为什么这段代码会给我错误?

时间:2013-12-25 08:42:17

标签: python

def rpsls(name): 
    '''
(string) -> string
This  function find and print Player choice by 
name and computer choise by random number and
who wins according to scope.if player enter wrong
number return  error message

'''





# convert name to player_number using name_to_number
player_number = name_to_number(name)

# compute random guess for comp_number using random.randrange()
comp_number = random.randrange(0,5)

# compute difference of player_number and comp_number modulo five
compute_difference = (player_number - comp_number) % 5

# use if/elif/else to determine winner
if compute_difference > 2:
    winner = "computer wins"
elif compute_difference == '':
    winner = ''
elif compute_difference == 0:
    winner = 'player and computer tie!'
else:
    winner = "player wins"
# convert comp_number to name using number_to_name
comp_name = number_to_name(comp_number)
# print results
if winner == '':
    print "try again"
else:
    print ''
    print 'Player chooses '+ name
    print 'computer chooses '+ comp_name
    print winner

我不知道为什么但这段代码不起作用。它说这是问题所在。为了清楚,我想要它。请帮助我。这是一项任务。但它已经结束了,我还没完成它

1 个答案:

答案 0 :(得分:1)

在这里你回答整个程序:
Rock-paper-scissors-lizard-Spock模板
import random

这个程序的关键思想是将字符串等同于  “摇滚”,“纸”,“剪刀”,“蜥蜴”,“斯波克”号  如下:

0 - 摇滚  1 - Spock
 2 - 纸
 3 - 蜥蜴
4 - 剪刀

辅助功能

def number_to_name(number):
# fill in your code below

# convert number to a name using if/elif/else
# don't forget to return the result!
    if number == 0:
        return 'rock'
    elif number == 1:
        return 'Spock'
    elif number == 2:
        return 'paper'
    elif number == 3:
        return 'lizard'
    elif number == 4:
        return 'scissors'


def name_to_number(name):
# fill in your code below

# convert name to number using if/elif/else
# don't forget to return the result!
    if name == 'rock':
        return 0
    elif name == 'Spock':
        return 1
    elif name == 'paper':
        return 2
    elif name == 'lizard':
        return 3
    elif name == 'scissors':
        return 4

def rpsls(name):
# fill in your code below

# convert name to player_number using name_to_number
    player_number = name_to_number(name)
# compute random guess for comp_number using random.randrange()
    comp_number = random.randrange(5)
# compute difference of player_number and comp_number modulo five
    difference = (player_number - comp_number) % 5
# use if/elif/else to determine winner
    if difference in [1, 2]:
        winmsg = "Player wins!"
    elif difference == 0:
        winmsg = "Player and computer tie!"
    else:
        winmsg = "Computer wins!"
# convert comp_number to name using number_to_name
    comp_name = number_to_name(comp_number)
# print results
    print " "
    print "Player chooses " + str(name)
    print "Computer chooses " + str(comp_name)
    print winmsg

测试你的代码

rpsls("rock")
rpsls("Spock")
rpsls("paper")
rpsls("lizard")