GRE_MGRE综合实验
目录
1、R5为ISP,只能进行IP地址配置,其所有地址均配为公有IP地址。
IP配置
配置公网全网通
2、(1)R1和R5间使用PPP的PAP认证,R5为主认证方。
PAP认证
(2)R2与R5之间使用ppp的CHAP认证,R5为主认证方。
(3)R3与R5之间使用HDLC封装。
3、R1、R2、R3构建一个MGRE环境,R1为中心站点,R1、R4间为点到点的GRE。
构建隧道
配置NHRP
查看
配置GRE隧道
4、整个私有网络基于RIP全网可达。
RIP配置
开启R1Tunnel0/0/0口的伪广播功能
关闭水平分割
5、所有PC设置私有IP为源IP,可以访问R5环回,实现全网通。
easy IP配置
1、R5为ISP,只能进行IP地址配置,其所有地址均配为公有IP地址。
IP配置
R1:
<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei]sysname R1
[R1]int g0/0/0
[R1-GigabitEthernet0/0/0]ip add 192.168.1.1 24
Mar 29 2024 16:47:26-08:00 R1 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP
on the interface GigabitEthernet0/0/0 has entered the UP state.
[R1-GigabitEthernet0/0/0]q
[R1]int s4/0/0
[R1-Serial4/0/0]ip add 15.1.1.1 24
[R1-Serial4/0/0]q
[R1]dis ip int b
*down: administratively down
^down: standby
(l): loopback
(s): spoofing
The number of interface that is UP in Physical is 3
The number of interface that is DOWN in Physical is 3
The number of interface that is UP in Protocol is 3
The number of interface that is DOWN in Protocol is 3Interface IP Address/Mask Physical Protocol
GigabitEthernet0/0/0 192.168.1.1/24 up up
GigabitEthernet0/0/1 unassigned down down
GigabitEthernet0/0/2 unassigned down down
NULL0 unassigned up up(s)
Serial4/0/0 15.1.1.1/24 up up
Serial4/0/1 unassigned down down
[R1]
R2:
<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei]sysname R2
[R2]int g0/0/0
[R2-GigabitEthernet0/0/0]ip add 192.168.2.2 24
Mar 29 2024 16:49:49-08:00 R2 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP
on the interface GigabitEthernet0/0/0 has entered the UP state.
[R2-GigabitEthernet0/0/0]q
[R2]int s4/0/0
[R2-Serial4/0/0]ip add 25.1.1.2 24
[R2-Serial4/0/0]q
[R2]dis ip int b
*down: administratively down
^down: standby
(l): loopback
(s): spoofing
The number of interface that is UP in Physical is 3
The number of interface that is DOWN in Physical is 3
The number of interface that is UP in Protocol is 3
The number of interface that is DOWN in Protocol is 3Interface IP Address/Mask Physical Protocol
GigabitEthernet0/0/0 192.168.2.2/24 up up
GigabitEthernet0/0/1 unassigned down down
GigabitEthernet0/0/2 unassigned down down
NULL0 unassigned up up(s)
Serial4/0/0 25.1.1.2/24 up up
Serial4/0/1 unassigned down down
[R2]
R3:
<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei]sysname R3
[R3]int g0/0/0
[R3-GigabitEthernet0/0/0]ip add 192.168.3.3 24
[R3-GigabitEthernet0/0/0]
Mar 29 2024 16:52:19-08:00 R3 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP
on the interface GigabitEthernet0/0/0 has entered the UP state.
[R3-GigabitEthernet0/0/0]q
[R3]int s4/0/0
[R3-Serial4/0/0]ip add 35.1.1.3 24
[R3-Serial4/0/0]q
[R3]dis ip int b
*down: administratively down
^down: standby
(l): loopback
(s): spoofing
The number of interface that is UP in Physical is 3
The number of interface that is DOWN in Physical is 3
The number of interface that is UP in Protocol is 3
The number of interface that is DOWN in Protocol is 3Interface IP Address/Mask Physical Protocol
GigabitEthernet0/0/0 192.168.3.3/24 up up
GigabitEthernet0/0/1 unassigned down down
GigabitEthernet0/0/2 unassigned down down
NULL0 unassigned up up(s)
Serial4/0/0 35.1.1.3/24 up up
Serial4/0/1 unassigned down down
[R3]
R4:
<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei]sysname R4
[R4]int g0/0/0
[R4-GigabitEthernet0/0/0]ip add 45.1.1.4 24
Mar 29 2024 16:54:35-08:00 R4 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP
on the interface GigabitEthernet0/0/0 has entered the UP state.
