chore: 添加多个图片和资源文件

添加了管理后台所需的图片资源、Excel文件、安装程序以及设计相关的图片文件
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2025-06-15 13:04:37 +08:00
parent 1e61dc3970
commit 7e47ce238b
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1、自动填充空格
以A列为例:选中A列,编辑-定位-定位条件-空值,输入=A2,按Ctrl+Enter。定位的快捷键是Ctrl+G。
2、vlookup
3、处理回车
可以通过在查找框内(通过按ctrl + f调出)输入:按住alt键不放,然后依次通过数字键盘输入1和0两个数字,放开数字键后再放开alt键。
公式替换回车 =SUBSTITUTE(A1,CHAR(10)," ")。
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create view web_order_view as
select web_kh.category as category,web_order.num as num,web_order.je as je,web_order.jsje as jsje,web_client.username as username,web_client.title as usertitle,web_client.zd1 as user_zd1 from web_order
left join web_client on web_client.id=web_order.uid
left join web_kh on web_kh.id=web_order.iid
where web_order.uid=web_client.id
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--检查在线用户的重复ip
select ip from web_session group by ip having count(*)>1;
--检查订单表是否有错误的重复记录
select a.id,b.username,a.no,a.color,a.bx from web_order a,web_client b where a.uid=b.id group by a.uid,a.iid,a.color,a.bx having count(*)>1
--新增一个用户
grant all privileges on *.* to hehe@localhost identified by "hehe" WITH GRANT OPTION;
--授权远程连接
grant all privileges on *.* to hehe@'%' identified by "hehe";
--修改表的字段
alter table web_zk modify zk decimal(5,2) unsigned not null default '0.00';
--创建索引
create index ind_upath on web_order (upath);
--输出查询结果到文本文件
select * from web_order into outfile 'c:/1.txt';
--备份数据库
mysqldump -hlocalhost -uhehe --default-character-set=latin1 -p edt > d:\edt.sql
--恢复数据库
mysql -hlocalhost -uhehe -p edt_ybd < D:\web\edt\cli\hz\ibd\mysql_ibd_2018x_20171107185606.sql
--慢查询日志
show variables like '%quer%'; slow_query_log的值为ON为开启慢查询日志,OFF则为关闭慢查询日志。
long_query_time 指定了慢查询的阈值,即如果执行语句的时间超过该阈值则为慢查询语句,默认值为10秒。
set global slow_query_log=on; 开启慢查询日志
show global status like '%slow%'; 显示慢查询状态
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--修复表
repair table xxx;
--修复索引
myisamchk /mysql/data/edt/*.MYI
----