第3个python程序：数字和数学计算

[root@mysql1 pshell]# cat ex3.py 

#!/usr/bin/env Python

#-*-coding:utf-8-*-

print "i will now count my chickens:"

print "hens", 25 + 30 / 6

print "roosters", 100 - 25 * 3 % 4

print "now i will count the eggs:"

print 3 + 2 + 1 - 5 + 4 % 2 - 1 / 4 + 6

print "is it true that 3 + 2 < 5 - 7?"

print 3 + 2 < 5 - 7

print "what is 3 + 2?", 3 + 2

print "what is 5 - 7?", 5 - 7

print "oh,that's why it's false."

print "how about some more."

print "is it greater?", 5 > -2

print "is it greate or equal?", 5 >= -2

print "is it less or equal?", 5 <= -2

[root@mysql1 pshell]# python ex3.py 

i will now count my chickens:

hens 30

roosters 97

now i will count the eggs:

7

is it true that 3 + 2 < 5 - 7?

False

what is 3 + 2? 5

what is 5 - 7? -2

oh,that's why it's false.

how about some more.

is it greater? True

is it greate or equal? True

is it less or equal? False