[R4-GigabitEthernet0/0/0]q
[R4]int g0/0/1
[R4-GigabitEthernet0/0/1]ip add 192.168.4.4 24
Mar 29 2024 16:54:52-08:00 R4 %%01IFNET/4/LINK_STATE(l)[1]:The line protocol IP
on the interface GigabitEthernet0/0/1 has entered the UP state.
[R4-GigabitEthernet0/0/1]q
[R4]dis ip int b
*down: administratively down
^down: standby
(l): loopback
(s): spoofing
The number of interface that is UP in Physical is 3
The number of interface that is DOWN in Physical is 1
The number of interface that is UP in Protocol is 3
The number of interface that is DOWN in Protocol is 1Interface IP Address/Mask Physical Protocol
GigabitEthernet0/0/0 45.1.1.4/24 up up
GigabitEthernet0/0/1 192.168.4.4/24 up up
GigabitEthernet0/0/2 unassigned down down
NULL0 unassigned up up(s)
[R4]
ISP:
<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei]sysname ISP
[ISP]int s4/0/1
[ISP-Serial4/0/1]ip add 15.1.1.5 24
[ISP-Serial4/0/1]
Mar 29 2024 16:56:20-08:00 ISP %%01IFNET/4/LINK_STATE(l)[0]:The line protocol PP
P IPCP on the interface Serial4/0/1 has entered the UP state.
[ISP-Serial4/0/1]q
[ISP]int s3/0/1
[ISP-Serial3/0/1]ip add 25.1.1.5 24
[ISP-Serial3/0/1]
Mar 29 2024 16:56:43-08:00 ISP %%01IFNET/4/LINK_STATE(l)[1]:The line protocol PP
P IPCP on the interface Serial3/0/1 has entered the UP state.
[ISP-Serial3/0/1]q
[ISP]int s4/0/0
[ISP-Serial4/0/0]ip add 35.1.1.5 24
[ISP-Serial4/0/0]
Mar 29 2024 16:57:01-08:00 ISP %%01IFNET/4/LINK_STATE(l)[2]:The line protocol PP
P IPCP on the interface Serial4/0/0 has entered the UP state.
[ISP-Serial4/0/0]q
[ISP]int g0/0/0
[ISP-GigabitEthernet0/0/0]ip add 45.1.1.5 24
Mar 29 2024 16:57:47-08:00 ISP %%01IFNET/4/LINK_STATE(l)[3]:The line protocol IPon the interface GigabitEthernet0/0/0 has entered the UP state.
[ISP-GigabitEthernet0/0/0]q
[ISP]int LoopBack 0
[ISP-LoopBack0]ip add 5.5.5.5 24
[ISP-LoopBack0]q
[ISP]dis ip int b
*down: administratively down
^down: standby
(l): loopback
(s): spoofing
The number of interface that is UP in Physical is 6
The number of interface that is DOWN in Physical is 3
The number of interface that is UP in Protocol is 6
The number of interface that is DOWN in Protocol is 3Interface IP Address/Mask Physical Protocol
GigabitEthernet0/0/0 45.1.1.5/24 up up
GigabitEthernet0/0/1 unassigned down down
GigabitEthernet0/0/2 unassigned down down
LoopBack0 5.5.5.5/24 up up(s)
NULL0 unassigned up up(s)
Serial3/0/0 unassigned down down
Serial3/0/1 25.1.1.5/24 up up
Serial4/0/0 35.1.1.5/24 up up
Serial4/0/1 15.1.1.5/24 up up
[ISP]
PC1:
PC2:
PC3:
PC4:
配置公网全网通
R1:
[R1]ip route-static 0.0.0.0 0 15.1.1.5
R2:
[R2]ip route-static 0.0.0.0 0 25.1.1.5
R3:
[R3]ip route-static 0.0.0.0 0 35.1.1.5
R4:
[R4]ip route-static 0.0.0.0 0 45.1.1.5
2、(1)R1和R5间使用PPP的PAP认证,R5为主认证方。
PAP认证
ISP为主认证方,所以在ISP上配置账户:
R5:
[ISP]aaa
[ISP-aaa]local-user a1 password cipher a12345
Info: Add a new user.
