'''
下載並安裝MySQLdb模組
連結地址 https://www.lfd.uci.edu/~gohlke/pythonlibs/#mysqlclient
'''

我的環境是 python3.6 windows10 64位機器，所以下載(點選) 

• mysqlclient‑1.3.13‑cp36‑cp36m‑win_amd64.whl 這個檔案

下載完畢後，執行 pip install mysqlclient‑1.3.13‑cp36‑cp36m‑win_amd64.whl

下面就準備開始我們的封裝類

#-*- coding=utf-8 -*-
import MySQLdb
from MySQLdb import cursors
import random
class PMySQL():
    #初始化，連結資料庫並設定出字符集，並且獲取遊標
    def __init__(self):
        try:
            self.db = MySQLdb.connect('localhost','root','root','test',cursorclass=cursors.DictCursor,charset='utf8')
            
 
if self.db is not None:
                self.cursor = self.db.cursor()
        except Exception as e:
            self.cursor = ''

    #查詢方法
    def select(self,sql):
        data_list = []
        try:
            self.cursor.execute(sql)
            self.db.commit()
            data = self.cursor.fetchall()
            
 
if data is not None:
                for i in data:
                    data_list.append(i)
            return data_list
        except Exception as e:
            return data_list
    #插入方法
    def insert(self,sql):
        try:
            self.cursor.execute(sql)
            self.db.commit()
            return self.cursor.lastrowid
        except Exception as e:
            self.db.rollback()
            return 0

    #更新方法
    def update(self,sql):
        try:
            self.cursor.execute(sql)
            self.db.commit()
            return self.cursor.rowcount
        except Exception as e:
            self.db.rollback()
            return 0

    #刪除方法
    def delete(self,sql):
        try:
            self.cursor.execute(sql)
            self.db.commit()
            return self.cursor.rowcount()
        except Exception as e:
            self.db.rollback()
            return 0


if __name__ == '__main__':
    # 1 連結資料庫，並設定字符集
    # db = MySQLdb.connect('localhost','root','root','test',cursorclass=cursors.DictCursor,charset='utf8')
    # print(db)
    # 2 獲取遊標
    # cursor = db.cursor()
    # print(cursor)
    # 3 準備sql語句
    # sql = 'select CONTINENT,COUNTRY,CODE from nation limit 10'
    # sql = 'insert into user(`name`) values("zhangsan")'
    # sql = "update user set name='lisi' where id=4"
    # sql = "delete from user where id=4"
    # 4 執行
    # cursor.execute(sql)
    # 查詢
    # data = cursor.fetchall()
    #插入
    # db.commit()
    # print(data)
    # 5 處理資料
    # T = []
    # if data is not None:
    #     for i in data:
    #         T.append(i)
    # print(T)
    # print(cursor.rowcount)

    # 6 釋放資源，關閉連結
    # db.close()



    p = PMySQL()
    sql = "delete from user where id=4"
    data = p.delete(sql)
    print(data)