如何重新开始一个简单的掷币游戏

Question

我正在使用 Python 2.6.6

我只是想根据用户的输入从头开始重新启动程序。谢谢

import random
import time
print "You may press q to quit at any time"
print "You have an amount chances"
guess = 5
while True:
    chance = random.choice(['heads','tails'])
    person = raw_input(" heads or tails: ")
    print "*You have fliped the coin"
    time.sleep(1)
    if person == 'q':
         print " Nooo!"
    if person == 'q':
        break   
    if person == chance:
        print "correct"
    elif person != chance:
        print "Incorrect"
        guess -=1
    if guess == 0:
        a = raw_input(" Play again? ")
        if a == 'n':
            break
        if a == 'y':
            continue

#Figure out how to restart program

我对 continue 这个语句有点困惑。因为如果我使用了 continue，第一次输入 'y' 后就再也没有“再玩一次”的选项了。

Answer 1

你需要用 random.seed 来初始化随机数生成器。如果每次都用相同的值来调用它，那么从 random.choice 得到的值就会重复。

Answer 2

我建议：

1. 把你的代码分成几个函数，这样看起来会更清晰。
2. 使用有帮助的变量名称，让人一看就知道它们的作用。
3. 不要把常量用掉（第一次运行代码后，你怎么知道要从多少次猜测开始呢？）

.

import random
import time

GUESSES = 5

def playGame():
    remaining = GUESSES
    correct = 0

    while remaining>0:
        hiddenValue = random.choice(('heads','tails'))
        person = raw_input('Heads or Tails?').lower()

        if person in ('q','quit','e','exit','bye'):
            print('Quitter!')
            break
        elif hiddenValue=='heads' and person in ('h','head','heads'):
            print('Correct!')
            correct += 1
        elif hiddenValue=='tails' and person in ('t','tail','tails'):
            print('Correct!')
            correct += 1
        else:
            print('Nope, sorry...')
            remaining -= 1

    print('You got {0} correct (out of {1})\n'.format(correct, correct+GUESSES-remaining))

def main():
    print("You may press q to quit at any time")
    print("You have {0} chances".format(GUESSES))

    while True:
        playGame()
        again = raw_input('Play again? (Y/n)').lower()
        if again in ('n','no','q','quit','e','exit','bye'):
            break

Answer 3

在你想要重新开始循环的地方使用 continue 语句。就像你用 break 来退出循环一样，continue 语句会让循环重新开始。

虽然这不是针对你的问题，但我来讲讲怎么使用 continue：

while True: 
        choice = raw_input('What do you want? ')
        if choice == 'restart':
                continue
        else:
                break

print 'Break!' 

还有：

choice = 'restart';

while choice == 'restart': 
        choice = raw_input('What do you want? ')

print 'Break!' 

输出 :

What do you want? restart
What do you want? break
Break!