[ISP-aaa]local-user a1 service-type ppp
[ISP-aaa]q
[ISP]int s4/0/1
[ISP-Serial4/0/1]ppp authentication-mode pap
R1:
[R1]int s4/0/0
[R1-Serial4/0/0]ppp pap local-user a1 password cipher a12345
验证:
[R1-Serial4/0/0]shutdown
Mar 29 2024 18:12:22-08:00 R1 %%01PPP/4/PHYSICALDOWN(l)[0]:On the interface Seri
al4/0/0, PPP link was closed because the status of the physical layer was Down. [R1-Serial4/0/0]
Mar 29 2024 18:12:22-08:00 R1 %%01IFNET/4/LINK_STATE(l)[1]:The line protocol PPPon the interface Serial4/0/0 has entered the DOWN state.
[R1-Serial4/0/0]
Mar 29 2024 18:12:22-08:00 R1 %%01IFNET/4/LINK_STATE(l)[2]:The line protocol PPPIPCP on the interface Serial4/0/0 has entered the DOWN state.
[R1-Serial4/0/0]
Mar 29 2024 18:12:22-08:00 R1 %%01IFPDT/4/IF_STATE(l)[3]:Interface Serial4/0/0 h
as turned into DOWN state.
[R1-Serial4/0/0]undo shutdown
[R1-Serial4/0/0]
Mar 29 2024 18:12:31-08:00 R1 %%01IFPDT/4/IF_STATE(l)[4]:Interface Serial4/0/0 h
as turned into UP state.
[R1-Serial4/0/0]
Mar 29 2024 18:12:34-08:00 R1 %%01IFNET/4/LINK_STATE(l)[5]:The line protocol PPPon the interface Serial4/0/0 has entered the UP state.
[R1-Serial4/0/0]
Mar 29 2024 18:12:34-08:00 R1 %%01IFNET/4/LINK_STATE(l)[6]:The line protocol PPPIPCP on the interface Serial4/0/0 has entered the UP state.
[R1-Serial4/0/0]
(2)R2与R5之间使用ppp的CHAP认证,R5为主认证方。
依然是R5为主,故在R5上配置账户:
R5:
[ISP]aaa
[ISP-aaa]local-user b1 password cipher b12345
Info: Add a new user.
[ISP-aaa]local-user b1 service-type ppp
[ISP-aaa]q
[ISP-Serial3/0/1]ppp authentication-mode chap
R2:
[R2]int s4/0/0
[R2-Serial4/0/0]ppp chap user b1
[R2-Serial4/0/0]ppp chap password cipher b12345
验证:
[R2-Serial4/0/0]shutdown
Mar 29 2024 18:17:41-08:00 R2 %%01PPP/4/PHYSICALDOWN(l)[0]:On the interface Seri
al4/0/0, PPP link was closed because the status of the physical layer was Down. [R2-Serial4/0/0]
Mar 29 2024 18:17:41-08:00 R2 %%01IFNET/4/LINK_STATE(l)[1]:The line protocol PPPon the interface Serial4/0/0 has entered the DOWN state.
[R2-Serial4/0/0]
Mar 29 2024 18:17:41-08:00 R2 %%01IFNET/4/LINK_STATE(l)[2]:The line protocol PPPIPCP on the interface Serial4/0/0 has entered the DOWN state.
[R2-Serial4/0/0]
Mar 29 2024 18:17:41-08:00 R2 %%01IFPDT/4/IF_STATE(l)[3]:Interface Serial4/0/0 h
as turned into DOWN state.
[R2-Serial4/0/0]undo shutdown
[R2-Serial4/0/0]
Mar 29 2024 18:17:50-08:00 R2 %%01IFPDT/4/IF_STATE(l)[4]:Interface Serial4/0/0 h
as turned into UP state.
[R2-Serial4/0/0]
Mar 29 2024 18:17:53-08:00 R2 %%01IFNET/4/LINK_STATE(l)[5]:The line protocol PPPon the interface Serial4/0/0 has entered the UP state.
