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提交 34ec7ab9 编写于 作者: 彭世瑜's avatar 彭世瑜
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blog/mysq-advance/mysql-index.md
浏览文件 @ 34ec7ab9
......@@ -867,3 +867,423 @@ mysql> explain select count(*) from tb_user;
1 row in set, 1 warning (0.00 sec)
```
索引使用
创建测试表
```sql
create table tb_sku(
id int primary key auto_increment,
uuid char(36)
);
```
## 6、索引使用
### 6.1、验证索引效率
生成测试数据（1000万条记录）
方式一：使用MySQL的自定义函数
速度较慢，适合较少的数据
```sql
-- 1、定义个生成测试数据的函数
-- 修改语句结束符
delimiter $$
-- 创建函数
create function init_data(total int) returns int
begin
-- 声明局部变量
declare i int default 0;
-- 循环处理
while i < total do
-- 生成测试数据
insert into tb_sku (`uuid`) values (uuid());
set i = i + 1;
end while;
-- 返回值
return i;
end
-- 结束
$$
-- 修改语句结束符
delimiter ;
-- 2、调用函数生成数据(100W)
mysql> select init_data(1000000);
+--------------------+
| init_data(1000000) |
+--------------------+
| 1000000 |
+--------------------+
1 row in set (1 min 16.08 sec)
-- 3、删除函数
drop function init_data;
```
方式二：
使用Python脚本生成，适合生成大量数据
```python
# pip install records mysqlclient
import records
import uuid
db = records.Database('mysql://root:123456@localhost/data?charset=utf8')
# 100 * 100000 = 1000万条数据
for i in range(100):
data = [{'uuid': str(uuid.uuid4())} for i in range(100000)]
db.bulk_query("insert into tb_sku(uuid) values(:uuid)", data)
```
```sql
mysql> select count(*) from tb_sku;
+----------+
| count(*) |
+----------+
| 10000000 |
+----------+
1 row in set (0.38 sec)
mysql> select * from tb_sku limit 1;
+----+--------------------------------------+
| id | uuid |
+----+--------------------------------------+
| 1 | 166fa508-2911-494d-aed2-2a2ee81a2a64 |
+----+--------------------------------------+
1 row in set (0.00 sec)
```
验证索引效率
```sql
-- 为建立索引之前，执行如下SQL，查看SQL的耗时
mysql> select * from tb_sku where uuid = '166fa508-2911-494d-aed2-2a2ee81a2a64';
+----+--------------------------------------+
| id | uuid |
+----+--------------------------------------+
| 1 | 166fa508-2911-494d-aed2-2a2ee81a2a64 |
+----+--------------------------------------+
1 row in set (2.15 sec)
-- 创建索引
mysql> create index idx_sku_uuid on tb_sku (uuid);
Query OK, 0 rows affected (21.85 sec)
Records: 0 Duplicates: 0 Warnings: 0
-- 再次执行相同的SQL语句，查看SQL耗时
mysql> select * from tb_sku where uuid = '166fa508-2911-494d-aed2-2a2ee81a2a64';
+----+--------------------------------------+
| id | uuid |
+----+--------------------------------------+
| 1 | 166fa508-2911-494d-aed2-2a2ee81a2a64 |
+----+--------------------------------------+
1 row in set (0.01 sec)
-- 通过主键查询
mysql> select * from tb_sku where id = 1;
+----+--------------------------------------+
| id | uuid |
+----+--------------------------------------+
| 1 | 166fa508-2911-494d-aed2-2a2ee81a2a64 |
+----+--------------------------------------+
1 row in set (0.00 sec)
-- 查看执行计划
mysql> explain select * from tb_sku where uuid = '166fa508-2911-494d-aed2-2a2ee81a2a64';
+----+-------------+--------+------------+------+---------------+--------------+---------+-------+------+----------+-------------+
| id | select_type | table | partitions | type | possible_keys | key | key_len | ref | rows | filtered | Extra |
+----+-------------+--------+------------+------+---------------+--------------+---------+-------+------+----------+-------------+
| 1 | SIMPLE | tb_sku | NULL | ref | idx_sku_uuid | idx_sku_uuid | 145 | const | 1 | 100.00 | Using index |
+----+-------------+--------+------------+------+---------------+--------------+---------+-------+------+----------+-------------+
1 row in set, 1 warning (0.00 sec)
```
### 6.2、最左前缀法则
如果索引了多列（联合索引），要遵守最左前缀法则。
最左前缀法则指的是查询从索引的最左侧列开始，并且不跳过索引中的列。
如果跳过某一列，索引将部分失效（后面的字段索引失效）
```sql
-- 查看表数据
select * from tb_user;
+----+--------+-------------+------------+------+--------+-------------+
| id | name | phone | profession | age | status | email |
+----+--------+-------------+------------+------+--------+-------------+
| 1 | 张飞 | 15210231227 | 美术 | 23 | 1 | 123@qq.com |
| 2 | 关羽 | 15210231297 | 物理 | 24 | 1 | 3339@qq.com |
| 3 | 刘备 | 15214231297 | 数学 | 25 | 0 | 666@qq.com |
