python编程导论 week4

problem set 4

总结：

• python2和python3的切换有点心累，如何在python3中一行print出2个操作数.....所以用anaconda切换成python2.7.13来做了
• anaconda切换python版本的教程https://www.cnblogs.com/wxshi/p/6805120.html
• 实现代码如下：（桉顺序），其中3,6两个逻辑有空再看看。

def getWordScore(word,n)
L = []
for i in word:
    L.append(SCRABBLE_LETTER_VALUES[i])
point = sum(L) * len(word)
if len(word) == n :
    point += 50
return point

def updateHand(hand, word):
    import  copy
    res=copy.deepcopy(hand)
    for letter in word:
        res[letter]-=1
        if res[letter]==0:
            del res[letter]
    return res

def isValidWord(word, hand, wordList):
    word = word.lower()
    cpyHand = hand.copy()
    for letter in word:

def calculateHandlen(hand):
    return sum(hand.values())

def playHand(hand, wordList, n):
    score = 0
    while calculateHandlen(hand) != 0: 
        print 'Current Hand:', displayHand(hand)
        word = str(raw_input('Enter word, or a "." to indicate that you are finished: '))
        if isValidWord(word, hand, wordList):
            score += getWordScore(word, n)
        if word == '.':
            print 'Goodbye! Total score:', score, 'points.'
            break
        else:
            if not isValidWord(word, hand, wordList):
                print 'Invalid word, please try again.'
                print
            else:
                print '"' + word + '" earned',  getWordScore(word, n), 'points. Total:', score, 'points'
                hand = updateHand(hand, word)
                print
    if calculateHandlen(hand) == 0:
        print 'Run out of letters. Total score:', score, 'points.'

def playGame(wordList):
hand = ''
#HAND_SIZE = 7
while 1:
    g = input('Enter n to deal a new hand, r to replay the last hand, or e to end game: ')
    if g == 'e':
        return
    if g == 'n':
        hand = dealHand(HAND_SIZE) #暂时设为7
        playHand(hand, wordList, HAND_SIZE)
    elif g == 'r' and hand != '':
        playHand(hand, wordList, HAND_SIZE)
    elif g == 'r':
        print('You have not played a hand yet. Please play a new hand first!')
    else:
         print('Invalid command.')
         g = 'n'

def compChooseWord(hand, wordList, n):
    CoWord={}
    BestWord=None
    for i in wordList:
        if True==isValidWord(i, hand, wordList):#
            CoWord[i]=getWordScore(i, n)
            BestWord=max(CoWord.items(), key=lambda x: x[1])[0]
    return BestWord

def compPlayHand(hand, wordList, n):
    handn, score, word = hand.copy(), 0, ''
    while word != None:
        word = compChooseWord(handn, wordList, n)
        print '\nCurrent Hand: ',
        displayHand(handn)
        if isValidWord(word, handn, wordList):
            score += getWordScore(word, n)
            print '"%s" earned %d points. Total: %d points.' % (word, getWordScore(word, n), score)
            handn = updateHand(handn, word)
            if calculateHandlen(handn) == 0:
                print ''
                break
    print 'Total score: %d points.' % (score)

def compChooseWord(hand, wordList, n):
    result = None
    score = 0
    for i in wordList:
        if len(i) <= n:
            if isValidWord(i, hand, wordList):
                score1 = getWordScore(i, n)
                if score1 > score:
                    score = score1
                    result = i
    return result

def playGame(wordList):
    oldhand = {}        
    while True:
        choose2 =''
        choose = raw_input('Enter n to deal a new hand, r to replay the last hand, or e to end game: ')
        if choose == 'e':
            break
        elif choose == 'n':
            hand = dealHand(HAND_SIZE)
            while choose2 not in ('u','c'):
                choose2 = raw_input('Enter u to have yourself play, c to have the computer play: ')
                oldhand = hand              
                if choose2 == 'u':  
                    playHand(hand, wordList, HAND_SIZE)
                elif choose2 =='c':
                    compPlayHand(hand, wordList, HAND_SIZE)
                else:
                    print "Invalid command\n"
        elif choose == 'r':
            if oldhand =={}:
                print "You have not played a hand yet. Please play a new hand first!\n"
            else:
                while choose2 not in ('u','c'):
                    choose2 = raw_input('Enter u to have yourself play, c to have the computer play: ')             
                    if choose2 == 'u':  
                        playHand(oldhand, wordList, HAND_SIZE)
                    elif choose2 =='c':
                        compPlayHand(oldhand, wordList, HAND_SIZE)
                    else:
                        print "Invalid command\n"
        else:
            print "Invalid command\n"

期中考试
//b和x搞混

def myLog(x, b):
    '''
    x: a positive integer
    b: a positive integer; b >= 2

    returns: log_b(x), or, the logarithm of x relative to a base b.
    '''
    # Your Code Here
    count = 0
    while b<=x:
        x = x/b
        count+=1
    return count

print myLog(16,2)