[R2-Serial4/0/0]
Mar 29 2024 18:17:54-08:00 R2 %%01IFNET/4/LINK_STATE(l)[6]:The line protocol PPPIPCP on the interface Serial4/0/0 has entered the UP state.
[R2-Serial4/0/0]
(3)R3与R5之间使用HDLC封装。
R5:
[ISP]int s4/0/0
[ISP-Serial4/0/0]link-protocol hdlc
Warning: The encapsulation protocol of the link will be changed. Continue? [Y/N]
:y
Mar 29 2024 18:22:40-08:00 ISP %%01IFNET/4/CHANGE_ENCAP(l)[14]:The user performe
d the configuration that will change the encapsulation protocol of the link and
then selected Y.
[ISP-Serial4/0/0]
[ISP-Serial4/0/0]
Mar 29 2024 18:22:40-08:00 ISP %%01PPP/4/PHYSICALDOWN(l)[15]:On the interface Se
rial4/0/0, PPP link was closed because the status of the physical layer was Down
.
[ISP-Serial4/0/0]
Mar 29 2024 18:22:40-08:00 ISP %%01IFNET/4/LINK_STATE(l)[16]:The line protocol P
PP on the interface Serial4/0/0 has entered the DOWN state.
[ISP-Serial4/0/0]
Mar 29 2024 18:22:40-08:00 ISP %%01IFNET/4/LINK_STATE(l)[17]:The line protocol P
PP IPCP on the interface Serial4/0/0 has entered the DOWN state.
[ISP-Serial4/0/0]
Mar 29 2024 18:22:40-08:00 ISP %%01IFPDT/4/IF_STATE(l)[18]:Interface Serial4/0/0has turned into DOWN state.
[ISP-Serial4/0/0]
Mar 29 2024 18:22:41-08:00 ISP %%01IFPDT/4/IF_STATE(l)[19]:Interface Serial4/0/0has turned into UP state.
[ISP-Serial4/0/0]
Mar 29 2024 18:22:41-08:00 ISP %%01IFNET/4/LINK_STATE(l)[20]:The line protocol I
P on the interface Serial4/0/0 has entered the UP state.
[ISP-Serial4/0/0]
R3:
[R3]int s4/0/0
[R3-Serial4/0/0]link-protocol hdlc
Warning: The encapsulation protocol of the link will be changed. Continue? [Y/N]
:y
Mar 29 2024 18:23:02-08:00 R3 %%01IFNET/4/CHANGE_ENCAP(l)[0]:The user performed
the configuration that will change the encapsulation protocol of the link and th
en selected Y.
[R3-Serial4/0/0]
Mar 29 2024 18:23:02-08:00 R3 %%01PPP/4/PHYSICALDOWN(l)[1]:On the interface Seri
al4/0/0, PPP link was closed because the status of the physical layer was Down. [R3-Serial4/0/0]
Mar 29 2024 18:23:02-08:00 R3 %%01IFNET/4/LINK_STATE(l)[2]:The line protocol PPPon the interface Serial4/0/0 has entered the DOWN state.
[R3-Serial4/0/0]
Mar 29 2024 18:23:02-08:00 R3 %%01IFNET/4/LINK_STATE(l)[3]:The line protocol PPPIPCP on the interface Serial4/0/0 has entered the DOWN state.
[R3-Serial4/0/0]
Mar 29 2024 18:23:02-08:00 R3 %%01IFPDT/4/IF_STATE(l)[4]:Interface Serial4/0/0 h
as turned into DOWN state.
[R3-Serial4/0/0]
Mar 29 2024 18:23:03-08:00 R3 %%01IFPDT/4/IF_STATE(l)[5]:Interface Serial4/0/0 h
as turned into UP state.
[R3-Serial4/0/0]
Mar 29 2024 18:23:03-08:00 R3 %%01IFNET/4/LINK_STATE(l)[6]:The line protocol IP
on the interface Serial4/0/0 has entered the UP state.
[R3-Serial4/0/0]
验证:
3、R1、R2、R3构建一个MGRE环境,R1为中心站点,R1、R4间为点到点的GRE。
构建隧道
首先配置MGRE隧道:
R1:
[R1]int Tunnel 0/0/0
[R1-Tunnel0/0/0]ip add 10.1.2.1 24
[R1-Tunnel0/0/0]tunnel-protocol gre p2mp
[R1-Tunnel0/0/0]source 15.1.1.1
Mar 29 2024 18:33:05-08:00 R1 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP
on the interface Tunnel0/0/0 has entered the UP state.
