第24个python程序：更多练习

[root@mysql1 pshell]# cat ex24.py   

#!/usr/bin/env Python

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

print "let's practice everything."

print 'you\'d need to know \'bout escapes with \\ that do \n newline and \t tabs.'

poem="""

\tthe lovely world

with logic so frimly planted

cannot discern \n the needs of love

nor comprehend passion from intuition

and requires an explanation

\n\t\twhere there is none.

"""

print "-----------------"

print poem

print "-----------------"

five=10-2+3-6

print "this should be five: %s" % five

def secret_formula(started):

  jelly_beans=started*500

  jars=jelly_beans/1000

  crates=jars/100

  return jelly_beans,jars,crates

start_point=10000

beans,jars,crates=secret_formula(start_point)

print "with a starting point of: %d" % start_point

print "we'd have %d beans,%d jars,and %d crates." % (beans,jars,crates)

start_point=start_point/10

print "we can also do that this way:"

print "we'd have %d beans,%d jars,and %d crates." % secret_formula(start_point)

[root@mysql1 pshell]# 

[root@mysql1 pshell]# 

[root@mysql1 pshell]# 

[root@mysql1 pshell]# 

[root@mysql1 pshell]# 

[root@mysql1 pshell]# 

[root@mysql1 pshell]# 

[root@mysql1 pshell]# 

[root@mysql1 pshell]# 

[root@mysql1 pshell]# 

[root@mysql1 pshell]# python ex24.py

let's practice everything.

you'd need to know 'bout escapes with \ that do 

 newline and     tabs.

-----------------

        the lovely world

with logic so frimly planted

cannot discern 

 the needs of love

nor comprehend passion from intuition

and requires an explanation

                where there is none.

-----------------

this should be five: 5

with a starting point of: 10000

we'd have 5000000 beans,5000 jars,and 50 crates.

we can also do that this way:

we'd have 500000 beans,500 jars,and 5 crates.