Python学习记录

环境:Ubuntu14.04,内置python3.4,Eclipse pydev.

1.数据库操作

# official connector of mysql
import mysql.connector
# init connection begin
config = {'host':'127.0.0.1',
        'user':'root',
        'password':'123',
        'port':3306 ,
        'database':'test'
        }
conn = mysql.connector.connect(**config)
# init connection end

# get cursor begin
cur = conn.cursor()
# get cursor end

# insert begin
try:
    cur.execute("insert into tb01(id) values(2)")
    conn.commit()
except:
    conn.rollback()
    
sql_insert_user = ("insert into user(uid,pwd)"
                 "values(%s,%s)")    
user_data = ("leo", "123")  
  
try:
    cur.execute(sql_insert_user, user_data)
    conn.commit()
except:
    conn.rollback()      
    
    
# insert end

# select begin
cur.execute("select id from tb01")
# select end

# result set begin
rs = cur.fetchall()

for el in rs:
    print(el[0])
# result set end

# close resource begin    
cur.close()
conn.close()
# close resource end

2.Http连接

import httplib

conn = httplib.HTTPConnection("localhost")  #
conn.request("GET", "/index.html")  # send request
resp = conn.getresponse()  # get resp
print(resp.status, resp.reason, resp.read())  # read data

3.JSON

import json
user = {
'name':'leo',
'age':23
}
print(json.dumps(user))#obj to json
print(json.loads(json.dumps(user)))#json to obj

4.Date format

print datetime.now().strftime("%Y-%m-%d %H:%M:%S") #yyyy-MM-dd HH:mm:ss

5.使用别的py文件的所有方法

from 其它py的名字 import *