[R1-Tunnel0/0/0]
R2:
[R2]int Tunnel 0/0/0
[R2-Tunnel0/0/0]ip add 10.1.2.2 24
[R2-Tunnel0/0/0]tunnel-protocol gre p2mp
[R2-Tunnel0/0/0]source s4/0/0
Mar 29 2024 18:35:02-08:00 R2 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP
on the interface Tunnel0/0/0 has entered the UP state.
R3:
[R3]int Tunnel 0/0/0
[R3-Tunnel0/0/0]ip add 10.1.2.3 24
[R3-Tunnel0/0/0]tunnel-protocol gre p2mp
[R3-Tunnel0/0/0]source s4/0/0
Mar 29 2024 18:36:12-08:00 R3 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP
on the interface Tunnel0/0/0 has entered the UP state.
[R3-Tunnel0/0/0]
配置NHRP
R1:
[R1-Tunnel0/0/0]nhrp network-id 100
R2:
[R2-Tunnel0/0/0]nhrp network-id 100
[R2-Tunnel0/0/0]nhrp entry 10.1.2.1 15.1.1.1 register
R3:
[R3-Tunnel0/0/0]nhrp network-id 100
[R3-Tunnel0/0/0]nhrp entry 10.1.2.1 15.1.1.1 register
查看
配置GRE隧道
R1:
[R1]int Tunnel 0/0/1
[R1-Tunnel0/0/1]ip add 10.1.1.1 24
[R1-Tunnel0/0/1]tunnel-protocol gre
[R1-Tunnel0/0/1]source 15.1.1.1
[R1-Tunnel0/0/1]destination 45.1.1.4
R4:
[R4]int Tunnel 0/0/1
[R4-Tunnel0/0/1]ip add 10.1.1.2 24
[R4-Tunnel0/0/1]tunnel-protocol gre
[R4-Tunnel0/0/1]source 45.1.1.4
[R4-Tunnel0/0/1]destination 15.1.1.1
R1:
R4:
4、整个私有网络基于RIP全网可达。
RIP配置
R1:
[R1]rip 1
[R1-rip-1]version 2
[R1-rip-1]undo summary
[R1-rip-1]network 192.168.1.0
[R1-rip-1]network 10.0.0.0
[R1-rip-1]
R2:
[R2]rip 1
[R2-rip-1]v 2
[R2-rip-1]undo summary
[R2-rip-1]network 192.168.2.0
[R2-rip-1]network 10.0.0.0
R3:
[R3]rip 1
[R3-rip-1]version 2
[R3-rip-1]undo summary
[R3-rip-1]network 192.168.3.0
[R3-rip-1]network 10.0.0.0
R4:
[R4]rip 1
[R4-rip-1]v 2
[R4-rip-1]undo summary
[R4-rip-1]network 192.168.4.0
[R4-rip-1]network 10.0.0.0
开启R1Tunnel0/0/0口的伪广播功能
[R1-Tunnel0/0/0]nhrp entry multicast dynamic
关闭水平分割
水平分割 --- 从哪个接口学到的路由信息将不再从这个接口发出去。
故使用rip的路由器不能发送其他主机的路由信息,要实现全网通,我们就得关闭该功能。
R1:
[R1-Tunnel0/0/0]undo rip split-horizon
R2:
[R2-Tunnel0/0/0]undo rip split-horizon
R3:
[R3-Tunnel0/0/0]undo rip split-horizon
至此,R2和R3就能学习到其他的路由信息。
R2 ping 一下R3后再查看 NHRP表(因为两台路由器间没有发包可能不会更新NHRP表):
R2:
R3:
5、所有PC设置私有IP为源IP,可以访问R5环回,实现全网通。
easy IP配置
R1:
[R1]acl 2000
[R1-acl-basic-2000]rule permit source 192.168.1.0 0.0.0.255
[R1-acl-basic-2000]q
[R1]int s4/0/0
[R1-Serial4/0/0]nat outbound 2000
检验:
R2:
[R2]acl 2000
[R2-acl-basic-2000]rule permit source 192.168.2.0 0.0.0.255
[R2-acl-basic-2000]q
[R2]int s4/0/0
[R2-Serial4/0/0]nat outbound 2000
检验:
R3:
[R3]acl 2000
[R3-acl-basic-2000]rule permit source 192.168.3.0 0.0.0.255
[R3-acl-basic-2000]q
[R3]int s4/0/0
[R3-Serial4/0/0]nat outbound 2000
检验:
R4:
[R4]acl 2000
[R4-acl-basic-2000]rule permit source 192.168.4.0 0.0.0.255
[R4-acl-basic-2000]q
[R4]int g0/0/0
[R4-GigabitEthernet0/0/0]nat outbound 2000
检验:
相关文章:
GRE_MGRE综合实验
目录 1、R5为ISP,只能进行IP地址配置,其所有地址均配为公有IP地址。 IP配置 配置公网全网通 2、(1)R1和R5间使用PPP的PAP认证,R5为主认证方。 PAP认证 (2)R2与R5之间使用ppp的CHAP认证&am…...
