简单讲解Python中的数字类型及基本的数学计算

a = 2 
print a 

b = 123456789 
print b 

c = 3.2E2 
print c 

d = (2+3j) 
print d 

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

root@he-desktop:~/mystuff# 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 greatet or equal? True
is it less or equal? False

my_height_centimeter = my_height * 2.54 
my_weight_kilo = my_weight * 0.4536 
print "He's %d centimeters tall." % my_height_centimeter 
print "He's %d kilos heavy." % my_weight_kilo