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>>cat a.txt
a=1,befc
a=11,azxv
a=2,azvf
a=231,fffe
a=24,zefg
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a=1,befc
a=2,azvf
a=11,azxv
a=24,zefg
a=231,fffe
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Python code:
import re
file_a = open('a.txt')
pattern = re.compile('a=(\d+),(\w+)')
dict_1 = {}
for line in file_a:
s = pattern.match(line).group(1)
dict_1[int(s)] = line
list_1 = dict_1.keys()
list_1.sort()
for i in list_1:
print dict_1[i]
def my_cmp(a, b ):
a_value = int(a.lstrip('a=').split(',')[0])
b_value = int(b.lstrip('a=').split(',')[0])
return cmp(a_value, b_value)
lines = [ l.strip() for l in open('t.txt') if l.strip() ]
for l in sorted(lines, cmp = my_cmp):
print l
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http://code.activestate.com/recipes/576755/
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>>cat a.t
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#!/usr/bin/python
# Filename : helloworld.py
print 'Hello World'
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class A
{
public:
int val;
}
class B
{
public:
A a
}
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b.a.val = 1
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b.a = 1
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>>> x=-1
>>> if x>0:
print ('11')
>>> else:
SyntaxError: invalid syntax (<pyshell#20>, line 1)
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>>> x=int(input("Please ent ......