把组合损失中的权重设置为可学习参数
目前的需求是:有一个模型,准备使用组合损失,其中有2个或者多个损失函数。准备对其进行加权并线性叠加。但想让这些权重进行自我学习,更新迭代成最优加权组合。 目录 1、构建组合损失类 2、调用组合损失类 3、为其构建优化器 …...
用Bat启动jar程序
前情提要:在使用冰蝎、哥斯拉等一些列工具时(PS:一系列需要利用Java环境并打开的jar),我就在想能不能写一段代码点一下,就能打开程序而不用去输入命令 echo off echo 程序启动中... start javaw -noverif…...
网站维护页404源码
网站维护页404源码,布局简洁,上传即可使用。 网站维护页404源码...
jmeter链路压测
比如登录后返回token,业务打印上传的操作需要用到token 线程组中添加登录请求,并执行 1、添加登录并执行,查看结果 2、结果树中下拉选择正则表达式,将token参数和值复制粘贴到下方,将token值改为(.*?)࿰…...
香港服务器怎么看是CN2 GT线路还是CN2 GIA线路?
不知道有没有小伙伴们注意过,很多人在租用香港服务器的时候都习惯性选择 CN2 线路?仿佛香港服务器是否采用 CN2 线路成为个人企业选择香港服务器的一个标准。其实,香港服务器有CN2、优化直连(163)、BGP多线(包含了国际和国内线路),…...
CrossOver软件2024免费 最新版本详细介绍 CrossOver软件好用吗 Mac电脑玩Windows游戏
CrossOver是一款由CodeWeavers公司开发的软件,它可以在Mac和Linux等操作系统上运行Windows软件,而无需在计算机上安装Windows操作系统。这款软件的核心技术是Wine,它是一种在Linux和macOS等操作系统上运行Windows应用程序的开源软件。 Cross…...
harbor api v2.0
harbor api v2.0 v2.0 v2.0 “harbor api v2.0”与原来区别较大,此处harbor也做了https。另外,通过接口拿到的数据也是只能默认1页10个,所以脚本根据实际情况一页页的抓取数据 脚本主要用于统计repo、image,以及所有镜像的tag数&…...
Vue 表单数据双向绑定 v-mode
每一个Vue项目,每一个系统,肯定涉及到表单的双向数据绑定问题,这一部分是 vue 的重中之重,不是因为知识点复杂,而是因为只要参与 vue 项目的开发,那么就必不可少。 单项绑定 :数据变࿰…...
tab切换组件,可横向自适应滑动
示例图: 注:需要引入Jquery <!DOCTYPE html> <html><head><meta charset"utf-8"><title></title><style>.tabs-box {width: 100%;height: auto;}.tab-header-box {display: flex;overflow: hidden…...
设计模式---单例模式
目录 一、五种单例模式的实现方式 1.饿汉模式 2.饿汉枚举类型 3.懒汉式 4.双检锁懒汉式 5.内部类懒汉式 二、JDK 中单例的体现 一、五种单例模式的实现方式 1.饿汉模式 public class Singleton1 implements Serializable {private Singleton1() {if (INSTANCE ! null) {thro…...
