python03 一些简单的数字运算

• + 加
  
• - 减
  
• / 除
  
• * 乘
  
• % 取模（取余数）
  
• < 小于
• > 大于
• <= 小于等于
• >=  大于等于

ex3.py

# -*- coding: utf-8 -*-print "下面是简单的四则运算".decode('utf-8').encode('gb18030')print "25 + 30 / 6 = ", 25 + 30 / 6print "100 - 25 * 3 % 4 = ", 100 - 25 * 3 % 4print "再看一组复杂的:".decode('utf-8').encode('gb18030')print 7 + 8 + 9 - 6 + 5 % 4 - 3 / 4 + 2print "3 + 2 < 5 - 7为真？".decode('utf-8').encode('gb18030')print 3 + 2 < 5 - 7print "3 + 2 = ", 3 + 2print "5 - 7 = ", 5 - 7print "some more...."print "5大于2?".decode('utf-8').encode('gb18030'), 5 > -2print "5大于等于2?".decode('utf-8').encode('gb18030'), 5 >= -2print "5大于等于2?".decode('utf-8').encode('gb18030'), 5 <= -2

结果