标签：对象 person 建立 print username 学习 exec orm charset
学习一下python，这里对python的基础知识做一个整理。似等了一百年忽而明白，即使再见面，成熟地表演，不如不见。
word = "{0} love {1}" wordList = (‘huhx‘, ‘linux‘) print(word.format(*wordList)) print(word.format(‘huhx‘, ‘linux‘)) str_word = "{name} love {lover}" wordMap = dict(name=‘huhx‘, lover=‘linux‘) print(str_word.format(name=‘huhx‘, lover=‘linux‘)) print(str_word.format(**wordMap)) print(str_word.format_map(wordMap))
打印结果都是：huhx love linux
import re data = ‘Thu Feb 15 17:46:04 2007::uzifzf@dpyivihw.gov::1171590364-6-8‘ print(re.search(‘\d+-\d+-\d+‘, data).group()) # 1171590364-6-8 print(re.match(‘.+\d+-\d+-\d+‘, data).group()) # Thu Feb 15 17:46:04 2007::uzifzf@dpyivihw.gov::1171590364-6-8 print(re.match(‘.+(\d+-\d+-\d+)‘, data).group(1)) # 4-6-8 print(re.match(‘.+?(\d+-\d+-\d+)‘, data).group(1)) # 1171590364-6-8
import http.client import json conn = http.client.HTTPConnection("hostname") data = { ‘TellerId‘: ‘***‘, ‘Password‘: ‘***‘ } payload = json.dumps(data) headers = { ‘content-type‘: "application/json" } conn.request("POST", "/mweb/login.do", payload, headers) res = conn.getresponse() data = res.read() print(data.decode("utf-8"))
首先可以通过：pip install pymysql安装pymysql。
import pymysql db = pymysql.connect("localhost","root","pass","database", charset=‘utf8‘) cur = db.cursor() cur.execute(‘select * from puser‘) for i in cur.fetchall(): print(str(i)) db.close()
首先可以通过：pip install paramiko安装sftp的支持
import paramiko host = ‘hostname‘ port = 22 user = ‘root‘ passwd = ‘password‘ # 创建SSH对象 ssh = paramiko.SSHClient() # 允许连接不在know_hosts文件中的主机 ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy()) # 连接服务器 ssh.connect(hostname=host, port=port, username=user, password=passwd) # 执行命令 stdin, stdout, stderr = ssh.exec_command(‘ls -al‘) # 获取命令结果 result = stdout.read() print(result) # 关闭连接 ssh.close()
首先启动redis服务，然后下载python的redis包：pip install redis。
import redis r = redis.Redis(host=‘127.0.0.1‘,port=6379) r.set(‘name‘, ‘linux‘) print(r.get(‘name‘)) # linux
from xml.dom.minidom import parse import xml.dom.minidom DOMTree = xml.dom.minidom.parse("huhx.xml") collection = DOMTree.documentElement persons = collection.getElementsByTagName(‘person‘) for person in persons: if person.hasAttribute(‘name‘): print(‘my name is %s: ‘ % person.getAttribute(‘name‘)) age = person.getElementsByTagName(‘age‘)[0].childNodes[0].data address = person.getElementsByTagName(‘address‘)[0].childNodes[0].data print(‘age = %d, address = %s.‘ % (int(age), address))
测试的huhx.xml文件如下：
<persons> <person name="huhx"> <age>12</age> <address>wuhan</address> </person> <person name="linux"> <age>1</age> <address>hubai</address> </person> </persons>
运行的结果如下：
my name is huhx: age = 12, address = wuhan. my name is linux: age = 1, address = hubai.
csv文件可以在excel表中建立数据，最后保存的时候存为csv格式的文件。
import csv csvFile = open(‘huhx.csv‘, ‘r‘) reader = csv.reader(csvFile) for item in reader: for subItem in item: print(subItem, end=" ") print()
运行的结果如下：
姓名 年龄 地址 huhx 23 china linux 24 hubai liuling 21 wuhan
import csv fileHeader = [‘username‘, ‘age‘, ‘address‘] data1 = [‘huhx‘, 342, ‘hubai‘] data2 = [‘linux‘, 56, ‘wuhan‘] data3 = [‘tomhu‘, 44, ‘china‘] csvFile = open(‘huhx.csv‘, ‘a‘) writer = csv.writer(csvFile) # writer.writerow(fileHeader) # writer.writerow(data1) # writer.writerow(data2) # writer.writerow(data3) writer.writerows([fileHeader, data1, data2, data3]) csvFile.close()
标签：对象 person 建立 print username 学习 exec orm charset
原文地址：http://www.cnblogs.com/huhx/p/baseuselearnpython2.html
