件路径
[root@localhost ~]# docker cp  ./test.txt centos02:/
[root@localhost ~]# docker exec -it centos02 /bin/bash
[root@1bd831ce019b /]# ls
bin  dev  etc  home  lib  lib64  lost+found  media  mnt  opt  proc  root  run  sbin  srv  sys  test.txt  tmp  usr  var


#文件拷贝不管容器是处于运行或者停止状态都是可以拷贝的

分享图片

 attach      Attach to a running container 	      # 当前shell下attach连接指定运行的镜像
  build       Build an image from a Dockerfile        # 通过Dockerfile定制镜像
  commit      Create a new image from a container changes  #提交当前容器为新的镜像
  cp          Copy files/folders between a container and the local filesystem #从容器中拷贝指定文件或目录到宿主机中
  create      Create a new container 		      # 创建一个新的容器,同run,但不启动容器
  diff        Inspect changes to files or directories on a container‘s filesystem #查看docker容器的变化
  events      Get real time events from the server    # 从docker服务获取容器实时事件
  exec        Run a command in a running container    # 在已存在的容器上运行命令
  export      Export a container filesystem as a tar archive # 导出容器的内容流作为一个tar归档文件[对应import]
  history     Show the history of an image         # 展示一个镜像形成历史
  images      List images                          # 列出系统当前的镜像
  import      Import the contents from a tarball to create a filesystem image # 从tar包中的内容创建一个新的文件系统镜像[对应export]
  info        Display system-wide information      # 显示系统相关信息
  inspect     Return low-level information on Docker objects # 查看容器详细信息
  kill        Kill one or more running containers  # 杀死指定的docker容器
  load        Load an image from a tar archive or STDIN # 从一个tar包加载一个镜像[对应save]
  login       Log in to a Docker registry	   # 注册或者登录一个docker源服务器
  logout      Log out from a Docker registry	   # 从当前Docker registry退出
  logs        Fetch the logs of a container        # 输出当前容器日志信息
  pause       Pause all processes within one or more containers 	 # 暂停容器
  port        List port mappings or a specific mapping for the container # 查看映射端口对应容器内部源端口
  ps          List containers			   # 列出容器列表
  pull        Pull an image or a repository from a registry # 从docker镜像源服务器拉取指定镜像或库镜像
  push        Push an image or a repository to a registry   # 推送指定镜像或者库镜像至docker源服务器
  rename      Rename a container		   # 给docker容器重新命名
  restart     Restart one or more containers	   # 重启运行的容器
  rm          Remove one or more containers	   # 移除一个或者多个容器
  rmi         Remove one or more images		   # 移除一个或者多个镜像[无容器使用该镜像时才可删除,否则需删除相关容器才可继续或 -f 强制删除]
  run         Run a command in a new container	   # 创建一个新的容器并运行一个命令
  save        Save one or more images to a tar archive (streamed to STDOUT by default) # 保存一个镜像为一个tar包[对应load]
  search      Search the Docker Hub for images     # 在docker hub中搜索镜像
  start       Start one or more stopped containers # 启动容器
  stats       Display a live stream of container(s) resource usage statistics # 实时显示容器资源使用统计
  stop        Stop one or more running containers  # 停止容器
  tag         Create a tag TARGET_IMAGE that refers to SOURCE_IMAGE # 给源中镜像打标签
  top         Display the running processes of a container   	  # 查看容器中运行的进程信息
  unpause     Unpause all processes within one or more containers # 取消暂停容器
  update      Update configuration of one or more containers	  # 更新一个或多个容器配置
  version     Show the Docker version information  # 查看docker版本号 
  wait        Block until one or more containers stop, then print their exit codes # 截取容器停止时的退出状态值

实战:docker部署Nginx

#1. 启动一个Nginx 容器
[root@localhost ~]# docker run -d -it --name=Nginx01 -p 80:80 nginx
Unable to find image 'nginx:latest' locally   #没有找到Nginx镜像所有到共有仓去pull
latest: Pulling from library/nginx
d121f8d1c412: Pull complete 
ebd81fc8c071: Pull complete 
655316c160af: Pull complete 
d15953c0e0f8: Pull complete 
2ee525c5c3cc: Pull complete 
Digest: sha256:9a1f8ed9e2273e8b3bbcd2e200024adac624c2e5c9b1d420988809f5c0c41a5e
Status: Downloaded newer image for nginx:latest
acddfa04bd0a603dc57a14f763d417f4327734233696d588cd3a2ed440971d00
[root@localhost ~]# docker ps 
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                NAMES
acddfa04bd0a        nginx               "/docker-entrypoint.…"   24 seconds ago      Up 23 seconds       0.0.0.0:80->80/tcp   Nginx01

#通过访问宿主机的80 端口得到

image-20200911154459512

推荐一个不错的Docker讲解视频链接:https://www.bilibili.com/video/BV1og4y1q7M4

Docker常用命令

命令的帮助文档地址: https://docs.docker.com/engine/reference/commandline/docker/

管理镜像常用命令
在这里插入图片描述

创建容器

容器限制

基本命令

 
参考:https://blog.csdn.net/m0_49960764/article/details/124292208
posted @ 2022-06-02 09:01  小y  阅读(21)  评论(0编辑  收藏  举报