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tomstrs=re.findall(......)
mtxx=''
for tomstr in tomstrs:
  tomstr=tomstr.strip()
  if  tomstr:
      mtxx += tomstr
print mtxx 

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tomstrs=re.findall(......)
mtxx=''
for tomstr in tomstrs:
  tomstr=tomstr.strip()     
  if  tomstr:
      if tomstr.find("2") == 0 :  #½öÌí¼ÓÁËÕâÒ»ÐÐ
          mtxx += tomstr
print mtxx

#print³öÀ´µÄ½á¹ûÊÇÂÒÂë


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encode('gbk');
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d = {"a":"a","b":"b","c":"c"}
print d

ΪʲôÊä³öÊÇ:{'a': 'a', 'c': 'c', 'b': 'b'} ......

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#!/usr/bin/python
# Filename : helloworld.py
print 'Hello World'

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