CentOS 7离线升级OpenSSH至9.1p1操作过程及遇上的问题

2024-04-20 07:36
文章标签 问题 centos 升级 离线 p1 遇上 openssh 9.1 操作过程

本文主要是介绍CentOS 7离线升级OpenSSH至9.1p1操作过程及遇上的问题，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

在文章顶部下载适用于CentOS7的OpenSSH 9.1p1 rpm包，包含了服务器和客户端。

默认全部以root用户权限执行命令。

简单版

懒得看的话，复制以下4行命令执行即可。

tar -zxvf centos7-openssh-9.1p1.tar.gz
rpm -Uvh openssh-9.1p1-1.tl2.x86_64.rpm openssh-server-9.1p1-1.tl2.x86_64.rpm openssh-clients-9.1p1-1.tl2.x86_64.rpm
chmod 600 /etc/ssh/ssh_host_*
systemctl restart sshd

踩坑记录版

升级完成后，SSH服务无法连上，记录排查及解决问题的过程。

[root@TencentYJ240419 isayum]# tar -zxvf centos7-openssh-9.1p1.tar.gz
x openssh-9.1p1-1.tl2.x86_64.rpm
x openssh-server-9.1p1-1.tl2.x86_64.rpm
x openssh-clients-9.1p1-1.tl2.x86_64.rpm
[root@TencentYJ240419 isayum]# rpm -Uvh openssh-9.1p1-1.tl2.x86_64.rpm openssh-server-9.1p1-1.tl2.x86_64.rpm openssh-clients-9.1p1-1.tl2.x86_64.rpm 
准备中...                          ################################# [100%]
正在升级/安装...1:openssh-9.1p1-1.tl2              ################################# [ 17%]2:openssh-server-9.1p1-1.tl2       ################################# [ 33%]3:openssh-clients-9.1p1-1.tl2      ################################# [ 50%]
正在清理/删除...4:openssh-clients-7.4p1-16.el7     ################################# [ 67%]5:openssh-server-7.4p1-16.el7      ################################# [ 83%]6:openssh-7.4p1-16.el7             ################################# [100%]

升级成功后，发现SSH无法连接，但已连接的SSH不受影响。尝试启动发现异常

[root@TencentYJ240419 web_manager]# systemctl restart sshd
Job for sshd.service failed because the control process exited with error code. See "systemctl status sshd.service" and "journalctl -xe" for details.[root@TencentYJ240419 web_manager]# systemctl status sshd.service
● sshd.service - SYSV: OpenSSH server daemonLoaded: loaded (/etc/rc.d/init.d/sshd; bad; vendor preset: enabled)Active: failed (Result: exit-code) since 五 2024-04-19 15:03:35 CST; 6s agoDocs: man:systemd-sysv-generator(8)Process: 48052 ExecStop=/etc/rc.d/init.d/sshd stop (code=exited, status=0/SUCCESS)Process: 48234 ExecStart=/etc/rc.d/init.d/sshd start (code=exited, status=1/FAILURE)Main PID: 19217 (code=exited, status=0/SUCCESS)4月 19 15:03:35 TencentYJ240419 sshd[48234]: @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
4月 19 15:03:35 TencentYJ240419 sshd[48234]: Permissions 0640 for '/etc/ssh/ssh_host_ed25519_key' are too open.
4月 19 15:03:35 TencentYJ240419 sshd[48234]: It is required that your private key files are NOT accessible by others.
4月 19 15:03:35 TencentYJ240419 sshd[48234]: This private key will be ignored.
4月 19 15:03:35 TencentYJ240419 sshd[48234]: sshd: no hostkeys available -- exiting.
4月 19 15:03:35 TencentYJ240419 sshd[48234]: [FAILED]
4月 19 15:03:35 TencentYJ240419 systemd[1]: sshd.service: control process exited, code=exited status=1
4月 19 15:03:35 TencentYJ240419 systemd[1]: Failed to start SYSV: OpenSSH server daemon.
4月 19 15:03:35 TencentYJ240419 systemd[1]: Unit sshd.service entered failed state.
4月 19 15:03:35 TencentYJ240419 systemd[1]: sshd.service failed.

