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  • grep、awk、sed的巩固练习

    作者:邓聪聪

    提取日志或文本中的关键内容

      1 Apr 23 09:34:05 localhost NetworkManager[1399]: <info>  (eno16777736): Activation: starting connection 'eno16777736' (ecefc7de-e893-4eee-88fd-bb9843616ec2)
      2 Apr 23 09:34:05 localhost NetworkManager[1399]: <info>  (eno16777736): device state change: disconnected -> prepare (reason 'none') [30 40 0]
      3 Apr 23 09:34:05 localhost NetworkManager[1399]: <info>  NetworkManager state is now CONNECTING
      4 Apr 23 09:34:05 localhost NetworkManager[1399]: <info>  (eno16777736): device state change: prepare -> config (reason 'none') [40 50 0]
      5 Apr 23 09:34:05 localhost NetworkManager[1399]: <info>  (eno16777736): device state change: config -> ip-config (reason 'none') [50 70 0]
      6 Apr 23 09:34:05 localhost NetworkManager[1399]: <info>  Activation (eno16777736) Beginning DHCPv4 transaction (timeout in 45 seconds)
      7 Apr 23 09:34:05 localhost NetworkManager[1399]: <info>  dhclient started with pid 11327
      8 Apr 23 09:34:05 localhost dhclient[11327]: DHCPDISCOVER on eno16777736 to 255.255.255.255 port 67 interval 7 (xid=0x398e2136)
      9 Apr 23 09:34:06 localhost dhclient[11327]: DHCPREQUEST on eno16777736 to 255.255.255.255 port 67 (xid=0x398e2136)
     10 Apr 23 09:34:06 localhost dhclient[11327]: DHCPOFFER from 10.0.0.254
     11 Apr 23 09:34:06 localhost dhclient[11327]: DHCPACK from 10.0.0.254 (xid=0x398e2136)
     12 Apr 23 09:34:06 localhost NetworkManager[1399]: <info>    address 10.0.0.132
     13 Apr 23 09:34:06 localhost NetworkManager[1399]: <info>    plen 24 (255.255.255.0)
     14 Apr 23 09:34:06 localhost NetworkManager[1399]: <info>    gateway 10.0.0.2
     15 Apr 23 09:34:06 localhost NetworkManager[1399]: <info>    server identifier 10.0.0.254
     16 Apr 23 09:34:06 localhost NetworkManager[1399]: <info>    lease time 1800
     17 Apr 23 09:34:06 localhost NetworkManager[1399]: <info>    nameserver '10.0.0.2'
     18 Apr 23 09:34:06 localhost NetworkManager[1399]: <info>    domain name 'localdomain'
     19 Apr 23 09:34:06 localhost NetworkManager[1399]: <info>  (eno16777736): DHCPv4 state changed unknown -> bound
     20 Apr 23 09:34:06 localhost NetworkManager[1399]: <info>  (eno16777736): device state change: ip-config -> ip-check (reason 'none') [70 80 0]
     21 Apr 23 09:34:06 localhost NetworkManager[1399]: <info>  (eno16777736): device state change: ip-check -> secondaries (reason 'none') [80 90 0]
     22 Apr 23 09:34:06 localhost NetworkManager[1399]: <info>  (eno16777736): device state change: secondaries -> activated (reason 'none') [90 100 0]
     23 Apr 23 09:34:06 localhost NetworkManager[1399]: <info>  NetworkManager state is now CONNECTED_LOCAL
     24 Apr 23 09:34:06 localhost NetworkManager[1399]: <info>  NetworkManager state is now CONNECTED_GLOBAL
     25 Apr 23 09:34:06 localhost NetworkManager[1399]: <info>  Policy set 'eno16777736' (eno16777736) as default for IPv4 routing and DNS.
     26 Apr 23 09:34:06 localhost NetworkManager[1399]: <info>  (eno16777736): Activation: successful, device activated.
     27 Apr 23 09:34:06 localhost nm-dispatcher: Dispatching action 'up' for eno16777736
     28 Apr 23 09:34:06 localhost network: Bringing up interface eno16777736:  Connection successfully activated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/1)
     29 Apr 23 09:34:06 localhost dhclient[11327]: bound to 10.0.0.132 -- renewal in 735 seconds.
     30 Apr 23 09:34:06 localhost network: [  OK  ]
     31 Apr 23 09:34:06 localhost systemd: Started LSB: Bring up/down networking.
     32 Apr 23 09:35:47 localhost dbus[1172]: avc:  received setenforce notice (enforcing=0)
     33 Apr 23 09:35:47 localhost dbus-daemon: dbus[1172]: avc:  received setenforce notice (enforcing=0)
     34 Apr 23 09:37:16 localhost systemd: Stopping firewalld - dynamic firewall daemon...
     35 Apr 23 09:37:16 localhost kernel: Ebtables v2.0 unregistered
     36 Apr 23 09:37:16 localhost systemd: Stopped firewalld - dynamic firewall daemon.
     37 Apr 23 09:37:56 localhost systemd: Started Session 2 of user root.
     38 Apr 23 09:37:56 localhost systemd-logind: New session 2 of user root.
     39 Apr 23 09:37:56 localhost systemd: Starting Session 2 of user root.
