#include <stdio.h>

void print_diamond(int n)
{
    int i, j, k;

    k = 2 * n - 1;
    for (i = 0; i < n; i++) {
        for (j = 1; j <= k; j++) {
            if (j >= n - i && j <= n + i) {
                printf("*");
            } else {
                printf(" ");
            }
        }
        printf("\n");
    }
    for (i = 1; i < n; i++) {
        for (j = 1; j <= k; j++) {
            if (j > i && j <= k - i) {
                printf("*");
            } else {
                printf(" ");
            }
        }
        printf("\n");
    }
}

int main(int argc, char *argv[])
{
    print_diamond(7);

    return 0;
}

导出:

mysqldump -u UserName -p DatabaseName > DatabaseName.sql

导入:

mysql -u UserName -p DatabaseName < DatabaseName.sql

连接:mysql -u UserName -p
创建数据库:create database DatabaseName;
删除数据库:drop database DatabaseName;
查看数据库列表:show databases;
选择数据库:use DatabaseName;
显示表:show tables;
表结构:describe TabelName;
表数目:select count(*) from information_schema.tables where table_schema='DatabaseName';
查看权限:select * from mysql.user where user='UserName'\G
查看权限:show grants for UserName@host;
查询用户:select user,host from mysql.user;
授权所有权限:grant all privileges on DatabaseName.* to UserName@host identified by 'password';

https://prismjs.com/
进入下载页 选择 Languages Themes
下载 JS CSS
将 prism.js prism.css 上传至 /usr/themes/default
在 header.php </head>前插入

<link rel="stylesheet" href="<?php $this->options->themeUrl('prism.css'); ?>">
<script src="<?php $this->options->themeUrl('prism.js'); ?>"></script>

在代码块标记 ``` 后添加语言名

wget https://github.com/typecho/typecho/releases/latest/download/typecho.zip
unzip typecho.zip
安装时上传目录无法写入:chmod o+w uploads

/usr/local/nginx/conf/vhost/host.conf
后台404:将 enable-php.conf 改为 enable-php-pathinfo.conf
IP地址访问网站:server_name 添加IP地址
重启nginx:/usr/local/nginx/sbin/nginx -s reload

侧边栏不显示最近回复与其他:
/themes/default/sidebar.php 注释 ShowRecentComments ShowOther
或者在 控制台 设置外观 去勾选 显示最近回复 显示其他杂项

禁用评论:控制台 个人设置 撰写设置 默认允许 去勾选 可以被评论

不显示"评论":/themes/default/index.php 注释 interactionCount
不显示点击作者后的"评论":/themes/default/archive.php 注释 interactionCount

自定义后台路径:config.inc.php define('__TYPECHO_ADMIN_DIR__', '/admin/');

后台不显示"最近得到的回复":index.php 注释 '最近得到的回复'对应的div

首页不显示"关于":/themes/default/header.php 注释 \Widget\Contents\Page 至 endwhile

lnmp vhost add
主域名:www.wangdake.top
更多域名:wangdake.top
网站目录:/home/wwwroot/www.wangdake.top
Allow Rewrite rule:y typecho
Enable PHP Pathinfo:n
Allow access log:n
Enable IPv6:y
添加数据库和用户:y
Add SSL Certificate:y 2
Using 301 to Redirect HTTP to HTTPS:y