根据提示信息，修改对应文件的权限并重启SSH服务。

chmod 600 /etc/ssh/ssh_host_ed25519_key
systemctl restart sshd

然后尝试在服务器上ssh 127.0.0.1，发现登录不上，查看/var/log/message 发现一堆报错，如下：

[root@TencentYJ240419 .ssh]# chmod 600 /etc/ssh/ssh_host_ecdsa_key
[root@TencentYJ240419 .ssh]# tail -f /var/log/messages 
Apr 19 15:54:37 TencentYJ240419 sshd[29650]: error: @         WARNING: UNPROTECTED PRIVATE KEY FILE!          @
Apr 19 15:54:37 TencentYJ240419 sshd[29650]: error: @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
Apr 19 15:54:37 TencentYJ240419 sshd[29650]: error: Permissions 0640 for '/etc/ssh/ssh_host_ecdsa_key' are too open.
Apr 19 15:54:37 TencentYJ240419 sshd[29650]: error: It is required that your private key files are NOT accessible by others.
Apr 19 15:54:37 TencentYJ240419 sshd[29650]: error: This private key will be ignored.
Apr 19 15:54:37 TencentYJ240419 sshd[29650]: error: Could not get shadow information for root
Apr 19 15:54:37 TencentYJ240419 sshd[29650]: Failed password for root from 10.100.0.149 port 55392 ssh2
Apr 19 15:54:37 TencentYJ240419 python: Permission denied, please try again.
Apr 19 15:54:37 TencentYJ240419 sshd[29650]: Connection closed by authenticating user root 10.100.0.149 port 55392 [preauth]
Apr 19 15:54:37 TencentYJ240419 python: 10.100.0.7:50461 - - [19/Apr/2024 15:54:37] "HTTP/1.1 POST /" - 200 OKApr 19 15:55:14 TencentYJ240419 python: PING 203.107.6.88 (203.107.6.88) 56(84) bytes of data.
Apr 19 15:55:14 TencentYJ240419 python: 64 bytes from 203.107.6.88: icmp_seq=1 ttl=51 time=55.5 ms
Apr 19 15:55:14 TencentYJ240419 python: --- 203.107.6.88 ping statistics ---
Apr 19 15:55:14 TencentYJ240419 python: 1 packets transmitted, 1 received, 0% packet loss, time 0ms
Apr 19 15:55:14 TencentYJ240419 python: rtt min/avg/max/mdev = 55.520/55.520/55.520/0.000 ms
Apr 19 15:55:15 TencentYJ240419 python: PING 10.100.0.149 (10.100.0.149) 56(84) bytes of data.
Apr 19 15:55:15 TencentYJ240419 python: 64 bytes from 10.100.0.149: icmp_seq=1 ttl=64 time=0.060 ms
Apr 19 15:55:15 TencentYJ240419 python: --- 10.100.0.149 ping statistics ---
Apr 19 15:55:15 TencentYJ240419 python: 1 packets transmitted, 1 received, 0% packet loss, time 0ms
Apr 19 15:55:15 TencentYJ240419 python: rtt min/avg/max/mdev = 0.060/0.060/0.060/0.000 ms
Apr 19 15:55:15 TencentYJ240419 sshd[29670]: error: @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
Apr 19 15:55:15 TencentYJ240419 sshd[29670]: error: @         WARNING: UNPROTECTED PRIVATE KEY FILE!          @
Apr 19 15:55:15 TencentYJ240419 sshd[29670]: error: @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
Apr 19 15:55:15 TencentYJ240419 sshd[29670]: error: Permissions 0640 for '/etc/ssh/ssh_host_rsa_key' are too open.
Apr 19 15:55:15 TencentYJ240419 sshd[29670]: error: It is required that your private key files are NOT accessible by others.
Apr 19 15:55:15 TencentYJ240419 sshd[29670]: error: This private key will be ignored.
Apr 19 15:55:15 TencentYJ240419 sshd[29670]: error: Could not get shadow information for root
