posted @ 2019-05-18 13:29 saber゛ Views(196) Comments(0) Diggs(0) Edit
posted @ 2019-05-18 12:10 saber゛ Views(199) Comments(0) Diggs(0) Edit
re(正则表达式) 字符匹配: 普通字符匹配:re.findall("alex","shfalexjaf"),直接查找符合的字符 元字符: . ^ $ * + ? {} [] () | \ Read More
posted @ 2019-05-18 12:06 saber゛ Views(236) Comments(0) Diggs(0) Edit
序列化:把对象(变量)从内存中变成可存储可传输的过程称之为序列化,Python中叫做pickling,其他语言中也被称之为serialization,marshalling,flattening等等 序列化之后就可以将内容存储到硬盘或通过网络传输到别的机器上 反序列化:将序列化的对象从硬盘中读取到内 Read More
posted @ 2019-05-18 11:50 saber゛ Views(183) Comments(0) Diggs(0) Edit
posted @ 2019-05-18 11:15 saber゛ Views(179) Comments(0) Diggs(0) Edit
时间之间的相互转换示意图 Read More
posted @ 2019-05-18 11:10 saber゛ Views(211) Comments(0) Diggs(0) Edit
启动流程: BIOS ——》 MBR(主引导记录,找到系统在哪个分区) ——》 boot loader(grub) ——》kernel(内核)——》进入启动级别init 硬盘的最小读取单位是一个扇区,一个扇区大小是512字节 查看操作系统的版本:cat /etc/redhat-release 查看内 Read More
posted @ 2019-05-18 00:38 saber゛ Views(890) Comments(0) Diggs(0) Edit
posted @ 2019-05-17 22:44 saber゛ Views(198) Comments(0) Diggs(0) Edit
posted @ 2019-05-17 00:30 saber゛ Views(240) Comments(0) Diggs(0) Edit
posted @ 2019-05-17 00:29 saber゛ Views(167) Comments(0) Diggs(0) Edit