[Python] 第一次實作筆記

• 寫檔

f = file( 'filename.txt' , 'w')
f.write('gy5566')
f.close()

• 讀檔

f = file( 'filename.txt' )  # 預設是 r
data = ''
while True :
     line = f.readline()
     if( len( line ) == 0 ) :
         break
     data += line
f.close()

• 取得日期

import time
time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(time.time()) )

• regular expression

import re
pattern = 'your regular expression'
process = re.compile( pattern , re.DOTALL )  # like '{}s'

# preg_match_all( $pattern , $page_content , $match_data );
match_data = process.findall( page_content )

# preg_replace
new_data = process.sub( 'new' , 'src_data' )

• file_get_contents

import urllib
def file_get_contents( URL ) :
    fh = urllib.urlopen( URL )
    page_contents = ''
    for tmp in fh :
        page_contents += tmp
    return page_contents

• mail

import smtplib
http://www.eskimo.com/~jet/python/examples/mail/smtp1.html