Apr 19 15:55:15 TencentYJ240419 sshd[29670]: Failed password for root from 10.100.0.149 port 55394 ssh2
Apr 19 15:55:15 TencentYJ240419 sshd[29670]: Connection closed by authenticating user root 10.100.0.149 port 55394 [preauth]
Apr 19 15:55:15 TencentYJ240419 sshd[29674]: error: @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
Apr 19 15:55:15 TencentYJ240419 sshd[29674]: error: @         WARNING: UNPROTECTED PRIVATE KEY FILE!          @
Apr 19 15:55:15 TencentYJ240419 sshd[29674]: error: @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
Apr 19 15:55:15 TencentYJ240419 sshd[29674]: error: Permissions 0640 for '/etc/ssh/ssh_host_rsa_key' are too open.
Apr 19 15:55:15 TencentYJ240419 sshd[29674]: error: It is required that your private key files are NOT accessible by others.
Apr 19 15:55:15 TencentYJ240419 sshd[29674]: error: This private key will be ignored.
Apr 19 15:55:15 TencentYJ240419 sshd[29674]: error: Could not get shadow information for root
Apr 19 15:55:15 TencentYJ240419 sshd[29674]: Failed password for root from 10.100.0.149 port 55396 ssh2
Apr 19 15:55:15 TencentYJ240419 sshd[29674]: Connection closed by authenticating user root 10.100.0.149 port 55396 [preauth]
Apr 19 15:55:15 TencentYJ240419 sshd[29678]: error: @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
Apr 19 15:55:15 TencentYJ240419 sshd[29678]: error: @         WARNING: UNPROTECTED PRIVATE KEY FILE!          @
Apr 19 15:55:15 TencentYJ240419 sshd[29678]: error: @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
Apr 19 15:55:15 TencentYJ240419 sshd[29678]: error: Permissions 0640 for '/etc/ssh/ssh_host_rsa_key' are too open.
Apr 19 15:55:15 TencentYJ240419 sshd[29678]: error: It is required that your private key files are NOT accessible by others.
Apr 19 15:55:15 TencentYJ240419 sshd[29678]: error: This private key will be ignored.
Apr 19 15:55:16 TencentYJ240419 sshd[29678]: error: Could not get shadow information for root
Apr 19 15:55:16 TencentYJ240419 sshd[29678]: Failed password for root from 10.100.0.149 port 55398 ssh2
Apr 19 15:55:16 TencentYJ240419 python: Permission denied, please try again.
Apr 19 15:55:16 TencentYJ240419 sshd[29678]: Connection closed by authenticating user root 10.100.0.149 port 55398 [preauth]
Apr 19 15:55:16 TencentYJ240419 python: 10.100.0.7:50464 - - [19/Apr/2024 15:55:16] "HTTP/1.1 POST /" - 200 OK
^C
[root@TencentYJ240419 .ssh]# chmod 600 /etc/ssh/ssh_host_rsa_key
[root@TencentYJ240419 .ssh]# tail -f /var/log/messages 
Apr 19 15:55:15 TencentYJ240419 sshd[29678]: error: @         WARNING: UNPROTECTED PRIVATE KEY FILE!          @
Apr 19 15:55:15 TencentYJ240419 sshd[29678]: error: @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
Apr 19 15:55:15 TencentYJ240419 sshd[29678]: error: Permissions 0640 for '/etc/ssh/ssh_host_rsa_key' are too open.
Apr 19 15:55:15 TencentYJ240419 sshd[29678]: error: It is required that your private key files are NOT accessible by others.