| 4 | 孙权 | 15215231297 | 语文 | 20 | 1 | 111@qq.com |
+----+--------+-------------+------------+------+--------+-------------+
4 rows in set (0.01 sec)
-- 查看表中的索引
show index from tb_user;
+---------+------------+--------------------------------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+---------------+---------+------------+
| Table | Non_unique | Key_name | Seq_in_index | Column_name | Collation | Cardinality | Sub_part | Packed | Null | Index_type | Comment | Index_comment | Visible | Expression |
+---------+------------+--------------------------------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+---------------+---------+------------+
| tb_user | 0 | PRIMARY | 1 | id | A | 4 | NULL | NULL | | BTREE | | | YES | NULL |
| tb_user | 0 | idx_user_phone | 1 | phone | A | 4 | NULL | NULL | YES | BTREE | | | YES | NULL |
| tb_user | 1 | idx_user_name | 1 | name | A | 4 | NULL | NULL | YES | BTREE | | | YES | NULL |
| tb_user | 1 | idx_user_profession_age_status | 1 | profession | A | 4 | NULL | NULL | YES | BTREE | | | YES | NULL |
| tb_user | 1 | idx_user_profession_age_status | 2 | age | A | 4 | NULL | NULL | YES | BTREE | | | YES | NULL |
| tb_user | 1 | idx_user_profession_age_status | 3 | status | A | 4 | NULL | NULL | YES | BTREE | | | YES | NULL |
| tb_user | 1 | idx_user_email | 1 | email | A | 4 | NULL | NULL | YES | BTREE | | | YES | NULL |
+---------+------------+--------------------------------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+---------------+---------+------------+
7 rows in set (0.06 sec)
-- 查询数据
select * from tb_user where profession = '美术' and age = 23 and status = 1;
+----+--------+-------------+------------+------+--------+------------+
| id | name | phone | profession | age | status | email |
+----+--------+-------------+------------+------+--------+------------+
| 1 | 张飞 | 15210231227 | 美术 | 23 | 1 | 123@qq.com |
+----+--------+-------------+------------+------+--------+------------+
1 row in set (0.00 sec)
-- 查看用到的索引:profession、age、status
explain select * from tb_user where profession = '美术' and age = 23 and status = 1;
+----+-------------+---------+------------+------+--------------------------------+--------------------------------+---------+-------------------+------+----------+-------+
| id | select_type | table | partitions | type | possible_keys | key | key_len | ref | rows | filtered | Extra |
+----+-------------+---------+------------+------+--------------------------------+--------------------------------+---------+-------------------+------+----------+-------+
| 1 | SIMPLE | tb_user | NULL | ref | idx_user_profession_age_status | idx_user_profession_age_status | 53 | const,const,const | 1 | 100.00 | NULL |
+----+-------------+---------+------------+------+--------------------------------+--------------------------------+---------+-------------------+------+----------+-------+
1 row in set, 1 warning (0.00 sec)
-- 查询profession和age，使用到了索引
explain select * from tb_user where profession = '美术' and age = 23;
+----+-------------+---------+------------+------+--------------------------------+--------------------------------+---------+-------------+------+----------+-------+
| id | select_type | table | partitions | type | possible_keys | key | key_len | ref | rows | filtered | Extra |
+----+-------------+---------+------------+------+--------------------------------+--------------------------------+---------+-------------+------+----------+-------+
| 1 | SIMPLE | tb_user | NULL | ref | idx_user_profession_age_status | idx_user_profession_age_status | 48 | const,const | 1 | 100.00 | NULL |
+----+-------------+---------+------------+------+--------------------------------+--------------------------------+---------+-------------+------+----------+-------+
1 row in set, 1 warning (0.00 sec)
-- 单独查询profession，使用到了索引
explain select * from tb_user where profession = '美术';
+----+-------------+---------+------------+------+--------------------------------+--------------------------------+---------+-------+------+----------+-------+
