I used python to encapsulate a class that implements MySQL database building, table creation, and addition, deletion, modification, and query operations.

I used python to encapsulate a class that implements MySQL database building, table creation, and addition, deletion, modification, and query operations.

Junior version:

class MySQLUtil:
    def __init__(self):
        self.conn = pymysql.Connection(
            host="localhost", # 主机名 IP地址
            user="root", # 账户
            password="888888", # 密码
            port=3306, # 端口
            )
        
p2 = MySQLUtil()
conn = p2.conn

# 选择
conn.select_db("testdb")

# 获取游标
cursor = conn.cursor()

# 变量
update_time = time.strftime("%Y-%m-%d %H:%M:%S", time.localtime())
table_name = 'test_table_update_time'

# sql语句
drop_sql= f"drop table if exists {
      
      table_name}"
create_sql = 'id bigint(20) primary key auto_increment,name varchar(20),age int,sex varchar(10), update_time varchar(50)'
create_table = f"Create Table {
      
      table_name}({
      
      create_sql})"
insert_sql = f"insert into {
      
      table_name}(name,age,sex,update_time)values('高启强',48,'男','{
      
      update_time}')"
query_sql = "select * from test_table_update_time"

# 执行建表语句
cursor.execute(drop_sql)
time.sleep(1)
cursor.execute(create_table) # 不需要commit
time.sleep(1)
cursor.execute(insert_sql)
time.sleep(1)
cursor.execute(query_sql)
time.sleep(1)

# 提交事务
conn.commit()

# 关闭游标
cursor.close()

# 关闭数据库连接
conn.close()

Advanced version:

import pymysql
import time

class MySQLUtil:
    def __init__(self):
        self.conn = pymysql.Connection(
            host="localhost", # 主机名 IP地址
            user="root", # 账户
            password="xxxxx", # 密码
            port=3306, # 端口
            # autocommit=True
            )


    def run(self):
        # 选择
        self.conn.select_db("testdb")        
        
        # 获取游标
        cursor = self.conn.cursor()      
        
        # 变量
        update_time = time.strftime("%Y-%m-%d %H:%M:%S", time.localtime())
        table_name = 'test_table_update_time'

        # sql语句
        drop_sql= f"drop table if exists {
      
      table_name}"
        create_sql = 'id bigint(20) primary key auto_increment,name varchar(20),age int,sex varchar(10), update_time datetime'
        create_table = f"Create Table {
      
      table_name}({
      
      create_sql})"
        insert_sql = f"insert into {
      
      table_name}(name,age,sex,update_time)values('高启强',48,'男','{
      
      update_time}')"
        query_sql = "select * from test_table_update_time"

        # 执行建表语句
        cursor.execute(drop_sql)
        time.sleep(0.1)
        cursor.execute(create_table) # 不需要commit
        time.sleep(0.1)
        cursor.execute(insert_sql)
        time.sleep(0.1)
        cursor.execute(query_sql)
        time.sleep(0.1)

        # 提交事务
        self.conn.commit()
        
        # 通过游标获取执行结果
        result = cursor.fetchall()

        # 关闭游标
        cursor.close()

        # 关闭数据库连接
        self.conn.close()


if __name__ == '__main__':
    MySQLUtil = MySQLUtil()
    MySQLUtil.run()