用于mysql的Python create dynamic select语句

import mysql.connector

# 连接到MySQL数据库
cnx = mysql.connector.connect(user='username', password='password',
                              host='localhost', database='database_name')

# 创建游标对象
cursor = cnx.cursor()

# 定义基本的SELECT语句
query = "SELECT * FROM table_name"

# 根据条件动态添加WHERE子句
condition = input("请输入条件：")
if condition:
    query += " WHERE column_name = %s"

# 执行查询
if condition:
    cursor.execute(query, (condition,))
else:
    cursor.execute(query)

# 获取查询结果
result = cursor.fetchall()

# 处理查询结果
for row in result:
    print(row)

# 关闭游标和数据库连接
cursor.close()
cnx.close()