#!/usr/bin/env python
# -*- coding: utf-8 -*-

a = 100
if a >= 0:
    print a
else:
    print -a

print "-------------- py type -----------------"
# unused iformation
# type:
# int
# float
# -----------------------------------------------
# string
print r'\\\\'

print '''hello
world
aaa'''

# -----------------------------------------------
# bool 
print True and True
print False or True
print not False

# -----------------------------------------------
# None
a = None

print "-------------- py encode ---------------"
print ord('A')
print chr(65)
print len('aaa')
print u'中文'

print "-------------- py format ---------------"
# same as c