     40 Apr 23 09:46:21 localhost dhclient[11327]: DHCPREQUEST on eno16777736 to 10.0.0.254 port 67 (xid=0x398e2136)
     41 Apr 23 09:46:21 localhost dhclient[11327]: DHCPACK from 10.0.0.254 (xid=0x398e2136)
     42 Apr 23 09:46:21 localhost NetworkManager[1399]: <info>    address 10.0.0.132
     43 Apr 23 09:46:21 localhost NetworkManager[1399]: <info>    plen 24 (255.255.255.0)
     44 Apr 23 09:46:21 localhost NetworkManager[1399]: <info>    gateway 10.0.0.2
     45 Apr 23 09:46:21 localhost NetworkManager[1399]: <info>    server identifier 10.0.0.254
     46 Apr 23 09:46:21 localhost NetworkManager[1399]: <info>    lease time 1800
     47 Apr 23 09:46:21 localhost NetworkManager[1399]: <info>    nameserver '10.0.0.2'
     48 Apr 23 09:46:21 localhost NetworkManager[1399]: <info>    domain name 'localdomain'
     49 Apr 23 09:46:21 localhost NetworkManager[1399]: <info>  (eno16777736): DHCPv4 state changed bound -> bound
     50 Apr 23 09:46:21 localhost dbus[1172]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service'
     51 Apr 23 09:46:21 localhost systemd: Starting Network Manager Script Dispatcher Service...
     52 Apr 23 09:46:21 localhost dbus-daemon: dbus[1172]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service'
     53 Apr 23 09:46:21 localhost dhclient[11327]: bound to 10.0.0.132 -- renewal in 823 seconds.
     54 Apr 23 09:46:21 localhost dbus[1172]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
     55 Apr 23 09:46:21 localhost dbus-daemon: dbus[1172]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
     56 Apr 23 09:46:21 localhost systemd: Started Network Manager Script Dispatcher Service.
     57 Apr 23 09:46:21 localhost nm-dispatcher: Dispatching action 'dhcp4-change' for eno16777736
     58 Apr 23 09:46:57 localhost systemd: Starting Cleanup of Temporary Directories...
     59 Apr 23 09:46:57 localhost systemd: Started Cleanup of Temporary Directories.
     60 Apr 23 10:00:04 localhost dhclient[11327]: DHCPREQUEST on eno16777736 to 10.0.0.254 port 67 (xid=0x398e2136)
     61 Apr 23 10:00:04 localhost dhclient[11327]: DHCPACK from 10.0.0.254 (xid=0x398e2136)
     62 Apr 23 10:00:04 localhost NetworkManager[1399]: <info>    address 10.0.0.132
     63 Apr 23 10:00:04 localhost NetworkManager[1399]: <info>    plen 24 (255.255.255.0)
     64 Apr 23 10:00:04 localhost NetworkManager[1399]: <info>    gateway 10.0.0.2
     65 Apr 23 10:00:04 localhost NetworkManager[1399]: <info>    server identifier 10.0.0.254
     66 Apr 23 10:00:04 localhost NetworkManager[1399]: <info>    lease time 1800
     67 Apr 23 10:00:04 localhost NetworkManager[1399]: <info>    nameserver '10.0.0.2'
     68 Apr 23 10:00:04 localhost NetworkManager[1399]: <info>    domain name 'localdomain'
     69 Apr 23 10:00:04 localhost NetworkManager[1399]: <info>  (eno16777736): DHCPv4 state changed bound -> bound
     70 Apr 23 10:00:04 localhost dbus[1172]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service'
     71 Apr 23 10:00:04 localhost dbus-daemon: dbus[1172]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service'
     72 Apr 23 10:00:04 localhost systemd: Starting Network Manager Script Dispatcher Service...
     73 Apr 23 10:00:04 localhost dhclient[11327]: bound to 10.0.0.132 -- renewal in 707 seconds.
     74 Apr 23 10:00:04 localhost dbus[1172]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
     75 Apr 23 10:00:04 localhost dbus-daemon: dbus[1172]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
     76 Apr 23 10:00:04 localhost systemd: Started Network Manager Script Dispatcher Service.
     77 Apr 23 10:00:04 localhost nm-dispatcher: Dispatching action 'dhcp4-change' for eno16777736
     78 Apr 23 10:01:01 localhost systemd: Started Session 3 of user root.
     79 Apr 23 10:01:01 localhost systemd: Starting Session 3 of user root.
     80 Apr 23 10:11:51 localhost dhclient[11327]: DHCPREQUEST on eno16777736 to 10.0.0.254 port 67 (xid=0x398e2136)
     81 Apr 23 10:11:51 localhost dhclient[11327]: DHCPACK from 10.0.0.254 (xid=0x398e2136)
     82 Apr 23 10:11:51 localhost NetworkManager[1399]: <info>    address 10.0.0.132
     83 Apr 23 10:11:51 localhost NetworkManager[1399]: <info>    plen 24 (255.255.255.0)
