前言

這個(gè)程序的算法部分是Bill James 博士的’Safe lead calculator’

網(wǎng)址：http://www.slate.com/articles/sports/sports_nut/2008/03/the_lead_is_safe.html

這里有一個(gè)基于swf的計(jì)算器的實(shí)現(xiàn)http://img.slate.com/media/53/LeadCalc2.swf

程序

這里我全部略過算法的說明部分，直接上程序了。

#Bill James 'Safe lead calculator'

#from http://www.slate.com/id/2185975/

#take the number of points one team ahead

pointsStr=raw_input("Enter the number of the lead in the play: \n")

pointsInt=int(pointsStr)

#subtract threee

points=pointsInt-3

#add a half-point or not

#depenf the ball is has or not

has_ball=raw_input("Does the lead team has the ball or not(Yes or No): \n")

if has_ball == 'Yes':

points=points+0.5

else:

points=points-0.5

if points < 0:

points=0

#square the points to get the conclusion

points=points **2

#to judge the condition whether we should judge there should the

#time that left

seconds=int(raw_input("Enter the number of seconds remaining: \n"))

if points > seconds:

print "Lead is safe!"

else:

print "Lead is not safe!"

總結(jié)

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