Apr 19 15:55:15 TencentYJ240419 sshd[29678]: error: This private key will be ignored.
Apr 19 15:55:16 TencentYJ240419 sshd[29678]: error: Could not get shadow information for root
Apr 19 15:55:16 TencentYJ240419 sshd[29678]: Failed password for root from 10.100.0.149 port 55398 ssh2
Apr 19 15:55:16 TencentYJ240419 python: Permission denied, please try again.
Apr 19 15:55:16 TencentYJ240419 sshd[29678]: Connection closed by authenticating user root 10.100.0.149 port 55398 [preauth]
Apr 19 15:55:16 TencentYJ240419 python: 10.100.0.7:50464 - - [19/Apr/2024 15:55:16] "HTTP/1.1 POST /" - 200 OK
Apr 19 15:55:36 TencentYJ240419 python: PING 203.107.6.88 (203.107.6.88) 56(84) bytes of data.
Apr 19 15:55:36 TencentYJ240419 python: 64 bytes from 203.107.6.88: icmp_seq=1 ttl=51 time=55.6 ms
Apr 19 15:55:36 TencentYJ240419 python: --- 203.107.6.88 ping statistics ---
Apr 19 15:55:36 TencentYJ240419 python: 1 packets transmitted, 1 received, 0% packet loss, time 0ms
Apr 19 15:55:36 TencentYJ240419 python: rtt min/avg/max/mdev = 55.656/55.656/55.656/0.000 ms
Apr 19 15:55:37 TencentYJ240419 python: PING 10.100.0.149 (10.100.0.149) 56(84) bytes of data.
Apr 19 15:55:37 TencentYJ240419 python: 64 bytes from 10.100.0.149: icmp_seq=1 ttl=64 time=0.052 ms
Apr 19 15:55:37 TencentYJ240419 python: --- 10.100.0.149 ping statistics ---
Apr 19 15:55:37 TencentYJ240419 python: 1 packets transmitted, 1 received, 0% packet loss, time 0ms
Apr 19 15:55:37 TencentYJ240419 python: rtt min/avg/max/mdev = 0.052/0.052/0.052/0.000 ms
Apr 19 15:55:37 TencentYJ240419 sshd[29697]: error: Could not get shadow information for root
Apr 19 15:55:37 TencentYJ240419 sshd[29697]: Failed password for root from 10.100.0.149 port 55400 ssh2
Apr 19 15:55:37 TencentYJ240419 sshd[29697]: Connection closed by authenticating user root 10.100.0.149 port 55400 [preauth]
Apr 19 15:55:37 TencentYJ240419 sshd[29701]: error: Could not get shadow information for root
Apr 19 15:55:37 TencentYJ240419 sshd[29701]: Failed password for root from 10.100.0.149 port 55402 ssh2
Apr 19 15:55:37 TencentYJ240419 sshd[29701]: Connection closed by authenticating user root 10.100.0.149 port 55402 [preauth]
Apr 19 15:55:38 TencentYJ240419 sshd[29705]: error: Could not get shadow information for root
Apr 19 15:55:38 TencentYJ240419 sshd[29705]: Failed password for root from 10.100.0.149 port 55404 ssh2
Apr 19 15:55:38 TencentYJ240419 python: Permission denied, please try again.
Apr 19 15:55:38 TencentYJ240419 sshd[29705]: Connection closed by authenticating user root 10.100.0.149 port 55404 [preauth]
Apr 19 15:55:38 TencentYJ240419 python: 10.100.0.7:50467 - - [19/Apr/2024 15:55:38] "HTTP/1.1 POST /" - 200 OK
^C
[root@TencentYJ240419 .ssh]# chmod 600 /etc/ssh/ssh_host_rsa_key
[root@TencentYJ240419 .ssh]# tail -f /var/log/messages 
Apr 19 15:55:37 TencentYJ240419 sshd[29697]: Failed password for root from 10.100.0.149 port 55400 ssh2
Apr 19 15:55:37 TencentYJ240419 sshd[29697]: Connection closed by authenticating user root 10.100.0.149 port 55400 [preauth]
