如何向mysql数据库中添加数据

import mysql.connector

# 连接到MySQL数据库
mydb = mysql.connector.connect(
  host="localhost",
  user="yourusername",
  password="yourpassword",
  database="yourdatabase"
)

# 创建一个游标对象
mycursor = mydb.cursor()

# 定义要插入的数据
sql = "INSERT INTO customers (name, address) VALUES (%s, %s)"
val = ("John", "Highway 21")

# 执行SQL语句
mycursor.execute(sql, val)

# 提交事务
mydb.commit()

print(mycursor.rowcount, "条记录已插入。")

sql = "INSERT INTO customers (id, name, address) VALUES (%s, %s, %s) ON DUPLICATE KEY UPDATE name=%s, address=%s"
val = (1, "John", "Highway 21", "John", "Highway 21")
mycursor.execute(sql, val)
mydb.commit()