| id | select_type | table | partitions | type | possible_keys | key | key_len | ref | rows | filtered | Extra |
+----+-------------+---------+------------+------+--------------------------------+--------------------------------+---------+-------+------+----------+-------+
| 1 | SIMPLE | tb_user | NULL | ref | idx_user_profession_age_status | idx_user_profession_age_status | 43 | const | 1 | 100.00 | NULL |
+----+-------------+---------+------------+------+--------------------------------+--------------------------------+---------+-------+------+----------+-------+
1 row in set, 1 warning (0.01 sec)
-- 查询age和status，没有使用到索引
explain select * from tb_user where age = 23 and status = 1;
+----+-------------+---------+------------+------+---------------+------+---------+------+------+----------+-------------+
| id | select_type | table | partitions | type | possible_keys | key | key_len | ref | rows | filtered | Extra |
+----+-------------+---------+------------+------+---------------+------+---------+------+------+----------+-------------+
| 1 | SIMPLE | tb_user | NULL | ALL | NULL | NULL | NULL | NULL | 4 | 25.00 | Using where |
+----+-------------+---------+------------+------+---------------+------+---------+------+------+----------+-------------+
1 row in set, 1 warning (0.01 sec)
-- 单独查询status，没有使用到索引
explain select * from tb_user where status = 1;
+----+-------------+---------+------------+------+---------------+------+---------+------+------+----------+-------------+
| id | select_type | table | partitions | type | possible_keys | key | key_len | ref | rows | filtered | Extra |
+----+-------------+---------+------------+------+---------------+------+---------+------+------+----------+-------------+
| 1 | SIMPLE | tb_user | NULL | ALL | NULL | NULL | NULL | NULL | 4 | 25.00 | Using where |
+----+-------------+---------+------------+------+---------------+------+---------+------+------+----------+-------------+
1 row in set, 1 warning (0.00 sec)
-- 跳过中间的age字段，只用到了profession，而status没有用到索引
explain select * from tb_user where profession = '美术' and status = 1;
+----+-------------+---------+------------+------+--------------------------------+--------------------------------+---------+-------+------+----------+-----------------------+
| id | select_type | table | partitions | type | possible_keys | key | key_len | ref | rows | filtered | Extra |
+----+-------------+---------+------------+------+--------------------------------+--------------------------------+---------+-------+------+----------+-----------------------+
| 1 | SIMPLE | tb_user | NULL | ref | idx_user_profession_age_status | idx_user_profession_age_status | 43 | const | 1 | 25.00 | Using index condition |
+----+-------------+---------+------------+------+--------------------------------+--------------------------------+---------+-------+------+----------+-----------------------+
1 row in set, 1 warning (0.00 sec)
-- 索引字段可以交换顺序，也能使用到索引
explain select * from tb_user where age = 23 and status = 1 and profession = '美术';
+----+-------------+---------+------------+------+--------------------------------+--------------------------------+---------+-------------------+------+----------+-------+
| id | select_type | table | partitions | type | possible_keys | key | key_len | ref | rows | filtered | Extra |
+----+-------------+---------+------------+------+--------------------------------+--------------------------------+---------+-------------------+------+----------+-------+
| 1 | SIMPLE | tb_user | NULL | ref | idx_user_profession_age_status | idx_user_profession_age_status | 53 | const,const,const | 1 | 100.00 | NULL |
+----+-------------+---------+------------+------+--------------------------------+--------------------------------+---------+-------------------+------+----------+-------+
1 row in set, 1 warning (0.00 sec)
```
### 6.3、范围查询
联合索引中，出现范围查询（>、<），范围查询右侧的列索引失效
```sql
select * from tb_user where profession = '美术' and age > 22 and status = 1;
+----+--------+-------------+------------+------+--------+------------+
