1. 匯入模組

import pymysql

2. 建立資料庫連線

# 創建於資料庫的連線
        db = pymysql.connect(
            host='localhost',
            user='root',
            password='123456',
            db='mybatis',
            port=3306,
            charset='utf8'
        )

3. 建立遊標

#建立遊標
        cur = db.cursor()

4. sql語句

#sql
        sql = "select * from orders;"

5. 執行sql語句

cur.execute(sql)

5.1 執行插入語句

 sql ="insert into orders(user_id,number,createtime) values (%s,%s,%s);"

        # 插入單條資料
        cur.execute(sql,values)

        # 插入多條資料
        cur.executemany(sql,values)

6. 獲取結果

res = cur.fetchall()
        
 
print(res)

具體例子：

# coding=utf8


import pymysql

sql2 = ""

def select_db():
    try:

        # 創建於資料庫的連線
        db = pymysql.connect(
            host='localhost',
            user='root',
            password='123456',
            db='mybatis',
            port=3306,
            charset='utf8'
        )
        
 
print("連線成功")
        #建立遊標
        cur = db.cursor()

        #sql
        sql = "select * from orders;"

        cur.execute(sql)

        res = cur.fetchall()
        print(res)

        return res
    except Exception as e:

        print(e)

    finally:
        cur.close()
        db.close()




def insert_db(values):

    try:

        # 創建於資料庫的連線
        db = pymysql.connect(
            host='localhost',
            user='root',
            password='123456',
            db='mybatis',
            port=3306,
            charset='utf8'
        )
        print("連線成功")
        #建立遊標
        cur = db.cursor()

        sql ="insert into orders(user_id,number,createtime) values (%s,%s,%s);"

        # 插入單條資料
        #cur.execute(sql,values)

        # 插入多條資料
        cur.executemany(sql,values)



        # 提交事務
        db.commit()

    except Exception as e:

        print(e)
        db.rollback()

    finally:
        db.close()
        cur.close()







# insert_db([(10,'11111','2015-02-04 13:22:35'),(10,'11111','2015-02-04 13:22:35'),(10,'11111','2015-02-04 13:22:35'),(10,'11111','2015-02-04 13:22:35'),])
result = select_db()

for res in result:

   id = res[0]
   u_id = res[1]
   num = res[2]
   c_time = res[3]
   note = res[4]
   print("id:",id,"u_id:",u_id,"num:",num,"c_time:",c_time,"note:",note)