心得
- 使用 pymysql 模块操作 MySQL 数据库。(感觉比 MySQLDB 好用些,Python3 安装 MySQLDB 各种报错)
- pymysql 使用范例
- sql 语句很基础,很重要
代码
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
import pymysql.cursors
import uuid
def main():
conn = pymysql.connect(host='localhost',
user='root',
passwd='root',
db='show_me_the_code',
charset='utf8',
cursorclass=pymysql.cursors.DictCursor)
try:
with conn.cursor() as cursor:
init_table(cursor)
sql = "INSERT INTO `ActivationCode` (`code`) VALUES (%s)"
code_list = get_activation_code_list()
for code in code_list:
print(code)
cursor.execute(sql, (code,))
conn.commit()
finally:
conn.close()
def init_table(cursor):
# 如果数据表已经存在使用 execute() 方法删除表。
cursor.execute("DROP TABLE IF EXISTS ActivationCode")
# 创建数据表SQL语句
sql = """CREATE TABLE ActivationCode (
`id` INT NOT NULL AUTO_INCREMENT,
`code` VARCHAR(50) NOT NULL,
PRIMARY KEY(`id`)
)
"""
cursor.execute(sql)
def get_activation_code_list():
result = []
for i in range(200):
result.append(str(uuid.uuid4()))
return result
if __name__ == "__main__":
main()