     84 Apr 23 10:11:51 localhost NetworkManager[1399]: <info>    gateway 10.0.0.2
     85 Apr 23 10:11:51 localhost NetworkManager[1399]: <info>    server identifier 10.0.0.254
     86 Apr 23 10:11:51 localhost NetworkManager[1399]: <info>    lease time 1800
     87 Apr 23 10:11:51 localhost NetworkManager[1399]: <info>    nameserver '10.0.0.2'
     88 Apr 23 10:11:51 localhost NetworkManager[1399]: <info>    domain name 'localdomain'
     89 Apr 23 10:11:51 localhost NetworkManager[1399]: <info>  (eno16777736): DHCPv4 state changed bound -> bound
     90 Apr 23 10:11:51 localhost dbus[1172]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service'
     91 Apr 23 10:11:51 localhost systemd: Starting Network Manager Script Dispatcher Service...
     92 Apr 23 10:11:51 localhost dbus-daemon: dbus[1172]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service'
     93 Apr 23 10:11:51 localhost dhclient[11327]: bound to 10.0.0.132 -- renewal in 781 seconds.
     94 Apr 23 10:11:51 localhost dbus[1172]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
     95 Apr 23 10:11:51 localhost dbus-daemon: dbus[1172]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
     96 Apr 23 10:11:51 localhost systemd: Started Network Manager Script Dispatcher Service.
     97 Apr 23 10:11:51 localhost nm-dispatcher: Dispatching action 'dhcp4-change' for eno16777736
     98 Apr 23 10:24:52 localhost dhclient[11327]: DHCPREQUEST on eno16777736 to 10.0.0.254 port 67 (xid=0x398e2136)
     99 Apr 23 10:24:52 localhost dhclient[11327]: DHCPACK from 10.0.0.254 (xid=0x398e2136)
    100 Apr 23 10:24:52 localhost NetworkManager[1399]: <info>    address 10.0.0.132
    101 Apr 23 10:24:52 localhost NetworkManager[1399]: <info>    plen 24 (255.255.255.0)
    102 Apr 23 10:24:52 localhost NetworkManager[1399]: <info>    gateway 10.0.0.2
    103 Apr 23 10:24:52 localhost NetworkManager[1399]: <info>    server identifier 10.0.0.254
    104 Apr 23 10:24:52 localhost NetworkManager[1399]: <info>    lease time 1800
    105 Apr 23 10:24:52 localhost NetworkManager[1399]: <info>    nameserver '10.0.0.2'
    106 Apr 23 10:24:52 localhost NetworkManager[1399]: <info>    domain name 'localdomain'
    107 Apr 23 10:24:52 localhost NetworkManager[1399]: <info>  (eno16777736): DHCPv4 state changed bound -> bound
    108 Apr 23 10:24:52 localhost dbus[1172]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service'
    109 Apr 23 10:24:52 localhost systemd: Starting Network Manager Script Dispatcher Service...
    110 Apr 23 10:24:52 localhost dbus-daemon: dbus[1172]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service'
    111 Apr 23 10:24:52 localhost dhclient[11327]: bound to 10.0.0.132 -- renewal in 885 seconds.
    112 Apr 23 10:24:52 localhost dbus[1172]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
    113 Apr 23 10:24:52 localhost dbus-daemon: dbus[1172]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
    114 Apr 23 10:24:52 localhost systemd: Started Network Manager Script Dispatcher Service.
    115 Apr 23 10:24:52 localhost nm-dispatcher: Dispatching action 'dhcp4-change' for eno16777736
    116 Apr 23 10:39:38 localhost dhclient[11327]: DHCPREQUEST on eno16777736 to 10.0.0.254 port 67 (xid=0x398e2136)
    117 Apr 23 10:39:38 localhost dhclient[11327]: DHCPACK from 10.0.0.254 (xid=0x398e2136)
    118 Apr 23 10:39:38 localhost NetworkManager[1399]: <info>    address 10.0.0.132
    119 Apr 23 10:39:38 localhost NetworkManager[1399]: <info>    plen 24 (255.255.255.0)
    120 Apr 23 10:39:38 localhost NetworkManager[1399]: <info>    gateway 10.0.0.2
    121 Apr 23 10:39:38 localhost NetworkManager[1399]: <info>    server identifier 10.0.0.254
    122 Apr 23 10:39:38 localhost NetworkManager[1399]: <info>    lease time 1800
    123 Apr 23 10:39:38 localhost NetworkManager[1399]: <info>    nameserver '10.0.0.2'
    124 Apr 23 10:39:38 localhost NetworkManager[1399]: <info>    domain name 'localdomain'
    125 Apr 23 10:39:38 localhost NetworkManager[1399]: <info>  (eno16777736): DHCPv4 state changed bound -> bound
    126 Apr 23 10:39:38 localhost dbus[1172]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service'
    127 Apr 23 10:39:38 localhost systemd: Starting Network Manager Script Dispatcher Service...
