from random import*
words = 'tiger lion wolf elephant zebra ducksheep rabbit mouse'.split()
 
#得到要猜的神秘单词
def getWord(wordList):
 n = randint(0,len(wordList)-1)
 return wordList[n]
 
#游戏界面
def display(word,wrongLetters,rightLetters,chance):
 print('你还有{:n}次机会'.format(chance).center(40,'-'))
 print('已经猜错的字母:'+ wrongLetters)
 print()
 blanks = '_'*len(word)
 for i in range(len(word)):
  if word[i] in rightLetters:
   blanks = blanks[:i] + word[i] +blanks[i+1:]
 for i in blanks:
  print(i+' ',end='')
 print()
 print()
 
#从玩家的输入得到一个猜测的字母
def getLetter(alreadyGuessed):
 while True:
  print('请输入一个可能的字母:')
  guess = input()
  guess = guess.lower()
  if guess[0] in alreadyGuessed:
   print('你已经猜过这个字母了！')
  elif guess[0] not in 'qwertyuiopasdfghjklzxcvbnm':
   print('请输入一个英文字母！(a-z)')
  else:
   return guess[0]
  
#是否再玩一次
def playAgain():
 print('是否在玩一次？(y/n)')
 s = input()
 s = s.lower()
 if s[0] == 'y':
  return 1
 return 0
 
#游戏初始化
wrongLetters = ''
rightLetters = ''
word = getWord(words)
chance = 6 #初始为6次机会
done = False
 
while True:
 display(word,wrongLetters,rightLetters,chance)
 
 guess = getLetter(wrongLetters+rightLetters)
 
 if guess in word:
  rightLetters = rightLetters+ guess
  foundAll = True
  for i in range(len(word)):
   if word[i] not in rightLetters:
    foundAll = False
    break
  if foundAll:
   print('你真棒，这个单词就是'+ word +'，你赢了！')
   done = True
 else:
   wrongLetters = wrongLetters + guess
   chance = chance - 1
   if chance == 0:
    display(word,wrongLetters,rightLetters,chance)
    print("你已经没有机会了！你一共猜错了"+str(len((wrongLetters))+"次，猜对了"+str(len(rightLetters))+"次，正确的单词是："+ word)
    done = True
 if done:
  if playAgain():
   wrongLetters = ''
   rightletters = ''
   word = getWord(words)
   chance = 6 #初始为6次机会
   done = 0
  else:
   break

import random
WORDS = ("math","english","china","history")
right = 'Y'
print("欢迎参加猜单词游戏！")
 
while right=='Y' or right=='y':
  word=random.choice(WORDS)
  correct=word
  newword = ''
  while word:
    pos=random.randrange(len(word))
    newword+=word[pos]
    #将word单词下标为pos的字母去掉，取pos前面和后面的字母组成新的word
    word = word[:pos]+word[(pos+1):] #保证随机字母出现不会重复
  print("你要猜测的单词为：",newword)
  guess = input("请输入你的答案：")
  count=1
  while count<5:
    if guess!=correct:
      guess = input("输入的单词错误，请重新输入：")
      count+=1
    else :
      print("输入的单词正确，正确单词为：",correct)
      break
  if count == 5:
    print("您已猜错5次，正确的单词为：",correct)
 
  right = input("是否继续，Y/N：")