| id | name | phone | profession | age | status | email |
+----+--------+-------------+------------+------+--------+------------+
| 1 | 张飞 | 15210231227 | 美术 | 23 | 1 | 123@qq.com |
+----+--------+-------------+------------+------+--------+------------+
1 row in set (0.00 sec)
-- age使用了大于号>，只有profession和age用到了索引
explain select * from tb_user where profession = '美术' and age > 22 and status = 1;
+----+-------------+---------+------------+-------+--------------------------------+--------------------------------+---------+------+------+----------+-----------------------+
| id | select_type | table | partitions | type | possible_keys | key | key_len | ref | rows | filtered | Extra |
+----+-------------+---------+------------+-------+--------------------------------+--------------------------------+---------+------+------+----------+-----------------------+
| 1 | SIMPLE | tb_user | NULL | range | idx_user_profession_age_status | idx_user_profession_age_status | 48 | NULL | 1 | 25.00 | Using index condition |
+----+-------------+---------+------------+-------+--------------------------------+--------------------------------+---------+------+------+----------+-----------------------+
1 row in set, 1 warning (0.01 sec)
-- 三个字段都用到了索引
explain select * from tb_user where profession = '美术' and age >= 22 and status = 1;
+----+-------------+---------+------------+-------+--------------------------------+--------------------------------+---------+------+------+----------+-----------------------+
| id | select_type | table | partitions | type | possible_keys | key | key_len | ref | rows | filtered | Extra |
+----+-------------+---------+------------+-------+--------------------------------+--------------------------------+---------+------+------+----------+-----------------------+
| 1 | SIMPLE | tb_user | NULL | range | idx_user_profession_age_status | idx_user_profession_age_status | 53 | NULL | 1 | 25.00 | Using index condition |
+----+-------------+---------+------------+-------+--------------------------------+--------------------------------+---------+------+------+----------+-----------------------+
1 row in set, 1 warning (0.00 sec)
```
## 7、索引失效的场景
### 7.1、索引列运算
不要在索引列上进行运算操作，否则索引将失效
```sql
-- 查看数据
mysql> select * from tb_user;
+----+--------+-------------+------------+------+--------+-------------+
| id | name | phone | profession | age | status | email |
+----+--------+-------------+------------+------+--------+-------------+
| 1 | 张飞 | 15210231227 | 美术 | 23 | 1 | 123@qq.com |
| 2 | 关羽 | 15210231297 | 物理 | 24 | 1 | 3339@qq.com |
| 3 | 刘备 | 15214231297 | 数学 | 25 | 0 | 666@qq.com |
| 4 | 孙权 | 15215231297 | 语文 | 20 | 1 | 111@qq.com |
+----+--------+-------------+------------+------+--------+-------------+
4 rows in set (0.00 sec)
-- 查看索引
mysql> show index from tb_user;
+---------+------------+--------------------------------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+---------------+---------+------------+
| Table | Non_unique | Key_name | Seq_in_index | Column_name | Collation | Cardinality | Sub_part | Packed | Null | Index_type | Comment | Index_comment | Visible | Expression |
+---------+------------+--------------------------------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+---------------+---------+------------+
| tb_user | 0 | PRIMARY | 1 | id | A | 4 | NULL | NULL | | BTREE | | | YES | NULL |
| tb_user | 0 | idx_user_phone | 1 | phone | A | 4 | NULL | NULL | YES | BTREE | | | YES | NULL |
| tb_user | 1 | idx_user_name | 1 | name | A | 4 | NULL | NULL | YES | BTREE | | | YES | NULL |
| tb_user | 1 | idx_user_profession_age_status | 1 | profession | A | 4 | NULL | NULL | YES | BTREE | | | YES | NULL |
| tb_user | 1 | idx_user_profession_age_status | 2 | age | A | 4 | NULL | NULL | YES | BTREE | | | YES | NULL |
| tb_user | 1 | idx_user_profession_age_status | 3 | status | A | 4 | NULL | NULL | YES | BTREE | | | YES | NULL |
| tb_user | 1 | idx_user_email | 1 | email | A | 4 | NULL | NULL | YES | BTREE | | | YES | NULL |
+---------+------------+--------------------------------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+---------------+---------+------------+