    128 Apr 23 10:39:38 localhost dbus-daemon: dbus[1172]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service'
    129 Apr 23 10:39:38 localhost dhclient[11327]: bound to 10.0.0.132 -- renewal in 830 seconds.
    130 Apr 23 10:39:38 localhost dbus[1172]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
    131 Apr 23 10:39:38 localhost dbus-daemon: dbus[1172]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
    132 Apr 23 10:39:38 localhost systemd: Started Network Manager Script Dispatcher Service.
    133 Apr 23 10:39:38 localhost nm-dispatcher: Dispatching action 'dhcp4-change' for eno16777736
    134 Apr 23 10:53:28 localhost dhclient[11327]: DHCPREQUEST on eno16777736 to 10.0.0.254 port 67 (xid=0x398e2136)
    135 Apr 23 10:53:28 localhost dhclient[11327]: DHCPACK from 10.0.0.254 (xid=0x398e2136)
    136 Apr 23 10:53:28 localhost NetworkManager[1399]: <info>    address 10.0.0.132
    137 Apr 23 10:53:28 localhost NetworkManager[1399]: <info>    plen 24 (255.255.255.0)
    138 Apr 23 10:53:28 localhost NetworkManager[1399]: <info>    gateway 10.0.0.2
    139 Apr 23 10:53:28 localhost NetworkManager[1399]: <info>    server identifier 10.0.0.254
    140 Apr 23 10:53:28 localhost NetworkManager[1399]: <info>    lease time 1800
    141 Apr 23 10:53:28 localhost NetworkManager[1399]: <info>    nameserver '10.0.0.2'
    142 Apr 23 10:53:28 localhost NetworkManager[1399]: <info>    domain name 'localdomain'
    143 Apr 23 10:53:28 localhost NetworkManager[1399]: <info>  (eno16777736): DHCPv4 state changed bound -> bound
    144 Apr 23 10:53:28 localhost dbus[1172]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service'
    145 Apr 23 10:53:28 localhost dbus-daemon: dbus[1172]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service'
    146 Apr 23 10:53:28 localhost systemd: Starting Network Manager Script Dispatcher Service...
    147 Apr 23 10:53:28 localhost dhclient[11327]: bound to 10.0.0.132 -- renewal in 747 seconds.
    148 Apr 23 10:53:28 localhost dbus[1172]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
    149 Apr 23 10:53:28 localhost dbus-daemon: dbus[1172]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
    150 Apr 23 10:53:28 localhost systemd: Started Network Manager Script Dispatcher Service.
    151 Apr 23 10:53:28 localhost nm-dispatcher: Dispatching action 'dhcp4-change' for eno16777736
    152 Apr 23 11:01:01 localhost systemd: Started Session 4 of user root.
    153 Apr 23 11:01:01 localhost systemd: Starting Session 4 of user root.
    154 Apr 23 11:05:55 localhost dhclient[11327]: DHCPREQUEST on eno16777736 to 10.0.0.254 port 67 (xid=0x398e2136)
    155 Apr 23 11:05:55 localhost dhclient[11327]: DHCPACK from 10.0.0.254 (xid=0x398e2136)
    156 Apr 23 11:05:55 localhost NetworkManager[1399]: <info>    address 10.0.0.132
    157 Apr 23 11:05:55 localhost NetworkManager[1399]: <info>    plen 24 (255.255.255.0)
    158 Apr 23 11:05:55 localhost NetworkManager[1399]: <info>    gateway 10.0.0.2
    159 Apr 23 11:05:55 localhost NetworkManager[1399]: <info>    server identifier 10.0.0.254
    160 Apr 23 11:05:55 localhost NetworkManager[1399]: <info>    lease time 1800
    161 Apr 23 11:05:55 localhost NetworkManager[1399]: <info>    nameserver '10.0.0.2'
    162 Apr 23 11:05:55 localhost NetworkManager[1399]: <info>    domain name 'localdomain'
    163 Apr 23 11:05:55 localhost NetworkManager[1399]: <info>  (eno16777736): DHCPv4 state changed bound -> bound
    164 Apr 23 11:05:55 localhost dbus[1172]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service'
    165 Apr 23 11:05:55 localhost systemd: Starting Network Manager Script Dispatcher Service...
    166 Apr 23 11:05:55 localhost dbus-daemon: dbus[1172]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service'
    167 Apr 23 11:05:55 localhost dhclient[11327]: bound to 10.0.0.132 -- renewal in 869 seconds.
    168 Apr 23 11:05:55 localhost dbus[1172]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
    169 Apr 23 11:05:55 localhost dbus-daemon: dbus[1172]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
    170 Apr 23 11:05:55 localhost systemd: Started Network Manager Script Dispatcher Service.
    171 Apr 23 11:05:55 localhost nm-dispatcher: Dispatching action 'dhcp4-change' for eno16777736
    View Code