HarmonyOS 应用开发之启动/停止本地PageAbility
启动本地PageAbility PageAbility相关的能力通过featureAbility提供,启动本地Ability通过featureAbility中的startAbility接口实现。 表1 featureAbility接口说明 接口名接口描述startAbility(parameter: StartAbilityParameter)启动Ability。startAbilityForRes…...
BaseDao封装增删改查
文章目录 什么是BaseDao操作代码增删改查询单个数据查询多个数据 总结 什么是BaseDao BaseDao是: 数据库里负责增加,删除,修改,查询 具体来说是一种接口代码,公共方法的接口类。 在dao层新建basedao,其他dao层接口继承basedao 相…...
Redis入门到实战-第十三弹
Redis入门到实战 Redis中JSON数据类型常见操作官网地址Redis概述JSON常见操作更新计划 Redis中JSON数据类型常见操作 完整命令参考官网 官网地址 声明: 由于操作系统, 版本更新等原因, 文章所列内容不一定100%复现, 还要以官方信息为准 https://redis.io/Redis概述 Redis是…...
深度学习InputStreamReader类
咦咦咦,各位小可爱,我是你们的好伙伴——bug菌,今天又来给大家普及Java SE相关知识点了,别躲起来啊,听我讲干货还不快点赞,赞多了我就有动力讲得更嗨啦!所以呀,养成先点赞后阅读的好…...
2023年后端面试总结
备注:这篇文章是我在2023年年初在自己的网站上写的,最近在迁移技术文章,我感觉这个也是和咱程序员相关,所以今天就决定把它迁移过来。 .......................................................................分割线..........…...
axios实现前后端通信报错Unsupported Media
使用axios向SpringBoot的后端使用post请求发送数据,发现报错Unsupported Media,最终解决方案如下: 检查变量名字是否一样,即前端传给后端的json数据键名要与后端接收的对象的成员变量名字一致检查Content-Type,post请…...
网络套接字补充——TCP网络编程
六、TCP网络编程 6.1IP地址字符串和整数之间的转换接口 //字符串转整数接口 #include <sys/socket.h> #include <netinet/in.h> #include <arpa/inet.h> int inet_aton(const char *cp, struct in_addr *inp); int inet_pton(int af, const char *strptr, …...
Nginx-记
Nginx是一个高性能的web服务器和反向代理服务器,用于HTTP、HTTPS、SMTP、POP3和IMAP协议。因它的稳定性、丰富的功能集、示例配置文件和低系统资源的消耗而闻名。 (1)更快 这表现在两个方面:一方面,在正常情况下&…...
JS面试题:call,apply,bind区别
1. 共同点 三者共同点都是改变函数内部this指向的方法 2. call用法 ini 复制代码 var a 2; var b 2; function func() { console.log(this.a, this.b) } let obj { a: 1, b: 1 } func.call(obj) func.call() 输出结果: 复制代码 1 1 2 2 解析࿱…...
Charles抓包配置代理手机连接
Charles下载地址: Charles_100519.zip官方版下载丨最新版下载丨绿色版下载丨APP下载-123云盘123云盘为您提供Charles_100519.zip最新版正式版官方版绿色版下载,Charles_100519.zip安卓版手机版apk免费下载安装到手机,支持电脑端一键快捷安装https://www.123pan.com…...
NA555、NE555、SA555和SE555系列精密定时器
这份文件是关于德州仪器(Texas Instruments)生产的NA555、NE555、SA555和SE555系列精密定时器(Precision Timers)的数据手册。以下是该文件的核心内容概述: 产品特性: 德州仪器的NA555、NE555、SA555和SE55…...
黑马鸿蒙笔记2
1.图片设置: 1 加载网络图片,申请权限。 申请权限:entry - src - resources - module.json5 2 加载本地图片 ,两种加载方式 API 鼠标悬停在Image, 点击show in API Reference interpolation:看起来更加清晰 resou…...
微信小程序uniapp+vue3+ts+pinia的环境搭建
一.创建uniapp项目 通过vue-cli创建 npx degit dcloudio/uni-preset-vue#vite-ts my-vue3-project二.安装依赖: 1.pnpm i 2.运行项目: 将package.json的 "dev:mp-weixin": "uni -p mp-weixin",改为 "serve": "u…...