7 rows in set (0.01 sec)
-- 按照手机号查询数据
mysql> select * from tb_user where phone = '15210231227';
+----+--------+-------------+------------+------+--------+------------+
| id | name | phone | profession | age | status | email |
+----+--------+-------------+------------+------+--------+------------+
| 1 | 张飞 | 15210231227 | 美术 | 23 | 1 | 123@qq.com |
+----+--------+-------------+------------+------+--------+------------+
1 row in set (0.00 sec)
-- 分析索引使用情况
explain select * from tb_user where phone = '15210231227';
+----+-------------+---------+------------+-------+----------------+----------------+---------+-------+------+----------+-------+
| id | select_type | table | partitions | type | possible_keys | key | key_len | ref | rows | filtered | Extra |
+----+-------------+---------+------------+-------+----------------+----------------+---------+-------+------+----------+-------+
| 1 | SIMPLE | tb_user | NULL | const | idx_user_phone | idx_user_phone | 47 | const | 1 | 100.00 | NULL |
+----+-------------+---------+------------+-------+----------------+----------------+---------+-------+------+----------+-------+
1 row in set, 1 warning (0.00 sec)
-- 查询手机号后两位
select * from tb_user where substring(phone, 10, 2) = '27';
+----+--------+-------------+------------+------+--------+------------+
| id | name | phone | profession | age | status | email |
+----+--------+-------------+------------+------+--------+------------+
| 1 | 张飞 | 15210231227 | 美术 | 23 | 1 | 123@qq.com |
+----+--------+-------------+------------+------+--------+------------+
1 row in set (0.00 sec)
-- 查看执行效率
explain select * from tb_user where substring(phone, 10, 2) = '27';
+----+-------------+---------+------------+------+---------------+------+---------+------+------+----------+-------------+
| id | select_type | table | partitions | type | possible_keys | key | key_len | ref | rows | filtered | Extra |
+----+-------------+---------+------------+------+---------------+------+---------+------+------+----------+-------------+
| 1 | SIMPLE | tb_user | NULL | ALL | NULL | NULL | NULL | NULL | 4 | 100.00 | Using where |
+----+-------------+---------+------------+------+---------------+------+---------+------+------+----------+-------------+
1 row in set, 1 warning (0.01 sec)
```
### 7.2、字符串不加引号
字符串类型字段使用时，不加引号，索引将失效
```sql
-- 字符串查询可以不加引号
select * from tb_user where phone = 15210231227;
+----+--------+-------------+------------+------+--------+------------+
| id | name | phone | profession | age | status | email |
+----+--------+-------------+------------+------+--------+------------+
| 1 | 张飞 | 15210231227 | 美术 | 23 | 1 | 123@qq.com |
+----+--------+-------------+------------+------+--------+------------+
1 row in set (0.00 sec)
-- 不加引号的字符串查询没有走索引
explain select * from tb_user where phone = 15210231227;
+----+-------------+---------+------------+------+----------------+------+---------+------+------+----------+-------------+
| id | select_type | table | partitions | type | possible_keys | key | key_len | ref | rows | filtered | Extra |
+----+-------------+---------+------------+------+----------------+------+---------+------+------+----------+-------------+
| 1 | SIMPLE | tb_user | NULL | ALL | idx_user_phone | NULL | NULL | NULL | 4 | 25.00 | Using where |
+----+-------------+---------+------------+------+----------------+------+---------+------+------+----------+-------------+
1 row in set, 3 warnings (0.00 sec)
```
### 7.3、模糊查询
- 如果仅仅是尾部模糊匹配，索引不会失效；
- 如果是头部模糊匹配，索引失效
```sql
-- 尾部模糊查询
select * from tb_user where profession like '美%';
+----+--------+-------------+------------+------+--------+------------+
| id | name | phone | profession | age | status | email |
+----+--------+-------------+------------+------+--------+------------+
| 1 | 张飞 | 15210231227 | 美术 | 23 | 1 | 123@qq.com |
+----+--------+-------------+------------+------+--------+------------+
1 row in set (0.00 sec)
-- 尾部模糊匹配，索引不会失效；
explain select * from tb_user where profession like '美%';
