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 基础
列表常用方法
字符串常用方法
字典常用方法
集合常用方法
进程
线程
协程
、、
装饰器
生成器
迭代器
面向对象
面向对象三大特性封装，继承，多态
静态方法、类方法、属性方法
魔法方法
反射、、和 
深浅拷贝
 垃圾回收机制
上下文管理
高阶函数

 事物
 中的锁
 优化
 !" #
 主从同步原理
 主从
! 备份
!慢查询应用
!主从一致校验
!基于 $% 的主从复制
&'
' 的五大数据类型实现原理
' 事物
' 分布式锁
布隆过滤器　　
' 雪崩(穿透(击穿
主从同步
哨兵模式!!!!'
' 集群
&'!)* 限流、请求次数限制、唯一登陆
场景需求

问  问  答案
问  问  答案
&'!持久化 +
场景需求
问一参考答案：如何开启持久化及持久化选项
问二参考答案：文件重写的触发
问三参考答案：可以实现数据的热备份，还需要设置持久化呢？
问四参考答案：硬盘阻塞问题定位
&'!乐观、悲观、分布式锁
 场景需求
 参考答案
&'!数据淘汰策略
&'!哨兵集群
场景需求
参考答案
数据结构
常见数据结构
二分法查找
冒泡法排序
快排
递归斐波那契
青蛙跳台阶
场景题
单例模式使用场景
工厂模式使用场景
$%!镜像重构
 场景需求
参考答案
,'-!负载均衡
场景需求
答案参考
,'-! 证书
 场景需求
 答案参考
业务!) 即时通讯
场景需求
参考答案
业务!大文件上传
场景需求
参考答案
业务!断点续传
场景需求
参考答案
业务!.- 批量录入
场景需求
参考答案
业务!退款算法
场景需求

参考答案

'/-

'/-!/0'

场景需求

参考答案

'/-!是男人就记 #命令

系统信息

关机

文件和目录

文件搜索

挂载系统

磁盘空间

用户和群组

文件的权限

文件的特殊属性

打包和压缩文件

&* 管理工具

12 管理工具

查看文件内容

字符设置、文件格式转换

备份

爬虫附加

爬取京东评论

场景需求

参考答案

爬取自如网

场景需求

参考答案

01: python 基础

1.1 列表常用方法

#1. append

用于在列表末尾追加新的对象

34556

78#the result

：

[1, 2, 3, 4]

#2. count

方法统计某个元素在列表中出现的次数

34'aa'5'bb'5'cc'5'aa'5'aa'6

print7/7'aa'88#the result

：

#3. extend

方法可以在列表的末尾一次性追加另一个序列中的多个值

34556

934556

-798#the result

：

[1, 2, 3, 4, 5, 6]

#4. index

函数用于从列表中找出某个值第一个匹配项的索引位置

345556

print7'-788#the result

：

#5. insert

方法用于将对象插入到列表中

34556

'75'aa'8#the result : ['aa', 1, 2, 3]

#6. pop

方法会移除列表中的一个元素（默认是最后一个），并且返回该元素的值

34556

78#the result

：

[1, 2]

78

#7. remove

方法用于移除列表中某个值的第一个匹配项

34'aa'5'bb'5'cc'5'aa'6

:07'aa'8#the result

：

['bb', 'cc', 'aa']

#8. reverse

方法将列表中的元素反向存放

34'a'5'b'5'c'6

078#the result

：

['c', 'b', 'a']

#9. sort

方法用于在原位置对列表进行排序，意味着改变原来的列表，让其中的元素按一定顺序排列

34'a'5'b'5'c'5556

78#the result

：

[1, 2, 3, 'a', 'b', 'c']

#10. enumrate

'34556

for %50in /:7'58

print7%508

1.2 字符串常用方法

#1. %nd

方法可以在一个较长的字符串中查找子串，他返回子串所在位置的最左端索引，如果没有找到则返回

-1

3'abcdefghijk'

print7;7'abc'88#the result

：

print7;7'abc'5588#the result

：

指定查找的起始和结束查找位置

#2. join

方法是非常重要的字符串方法，他是

split

方法的逆方法，用来连接序列中的元素，并且需要被连接的元素都

必须是字符串。

34'1'5'2'5'3'6

print7'+'<'788#the result

：

1+2+3

#3. split

方法

是一个非常重要的字符串，它是

join

的逆方法，用来将字符串分割成序列

print7'1+2+3+4''7'+'88#the result

：

['1', '2', '3', '4']

#4. strip

方法返回去除首位空格（不包括内部）的字符串

print7" test test "'788#the result

：“

test test”

#5. replace

方法返回某字符串所有匹配项均被替换之后得到字符串

print7"This is a test"7'is'5'is_test'88#the result

：

This_test is_test a test

1.3 字典常用方法

#1. clear

方法清除字典中所有的项，这是一个原地操作，所以无返回值（或则说返回

None

）

3='name'"tom">

78

print78#the result : {}

#2. fromkeys

方法使用给定的键建立新的字典，每个键都对应一个默认的值

None

print7=>+:%74'name'5'age'688#the result

　：　

{'age': None, 'name': None}

#3. get

方法是个更宽松的访问字典项的方法，如果试图访问字典中不存在的项时不会报错仅会返回：

None

3='Tom'5'Jack'5'Fly'>

print77'Tom'88#the result

：

8777

print77'not_exist'88#the result

：

None

#4. for

循环字典的三种方法

3='Tom'5'Jack'5'Fly'>

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