LINQ里的on添加多条件

Posted 2023-04-30

LINQ to SQL里边这个怎么写？

Student(ID,Name,Sex)
查询和李博同样性别的同学。

select s1.ID, s1.Name
from Student s1 inner join Student s2
on s1.Sex = s2.Sex and s2.Name='小明'

LINQ我没法在on里用&&哦

参考技术A var data = from a in Student

from b in Student

where a.Name == "李博" && a.Sex == b.Sex
select b;

rsync添加多模块，客户端推送出错！

rsync -avz /data/ [email protected]::nfsbackup/

sending incremental file list

ERROR: module is read only

rsync error: syntax or usage error (code 1) at main.c(866) [receiver=3.0.6]

rsync: read error: Connection reset by peer (104)

rsync error: error in rsync protocol data stream (code 12) at io.c(759) [sender=3.0.6]

错误出现的原因是：在服务器端的/etc/rsyncd.conf配置文件中新添加一个模块，导致客户端推送产生错误。

解决办法如下：（只要把服务端配置文件里目录和路径复制出来增加在下面就可以了（记得新建的目录要chown rsync.rsync授权一下），如果还要达到不同目录对应不同密码就要写在模块里，因为写在上面的为全局）

uid = rsync

gid = rsync

use chroot = no

max connections = 200

timeout = 300

pid file = /var/run/rsyncd.pid

lock file = /var/run/rsync.lock

log file = /var/log/rsyncd.log

ignore errors

read only = false

list = false

hosts allow = 192.168.11.0/24

hosts deny = 0.0.0.0/32

auth users =rsync_backup

secrets file = /etc/rsync.password

[backup]

path = /backup

[nfsbackup]

path=/nfsbackup

吃一堑长一智

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