錯誤的計數在輸出

Question

我做了一個簡單的猜謎遊戲的練習。該程序運行時沒有錯誤，但給出的輸出是錯誤的值。

下面是代碼：

import random 

welcome_phrase = "Hi there. What's your name?" 
print("{:s}".format(welcome_phrase)) 

user_name = input("Name: ") 
print("Hey {:s}, I am Crash. Let's play a game. I am thinking of a number between 1 and 20. Can you guess the number?".format(user_name)) 

attempts = 5 
secret_num = random.randint(1,20) 

for attempt in range (attempts): 
    guess = int(input("Guess the number: ")) 
    if guess > secret_num: 
     print("Your guess is higher than the number. Try again") 
    elif guess < secret_num: 
     print("Your guess is lower than the number. Try again.") 
    else: 
     print("Well done! {:d} is the right number.".format(guess)) 
     print("It took you {:d} attempts.".format(attempt)) 
     break 

if guess != secret_num: 
    print("Sorry, you have used up all your chances.") 
    print("The number was {:d}".format(secret_num)) 

這裏是輸出：

，你可以在上圖中看到，儘管很顯然，3次嘗試了爲了猜測正確的數字，Python只計算了2次嘗試。有誰會請讓我知道如何解決這個問題？

Answer 1

您可以更改

for attempt in range (attempts): 

到

for attempt in range (1,attempts+1): 

來解決這個問題，因爲範圍從0

Answer 2

while循環開始於一個break條款是許多猜測更清潔因爲它更可靠。

的for循環開始，除非指定在另一點開始在0開始計數，所以即使是在代碼運行3次計數器輸出會說其僅2（（0,1,2））

這是我爲創建一個數字猜測遊戲的基本版本，但其他功能（如額外的級別和提示）可以輕鬆完成，我很樂意提供幫助，如果您不瞭解下面的任何代碼，請告訴我。

例：

import random 

welcome_phrase = "Hi there. What's your name?" 
print("{:s}".format(welcome_phrase)) 

user_name = input("Name: ") 
print("Hey {:s}, I am Crash. Let's play a game. I am thinking of a number between 1 and 20. Can you guess the number?".format(user_name)) 

totalAttempts = 5 
secret_num = random.randint(1,20) 
usedAttempts=0 

while usedAttempts!=totalAttempts: #will run until they run out of attempts 
    guess=input("What is your guess? ") 
    if guess > secret_num: 
     print("Your guess is higher than the number. Try again") 
    elif guess < secret_num: 
     print("Your guess is lower than the number. Try again.") 
    elif guess==secret_num: #checks if they are right 
     print("Well done, You have guessed my number!") 
     print("It took you {:s} attempts".format(usedAttempts)) 
     wonGame=True 
     break #exits while loop 
    else: 
     print("Sorry that is not my number, you have lost a life. :(") 
     usedAttempts+=1 #adds 1 to the value of the used attempts 


if wonGame==True: 
    print("Sorry, you have used up all your chances.") 
    print("The number was {:d}".format(secret_num))