def contract_str():

index = 8

db_size = 8

new_table_name = 'b''_'+str(index & (db_size-1))

print new_table_name

ImportError: No module named mysql.connector

import mysql.connector as sql_connector

Python儲存時提示“SyntaxError: Non-ASCII character '\xe8' in file”

# -*- coding: utf-8 -*-

IOError: [Errno 21] Is a directory: 'logs/a/a'

沒有指定檔案或目錄名稱

logging自定義

https://cloud.tencent.com/developer/article/1354396

判斷檔案是否存在的方法

https://www.cnblogs.com/jhao/p/7243043.html

python獲取同級資料夾名

os.path.join(os.path.dirname(os.getcwd()), dir_path)

python 中的迴圈

for a in rang(10):

python 中join的用法

https://www.cnblogs.com/jsplyy/p/5634640.html

python 中數字轉字串

https://www.cnblogs.com/stuqx/p/7291