Apr 19 15:55:37 TencentYJ240419 sshd[29701]: error: Could not get shadow information for root
Apr 19 15:55:37 TencentYJ240419 sshd[29701]: Failed password for root from 10.100.0.149 port 55402 ssh2
Apr 19 15:55:37 TencentYJ240419 sshd[29701]: Connection closed by authenticating user root 10.100.0.149 port 55402 [preauth]
Apr 19 15:55:38 TencentYJ240419 sshd[29705]: error: Could not get shadow information for root
Apr 19 15:55:38 TencentYJ240419 sshd[29705]: Failed password for root from 10.100.0.149 port 55404 ssh2
Apr 19 15:55:38 TencentYJ240419 python: Permission denied, please try again.
Apr 19 15:55:38 TencentYJ240419 sshd[29705]: Connection closed by authenticating user root 10.100.0.149 port 55404 [preauth]
Apr 19 15:55:38 TencentYJ240419 python: 10.100.0.7:50467 - - [19/Apr/2024 15:55:38] "HTTP/1.1 POST /" - 200 OK
Apr 19 15:55:54 TencentYJ240419 python: PING 203.107.6.88 (203.107.6.88) 56(84) bytes of data.
Apr 19 15:55:54 TencentYJ240419 python: 64 bytes from 203.107.6.88: icmp_seq=1 ttl=51 time=55.5 ms
Apr 19 15:55:54 TencentYJ240419 python: --- 203.107.6.88 ping statistics ---
Apr 19 15:55:54 TencentYJ240419 python: 1 packets transmitted, 1 received, 0% packet loss, time 0ms
Apr 19 15:55:54 TencentYJ240419 python: rtt min/avg/max/mdev = 55.569/55.569/55.569/0.000 ms
Apr 19 15:55:55 TencentYJ240419 python: PING 10.100.0.149 (10.100.0.149) 56(84) bytes of data.
Apr 19 15:55:55 TencentYJ240419 python: 64 bytes from 10.100.0.149: icmp_seq=1 ttl=64 time=0.044 ms
Apr 19 15:55:55 TencentYJ240419 python: --- 10.100.0.149 ping statistics ---
Apr 19 15:55:55 TencentYJ240419 python: 1 packets transmitted, 1 received, 0% packet loss, time 0ms
Apr 19 15:55:55 TencentYJ240419 python: rtt min/avg/max/mdev = 0.044/0.044/0.044/0.000 ms
Apr 19 15:55:55 TencentYJ240419 sshd[29724]: error: Could not get shadow information for root
Apr 19 15:55:55 TencentYJ240419 sshd[29724]: Failed password for root from 10.100.0.149 port 55406 ssh2
Apr 19 15:55:55 TencentYJ240419 sshd[29724]: Connection closed by authenticating user root 10.100.0.149 port 55406 [preauth]
Apr 19 15:55:55 TencentYJ240419 sshd[29728]: error: Could not get shadow information for root
Apr 19 15:55:55 TencentYJ240419 sshd[29728]: Failed password for root from 10.100.0.149 port 55408 ssh2
Apr 19 15:55:55 TencentYJ240419 sshd[29728]: Connection closed by authenticating user root 10.100.0.149 port 55408 [preauth]
Apr 19 15:55:56 TencentYJ240419 sshd[29732]: error: Could not get shadow information for root
Apr 19 15:55:56 TencentYJ240419 sshd[29732]: Failed password for root from 10.100.0.149 port 55410 ssh2
Apr 19 15:55:56 TencentYJ240419 python: Permission denied, please try again.
Apr 19 15:55:56 TencentYJ240419 sshd[29732]: Connection closed by authenticating user root 10.100.0.149 port 55410 [preauth]
Apr 19 15:55:56 TencentYJ240419 python: 10.100.0.7:50468 - - [19/Apr/2024 15:55:56] "HTTP/1.1 POST /" - 200 OK

