d1a = input ("Do you want to: A) Approach the house. B) Approach the stable. [A/B]? : ")
if d1a == "A":
print ("You approach the cottage.")
elif d1a == "B":
print ("You approach the stables.")
else
我才刚刚开始学习python，这是我的第一门语言，所以我只是在玩它。else 语句是否可以再次请求输入，并在既不输入 A 也不输入 B 时将其保存为同一变量？
编辑：
import time
import random
import sys
print ("You wake up to find yourself in a clearing off a forest, sounded by tall")
print (" trees on all sides with a path ahead of you")
d1 = input ("Do you want to : A) Walk down the path. B)Move your way through the trees? [A/B]: ")
if d1 == "A":
print ("You begin to walk down the path.")
print (" As a Sidenote, during this adventure 'dice' will be thrown and the success of your chosen action")
print (" will be determined by the result.")
r1 = random.randint(0.0,10.0)
if 4 > r1 > 0.1:
print (" Your groggyness from waking means you reach the edge of the forest after nightfall.")
print (" You see that the path continues towards a small cottage, the lights are out and no smoke rises from the chimney.")
print (" Away from the cottage is a stable, where you can see a horse standing with its head outside the door")
d1a = input ("Do you want to: A) Approach the house. B) Approach the stable. [A/B]? : ")
if d1a == "A":
print ("You approach the cottage.")
elif d1a == "B":
print ("You approach the stables.")
else :
像这样的东西，使用你的代码，while循环已被注释：
# gather the input
# "while" is the loop statement, checking the condition and executing the code in the body of loop while the condition holds true
# obviously, "while True" will execute its body forever until "break" statement executes or you press Ctrl+C on keyboard
while True:
d1a = input ("Do you want to: A) Approach the house. B) Approach the stable. [A/B]? : ")
# check if d1a is equal to one of the strings, specified in the list
if d1a in ['A', 'B']:
# if it was equal - break from the while loop
break
# process the input
if d1a == "A":
print ("You approach the cottage.")
elif d1a == "B":
print ("You approach the stables.")
上面的示例只是如何完成该操作的示例。while 循环会一直要求键盘上的家伙输入"A"或"B"。然后你检查你的输入。
在实际代码中，您需要创建函数来捕获输入并进行所有花哨的检查。
在某些语言中，为了提高可读性，您有时会倾向于使用开关大小写结构而不是长 if-elif-else 语句。在 Python 中，没有 switch-case 语句，但您可以在字典中映射您的选择。函数也可以存储为变量。
def opt_a():
print("You approach the cottage.")
def opt_b():
print("You approach the stables.")
def invalid_opt():
print("Invalid choice")
options = {"A":["Approach the house",opt_a], "B":["Approach the stable",opt_b]}
for option in options:
print(option+") "+options.get(option)[0])
choise = input("Please make Your choise: ")
val = options.get(choise)
if val is not None:
action = val[1]
else:
action = invalid_opt
action()
No.Python 不是一种命令式语言;尽管它确实支持临时编程。（即：Python中没有GOTO）。
您应该使用函数和循环。
例：
while True:
d1a = input ("Do you want to: A) Approach the house. B) Approach the stable. [A/B]? : ")
if d1a == "A":
print ("You approach the cottage.")
elif d1a == "B":
print ("You approach the stables.")
elif dia == "Q":
break
这将（非常微不足道地）继续打印"你想：A）接近房子。B）接近马厩。[A/B]？并在您进入Q时停止。我将由您来继续这种代码结构，并提供更多逻辑以适应您想要的实现。
注意：以这种风格编写会很快变得困难和复杂，最终你会想要将代码拆分为函数、模块等。
# this code below welcomes the user
print ("hello and welcome to my python quiz,my name is brandon and i am the quiz master")
print ("please type your name")
your_name = input ()
your_name = str(your_name)
score = 0# this code set the veriable to zero
# this is the question
print ("Question 1")
print ("what is 50x10")
answer = input ()
answer =int(answer)
if answer == 500:
print ("good work")
score = score + 1
else:
print ("better luck next time")
score = score - 1
print ("Question 2")
print ("what is (5x10)-4x2")
answer = input ()
answer =int(answer)
if answer == 94:
print ("good work")
score = score + 1
else:
print ("better luck next time")
score = score - 1
print ("Question 3")
print ("what is 600000000x10")
answer = input ()
answer =int(answer)
if answer == 6000000000:
print ("good work")
score = score + 1
else:
print ("better luck next time")
score = score - 1
print ("Question 4")
print ("what is 600000000/10")
answer = input ()
answer =int(answer)
if answer == 60000000:
print ("good work")
score = score + 1
else:
print ("try again")
score = score - 1
print ("Question 5")
print ("what is 19x2-2")
answer = input ()
answer =int(answer)
if answer == 36:
print ("good work")
score = score + 1
else:
print ("try again")
score = score - 1
print ("Question 6")
print ("what is (8x4) x 9")
answer = input ()
answer =int(answer)
if answer == 288:
print ("good work")
score = score + 1
else:
print ("try again")
score = score - 1
print ("Question 7")
print ("what is 15 x4")
answer = input ()
answer =int(answer)
if answer == 60:
print ("good work")
score = score + 1
else:
print ("try again")
score = score - 1
print ("Question 8")
print ("what is 19 x9")
answer = input ()
answer =int(answer)
if answer == 171:
print ("good work")
score = score + 1
else:
print ("try again")
score = score - 1
print ("Question 9")
print ("what is 9 x9")
answer = input ()
answer =int(answer)
if answer == 81:
print ("good work")
score = score + 1
else:
print ("try again")
score = score - 1
print ("Question 10")
print ("what is 10 x10")
answer = input ()
answer =int(answer)
if answer == 171:
print ("good work")
score = score + 1
else:
print ("try again")
score = score - 1
print ("Question 10")
print ("what is 10 x10")
answer = input ()
answer =int(answer)
if answer == 171:
print ("good work")
score = score + 1
else:
print ("try again")
score = score - 1
print("Question 11")
print ("6+8x2: n
1.28 n
2.14 n
3.38 n
4.34 n"
answer =int (input (Menu))
if answer == 1.:
print ("well done")
elif answer == 2.:
print ("better luck next time")
elif answer == 3.:
print ("looser")
elif answer == 4.:
print ("go back to primary school and learn how to add")
print("Question 12")
print ("6194+10x2: n
1.12409 n
2.124081 n
3.14321 n
4.12408 n"
answer =int(input (Menu))
if answer == 1.:
print ("well done")
elif answer == 2.:
print ("better luck next time")
elif answer == 3.:
print ("looser")
elif answer == 4.:
print ("go back to primary school and learn how to add")
if score > 8:# this line tells the program if the user scored 2 points or over to print the line below
print("amazing your score is" + str(score))# this code tells the user that they have done well if they have got 2or more points or over
elif score < 4:
print ("good work your score is" + str(score))
else:
print ("better look next time your scor is" + str(score))
print("well done your score is " +str (score))#this print the users score
print("thank you for playing in the python maths quiz")