MongoDB聚合运算符:$let
文章目录 MongoDB聚合运算符:$let语法使用举例 MongoDB聚合运算符:$let $let聚合运算符绑定用于表示计算的变量,并返回表达式的结果。 语法 {$let:{vars: { <var1>: <expression>, ... },in: <expression>} }vars 用于在…...
HarmonyOS像素转换-如何使用像素单位设置组件的尺寸。
1 卡片介绍 基于像素单位,展示了像素单位的基本知识与像素转换API的使用。 2 标题 像素转换(ArkTS) 3 介绍 本篇Codelab介绍像素单位的基本知识与像素单位转换API的使用。通过像素转换案例,向开发者讲解了如何使用像素单位设…...
【前端面试3+1】05v-if和v-show的区别、v-if和v-for能同时使用吗、Vuex是什么?【合并两个有序链表】
一、v-if和v-show的区别 v-if 和 v-show 是 Vue.js 中用来控制元素显示与隐藏的指令。 1.v-if: v-if 是根据表达式的真假值来决定是否渲染元素。当表达式为真时,元素会被渲染到 DOM 中;当表达式为假时,元素不会被渲染到 DOM 中。每…...
Unity WebRequest 变得简单
作者简介: 高科,先后在 IBM PlatformComputing从事网格计算,淘米网,网易从事游戏服务器开发,拥有丰富的C++,go等语言开发经验,mysql,mongo,redis等数据库,设计模式和网络库开发经验,对战棋类,回合制,moba类页游,手游有丰富的架构设计和开发经验。 (谢谢你的关注…...
vue 窗口内容滚动到底部
onMounted(() > {scrollToBottom() }) // 滚动到底部方法 const scrollToBottom () > {// 获取聊天窗口容器let chatRoom: any document.querySelector(".chat-content");// 滚动到容器底部chatRoom.scrollTop chatRoom.scrollHeight; } 效果 聊天窗口代码…...
代码随想录算法训练营Day38|LC509 斐波那契数列LC70 爬楼梯LC746 使用最小花费爬楼梯
一句话总结:难的还在后头呢。 原题链接:509 斐波那契数列 甚至用不上数组,用两个变量滚动交替即可完成。 class Solution {public int fib(int n) {if (n < 2) return n;int pre 0, cur 1;int ans 0;for (int i 2; i < n; i) {an…...
专业网站推广服务咨询/吉林百度查关键词排名
匿名函数与> > expr 等同于{ return expr; }匿名函数的参照如下:([[Type] param1[, …]]) { codeBlock; };例子: (context) > HomePage(widget.isDark, themeChanger)上面的语句翻译过来就是: function_name(context) {return Ho…...
男女做的那些事情的网站/seo薪资seo
目录 C静态库与动态库 什么是库 静态库 Linux下创建与使用静态库 Linux静态库命名规则 创建静态库(.a) 使用静态库 Linux下创建与使用动态库 linux动态库的命名规则 创建动态库(.so) 使用动态库 附件:Linu…...
网站标识代码怎么加/厦门百度竞价开户
根据你的系统选择你需要下载的jdk,32位系统对应x86,64位系统对应x64下载完后得到一个可执行文件,点击运行进入安装二、安装1.安装JDK选择你要安装到的路径,注意这个路径不能包含中文名这里我们可以通过“更改”选择自己想要安装到…...
手机app软件开发/seo外链资源
python3正则要加括号!!! 转载于:https://www.cnblogs.com/chuxiuhong/p/5885073.html 本文主要为没有使用正则表达式经验的新手入门所写。 转载请写明出处 引子 首先说 正则表达式是什么? 正则表达式,又…...
网站建设手机银行修改登录密码/优化大师win10下载
<#if startTime?datetime lt .now?datetime>:年月日时分秒比较 <#if startTime?date lt .now?date>:年月日比较 <#if startTime?time lt .now?time>:时分秒比较...
做暧暧网站/google搜索优化
&!"#$%操作系统结构分析&郭玉东 王非非 编著西安电子科技大学出版社2 0 0 2内 容 简 介本书是对Linux 操作系统内部结构的分析,其内容直接来源于Linux 操作系统的源代码,是对作者多年来从事Linux 教学和科研工作的总结。全书从操作系统的引…...