#!/usr/bin/python
# encoding:utf-8

"""
@author:zhangyajing
contact:hebeizhangyajing@126.com
@file: ifdemo.py
@time:2016/7/31 20:55
"""
#空的列表、元组、字符串被默认为false,None也为false
x={'name':10}
if x>0:
    print 'a'
else:
    print 'b'