python3 使用pymysql

 

 

#! /usr/bin/env python3
# coding = utf-8

import random
import pymysql


# 連接數據庫函數
def connDB(data):
    conn = pymysql.connect(host='localhost',user='root',passwd='#######',db='test',)  #數據庫
    cur = conn.cursor()   #游標
    cur.execute('create database if not exists test;')   #執語句行
    cur.execute('create table if not exists test1(id INT NOT NULL, num VARCHAR(40) );')
    for i in range(len(data)):
        cur.execute('insert into test1 (id,num) values("{0}","{1}");'.format(i,data[i]))   #{0} {1} 要和sql語句區分
    cur.close()  #關游標
    conn.commit()
    conn.close()  #關數據庫

# 產生激活碼
def make_number(num,length):
    lstr = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'
    a = []
    cnt = 0
    while cnt < num:
        a_str = ''
        for j in range(length):
            a_str += random.choice(lstr)
        if a_str not in a:
            a.append(a_str)
            cnt +=1
    return a


if __name__ == "__main__":
    nums = make_number(100,20)
    print(nums)
    connDB(nums)

 

錯誤處理：

pymysql.err.InternalError: (1054, "Unknown column 'K0F3hNCZUrXIA4wMEk6a' in 'field list'")

{0} {1} 要和sql語句區分，所以在該語句中用雙引號標注，其他格式化字符串（d%，s%等也應用引號區分）