这篇关于CentOS 7离线升级OpenSSH至9.1p1操作过程及遇上的问题的文章就介绍到这儿，希望我们推荐的文章对编程师们有所帮助！


http://www.chinasem.cn/article/919656。

相关文章

MybatisGenerator文件生成不出对应文件的问题

MybatisGenerator文件生成不出对应文件的问题

《MybatisGenerator文件生成不出对应文件的问题》本文介绍了使用MybatisGenerator生成文件时遇到的问题及解决方法,主要步骤包括检查目标表是否存在、是否能连接到数据库、配置生成... 目录MyBATisGenerator 文件生成不出对应文件先在项目结构里引入“targetProje
阅读更多...
C#使用HttpClient进行Post请求出现超时问题的解决及优化

C#使用HttpClient进行Post请求出现超时问题的解决及优化

《C#使用HttpClient进行Post请求出现超时问题的解决及优化》最近我的控制台程序发现有时候总是出现请求超时等问题,通常好几分钟最多只有3-4个请求,在使用apipost发现并发10个5分钟也... 目录优化结论单例HttpClient连接池耗尽和并发并发异步最终优化后优化结论我直接上优化结论吧，
阅读更多...
Java内存泄漏问题的排查、优化与最佳实践

Java内存泄漏问题的排查、优化与最佳实践

《Java内存泄漏问题的排查、优化与最佳实践》在Java开发中,内存泄漏是一个常见且令人头疼的问题,内存泄漏指的是程序在运行过程中,已经不再使用的对象没有被及时释放,从而导致内存占用不断增加,最终... 目录引言1. 什么是内存泄漏？常见的内存泄漏情况2. 如何排查 Java 中的内存泄漏？2.1 使用 J
阅读更多...
numpy求解线性代数相关问题

numpy求解线性代数相关问题

《numpy求解线性代数相关问题》本文主要介绍了numpy求解线性代数相关问题,文中通过示例代码介绍的非常详细,对大家的学习或者工作具有一定的参考学习价值,需要的朋友们下面随着小编来一起学习学习吧... 在numpy中有numpy.array类型和numpy.mat类型，前者是数组类型，后者是矩阵类型。数组
阅读更多...
解决systemctl reload nginx重启Nginx服务报错:Job for nginx.service invalid问题

解决systemctl reload nginx重启Nginx服务报错:Job for nginx.service invalid问题

《解决systemctlreloadnginx重启Nginx服务报错:Jobfornginx.serviceinvalid问题》文章描述了通过`systemctlstatusnginx.se... 目录systemctl reload nginx重启Nginx服务报错:Job for nginx.javas
阅读更多...
怎么关闭Ubuntu无人值守升级? Ubuntu禁止自动更新的技巧

怎么关闭Ubuntu无人值守升级? Ubuntu禁止自动更新的技巧

《怎么关闭Ubuntu无人值守升级?Ubuntu禁止自动更新的技巧》UbuntuLinux系统禁止自动更新的时候，提示“无人值守升级在关机期间，请不要关闭计算机进程”，该怎么解决这个问题？详细请看... 本教程教你如何处理无人值守的升级，即 Ubuntu linux 的自动系统更新。来源：https://
阅读更多...
Redis缓存问题与缓存更新机制详解

Redis缓存问题与缓存更新机制详解

《Redis缓存问题与缓存更新机制详解》本文主要介绍了缓存问题及其解决方案,包括缓存穿透、缓存击穿、缓存雪崩等问题的成因以及相应的预防和解决方法,同时,还详细探讨了缓存更新机制,包括不同情况下的缓存更... 目录一、缓存问题1.1 缓存穿透1.1.1 问题来源1.1.2 解决方案1.2 缓存击穿1.2.1
阅读更多...
vue解决子组件样式覆盖问题scoped deep

vue解决子组件样式覆盖问题scoped deep

《vue解决子组件样式覆盖问题scopeddeep》文章主要介绍了在Vue项目中处理全局样式和局部样式的方法,包括使用scoped属性和深度选择器（/deep/）来覆盖子组件的样式,作者建议所有组件... 目录前言scoped分析deep分析使用总结所有组件必须加scoped父组件覆盖子组件使用deep前言
阅读更多...
解决Cron定时任务中Pytest脚本无法发送邮件的问题

解决Cron定时任务中Pytest脚本无法发送邮件的问题

《解决Cron定时任务中Pytest脚本无法发送邮件的问题》文章探讨解决在Cron定时任务中运行Pytest脚本时邮件发送失败的问题,先优化环境变量,再检查Pytest邮件配置,接着配置文件确保SMT... 目录引言1. 环境变量优化：确保Cron任务可以正确执行解决方案：1.1. 创建一个脚本1.2. 修
阅读更多...
Python 标准库time时间的访问和转换问题小结

Python 标准库time时间的访问和转换问题小结

《Python标准库time时间的访问和转换问题小结》time模块为Python提供了处理时间和日期的多种功能,适用于多种与时间相关的场景,包括获取当前时间、格式化时间、暂停程序执行、计算程序运行时... 目录模块介绍使用场景主要类主要函数 - time()- sleep()- localtime()- g
阅读更多...

Copyright China编程 23002807@qq.com

沪ICP备2023033072号-2