赢得比赛后如何结束循环？

Question

在制定了如何检查猜测是否正确的功能后,我很难说出我想要的东西.

ntries = 0
while ntries < 10:
    ntries +=1
    if test_guess(code,guess)==True:
        print 'You win! You guessed the code in',ntries,'tries.'
    elif test_guess(code,guess)==False:
        guess = str(raw_input('Your guess: '))
print 'You lose!'

问题是,当玩家成功猜测代码时,例如8次尝试,打印的结果是:

> You win! You guessed the code in 8 tries. 
> You win! You guessed the code in 9 tries. 
> You win! You guessed the code in 10 tries.
> You lose!

我意识到这是因为while循环表明当ntries仍然小于10时循环继续运行.我如何才能使它只打印赢得的尝试次数并停在那里？

Answer 1

使用语句中的break关键字打破循环if.

除此之外:你的if-elif区块过于冗长.因为test_guess要回归一些事情,你可以这样重写它.这也会将ntries变量移动到else条件中,因为只有在您实际猜到的情况下增加它才有意义,但是失败了.

if test_guess(code, guess):
    print 'You win!  You guess the code in', ntries, 'tries.'
    break
else:
    ntries += 1
    guess = str(raw_input('Your guess: '))