    grep  dbus 3.log |sed -r 's/^.*host (.*): .*$/1/g'|sed 's/dbus-daemon: //g'|awk  '{print $1}'

    过滤关键字                搜索   

    [root@admin ~]# ss -nat
    State       Recv-Q Send-Q                                                   Local Address:Port                                                     Peer Address:Port 
    LISTEN      0      128                                                                 :::10050                                                              :::*     
    LISTEN      0      128                                                                  *:10050                                                               *:*     
    LISTEN      0      25                                                                  :::514                                                                :::*     
    LISTEN      0      25                                                                   *:514                                                                 *:*     
    LISTEN      0      128                                                          127.0.0.1:199                                                                 *:*     
    LISTEN      0      50                                                                   *:3306                                                                *:*     
    LISTEN      0      20                                                                   *:587                                                                 *:*     
    LISTEN      0      20                                                                  :::587                                                                :::*     
    LISTEN      0      128                                                                 :::80                                                                 :::*     
    LISTEN      0      20                                                                   *:465                                                                 *:*     
    LISTEN      0      20                                                                  :::465                                                                :::*     
    LISTEN      0      128                                                                 :::22                                                                 :::*     
    LISTEN      0      128                                                                  *:22                                                                  *:*     
    LISTEN      0      20                                                                   *:25                                                                  *:*     
    LISTEN      0      20                                                                  :::25                                                                 :::*     
    ESTAB       0      52                                                        118.188.20.3:22                                                    221.122.103.135:62086 
    TIME-WAIT   0      0                                                          172.16.16.2:10050                                                     172.16.16.9:55678 
    TIME-WAIT   0      0                                                          172.16.16.2:10050                                                     172.16.16.9:55900 
    TIME-WAIT   0      0                                                          172.16.16.2:10050                                                     172.16.16.9:55904 
    TIME-WAIT   0      0                                                          172.16.16.2:10050                                                     172.16.16.9:55844 
    TIME-WAIT   0      0                                                          172.16.16.2:10050                                                     172.16.16.9:55872 
    TIME-WAIT   0      0                                                          172.16.16.2:10050                                                     172.16.16.9:55684 
    TIME-WAIT   0      0                                                          172.16.16.2:10050                                                     172.16.16.9:55700 
    View Code

    用sed取第一列:

    ss -ant|sed 's/[ ].*//'

    取出第一行的指定字符串,后项引用  磁盘使用率

    df |sed -nr '/^/dev/s/([^ ]+).*$/1/p'

    df |sed -nr '/^/dev/s/.* (.*)%.*/1/p'

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  • 原文地址:https://www.cnblogs.com/dengcongcong/p/10763228.html
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