#!/usr/bin/env python
# -*- encoding: utf-8 -*-
"""
Topic: sample
Desc :
"""
import sys, os
__author__ = 'Xiong Neng'
# def test_f(fmt, *args, exc_info, extra):
# return 2 if True else None
def aa():
for x in range(1, 10):
for y in range(1, x + 2):
yield '%d * %d = %d\t' % (y, x, x * y) if y <= x else '\n'
print('ddd')
b=1
def bb():
a=b+2
print(a)
if __name__ == '__main__':
a = 1
bb()