python基础

Posted 2021-02-07 萌萌~哒

一、token加盐处理
# import itsdangerous
#
# salt=‘sdf234^#[email protected]‘
# t = itsdangerous.TimedJSONWebSignatureSerializer(salt,expires_in=30)
# # res = t.dumps({‘username‘:‘yangfan‘,‘user_id‘:1})
# # token = res.decode()
# # print(token)
# s=‘eyJhbGciOiJIUzI1NiIsImlhdCI6MTU0MTgyMDA1NiwiZXhwIjoxNTQxODIwMDg2fQ.eyJ1c2VybmFtZSI6InlhbmdmYW4iLCJ1c2VyX2lkIjoxfQ.FUfs92HuVKrt61AKpMjv1Iye8QDP7XUGOfgcrSusMv8‘
# res = t.loads(s)
# print(res)

import pymysql
coon = pymysql.connect()
cur= coon.cursor()
# sqls = [‘sleect‘,‘uodate‘,‘delet‘,‘insert‘]
# for i in sqls:
#     cur.execute(i)

二、sys.argv的用法

import flask
import sys
import time
server = flask.Flask(__name__)

@server.route(‘/‘)
def index():
    return ‘<h1>success</h1>‘
if len(sys.argv)>1:
    port = sys.argv[1]
    if port.isdigit():
        server.run(port=port)
    elif port==‘--help‘:
        print(‘这个python文件的作用是让你发财！‘)
    elif port==‘--time‘:
        print(time.strftime(‘%Y-%m-%d %H:%M:%S‘))
    else:
        print(‘端口号必须是整数！‘)
else:
    print(‘运行错误！请在运行的时候指定端口号
‘
          ‘请按照下面的方式运行python文件！
‘
          ‘python mock_server.py 8989‘)




#sys.argv的作用是获取到运行python文件时，传入的参数
# python xxx.py --help
# 默认如果运行python文件的时候，不传参数，argv里面只有一个元素
#就是当前这个python文件的文件名
# python  xxx.py

三、glob模块的用法

import os,glob
# print(os.listdir())
# for f in os.listdir():
#     if f.endswith(‘.py‘):
#         os.remove(f)
print(glob.glob(‘*‘)