python概率计算器实例分析

from random import randrange#randrange form random moduledef calc_prob(strengths):  """A function that receives an array of two numbers   indicating the strength of each party   and returns the winner"""  if strengths[1]>strengths[0]:#Bring the bigger number to the first position in the array    temp=strengths[0]    strengths[0]=strengths[1]    strengths[1]=temp     prob1=abs(strengths[0]-strengths[1])#The relative strength of the 2 parties  prob2=randrange(0,100)#To calculate the luck that decides the outcome  if prob2 in range(0,33-prob1):#Check if the weaker party is capable of winning. #The condition gets narrower with the increase#in relative strengths of each parties    return strengths[1]  elif prob2 in range(33-prob1,66-prob1):  #The middle condition    return "Draw"  else:     return strengths[0]#Luck favors the stronger party and if relative strength#between the teams is too large, #the match ends up in favor of the stronger party #Examplecalc_prob([50,75]);#Always has to be a list to allow exchange#Can be programmed in hundreds of better ways. Good luck!