+----+-------------+---------+------------+-------+--------------------------------+--------------------------------+---------+------+------+----------+-----------------------+
| id | select_type | table | partitions | type | possible_keys | key | key_len | ref | rows | filtered | Extra |
+----+-------------+---------+------------+-------+--------------------------------+--------------------------------+---------+------+------+----------+-----------------------+
| 1 | SIMPLE | tb_user | NULL | range | idx_user_profession_age_status | idx_user_profession_age_status | 43 | NULL | 1 | 100.00 | Using index condition |
+----+-------------+---------+------------+-------+--------------------------------+--------------------------------+---------+------+------+----------+-----------------------+
1 row in set, 1 warning (0.00 sec)
-- 头部模糊匹配，索引失效
explain select * from tb_user where profession like '%术';
+----+-------------+---------+------------+------+---------------+------+---------+------+------+----------+-------------+
| id | select_type | table | partitions | type | possible_keys | key | key_len | ref | rows | filtered | Extra |
+----+-------------+---------+------------+------+---------------+------+---------+------+------+----------+-------------+
| 1 | SIMPLE | tb_user | NULL | ALL | NULL | NULL | NULL | NULL | 4 | 25.00 | Using where |
+----+-------------+---------+------------+------+---------------+------+---------+------+------+----------+-------------+
1 row in set, 1 warning (0.01 sec)
```
blog/php-mysql/index.md
浏览文件 @ 34ec7ab9
......@@ -60,7 +60,7 @@
[流程结构 if while](blog/php-mysql/sql-if-while.md)
[函数 function](blog/php-mysql/sql-function.md)
[内置函数和自定义函数 function](blog/php-mysql/sql-function.md)
[存储过程 procedure](blog/php-mysql/sql-procedure.md)
......
blog/php-mysql/sql-function.md
浏览文件 @ 34ec7ab9
# 函数 function
# 内置函数和自定义函数 function
函数分为两类：系统函数和自定义函数
......@@ -19,9 +19,12 @@ length | 判断字符串的字节数,与字符集有关
concat | 连接字符串
insrt | 检查字符是否在目标字符串中，存在返回其位置，不存在返回 0
lcase | 全部小写
left | 左侧开始截取字符串，直到指定位置
ltrim | 消除左边的空格
left(str, length) | 左侧开始截取字符串，直到指定位置
right(str, length) | 右侧开始截取字符串，直到指定位置
mid | 从中间指定位置开始截取，如果不指定截取长度，直接到最后
`substring(str, index, [length]`) | 从指定位置开始，指定截取长度
substring_index(str, delim, count) | 按照关键字截取
示例
......@@ -39,9 +42,15 @@ select instr('你好中国', '我'); // 0
select lcase('aBcd'); // abcd
select left('aBcd', 2); // aB
select right('abcdef', 2); // ef
select substring('abcdef', 2, 3); // bcd
select substring('abcdef', -2, 3); // ef
select ltrim(' abc d '); // abc d
select mid('你好中国', 3); // 中国
select substring_index('www.baidu.com', '.', 2); // www.baidu
select substring_index('www.baidu.com', '.', -2); // baidu.com
```
### 1.2、时间函数
......
index.html
浏览文件 @ 34ec7ab9
......@@ -18,6 +18,15 @@
href="static/js/vue@4.12.2.min.css">
<style>
:root {
--toc-width: 300px;
}
/* 左侧导航 */
.sidebar {
width: 220px;
}
/* 更新时间 */
.last-update-time-wrap {
padding: 20px 0;
......@@ -33,7 +42,29 @@
/* 右侧目录 */
.page_toc {
margin-top: 20px;
max-height: calc(100vh - 100px);
overflow-y: auto;
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width: 4px
}
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background: 0 0;
border-radius: 4px
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background: hsla(0, 0%, 53.3%, .4)
}
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background: hsla(0, 0%, 53.3%, .1)
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......@@ -85,12 +116,16 @@
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<script src="static/js/prism-json@1.26.0.min.js"></script>
<script src="static/js/search@4.12.2.min.js"></script>
<script src="static/js/docsify-copy-code@2.1.1.min.js"></script>
<script src="static/js/time-updater@1.min.js"></script>
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<link rel="stylesheet"
href="static/js/toc.css">
<script src="static/js/toc.js"></script>
......
static/js/prism-python.min.js 0 → 100644
浏览文件 @ 34ec7ab9
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\ No newline at end of file
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