擅长:python、mysql、java
<p>我喜欢这样的东西。</p>
<pre><code>
#!/usr/bin/python
import random
CAR = 1
GOAT = 0
def one_trial( doors, switch=False ):
"""One trial of the Monty Hall contest."""
random.shuffle( doors )
first_choice = doors.pop( )
if switch==False:
return first_choice
elif doors.__contains__(CAR):
return CAR
else:
return GOAT
def n_trials( switch=False, n=10 ):
"""Play the game N times and return some stats."""
wins = 0
for n in xrange(n):
doors = [CAR, GOAT, GOAT]
wins += one_trial( doors, switch=switch )
print "won:", wins, "lost:", (n-wins), "avg:", (float(wins)/float(n))
if __name__=="__main__":
import sys
n_trials( switch=eval(sys.argv[1]), n=int(sys.argv[2]) )
$ ./montyhall.py True 10000
won: 6744 lost: 3255 avg: 0.674467446745
</code></pre>