我有一个数学测验程序。有人告诉我将代码移入函数，然后由主列表调用这些函数。您如何创建函数？
我尝试将它们放入函数中，但是随后我的变量出现错误。 以下是该代码：
import random
def welcome():
level = 0
rounds = 0
print("Welcome to the math quiz. To get started you will need to select a level.")
level = int(input("Press 1 for Addition, 2 for Subtraction, 3 for Multiplacation, 4 for Division, and then press the 'Enter' key. "))
def random():
number_one = random.randrange(1,10)
number_two = random.randrange(1,10)
def levels():
if level == 1:
solution = number_one + number_two
print("What is", number_one, "plus", number_two, "?")
user_ans = int(input())
elif level == 2:
solution = number_one - number_two
print("What is", number_one, "minus", number_two, "?")
user_ans = int(input())
elif level == 3:
solution = number_one * number_two
print("What is", number_one, "times by", number_two, "?")
user_ans = int(input())
elif level == 4:
solution = number_one / number_two
print("What is", number_one, "divided by", number_two, "?")
user_ans = int(input())
def checker():
if user_ans == solution:
print("Correct")
number_one = random.randrange(1,10)
number_two = random.randrange(1,10)
rounds = rounds + 1
else:
print("Try again")
welcome()
random()
while rounds < 10:
levels()
checker()
print("Thanks for playing")
不用担心处理错误的数字/字符或拼写错误的所有问题，我需要修复一些东西以显示对老师的改进。
这是原始的工作代码：
import random
level = 0
rounds = 0
print("Welcome to the math quiz. To get started you will need to select a level.")
level = int(input("Press 1 for Addition, 2 for Subtraction, 3 for Multiplacation, 4 for Division, and then press the 'Enter' key. "))
number_one = random.randrange(1,10)
number_two = random.randrange(1,10)
while rounds < 10:
if level == 1:
solution = number_one + number_two
print("What is", number_one, "plus", number_two, "?")
user_ans = int(input())
elif level == 2:
solution = number_one - number_two
print("What is", number_one, "minus", number_two, "?")
user_ans = int(input())
elif level == 3:
solution = number_one * number_two
print("What is", number_one, "times by", number_two, "?")
user_ans = int(input())
elif level == 4:
solution = number_one / number_two
print("What is", number_one, "divided by", number_two, "?")
user_ans = int(input())
if user_ans == solution:
print("Correct")
number_one = random.randrange(1,10)
number_two = random.randrange(1,10)
rounds = rounds + 1
else:
print("Try again")
print("Thanks for playing")
如何使我的代码仍然可以正常使用，还可以使用函数。
答案 0 :(得分：1)
import random
def choose_level():
''' Returns the level as an integer '''
print("Welcome to the math quiz. To get started you will need to select a level.")
return int(input("Press 1 for Addition, 2 for Subtraction, 3 for Multiplication, 4 for Division, and then press the 'Enter' key. "))
def set_randoms():
''' Returns the numbers as a tuple '''
number_one = random.randrange(1,10)
number_two = random.randrange(1,10)
return (number_one, number_two)
def solve(level, randoms):
rounds = 0
# sets your number_one and number_two to the input tuple
number_one, number_two = randoms
while rounds < 10:
if level == 1:
solution = number_one + number_two
print("What is", number_one, "plus", number_two, "?")
user_ans = int(input())
elif level == 2:
solution = number_one - number_two
print("What is", number_one, "minus", number_two, "?")
user_ans = int(input())
elif level == 3:
solution = number_one * number_two
print("What is", number_one, "times by", number_two, "?")
user_ans = int(input())
elif level == 4:
solution = number_one / number_two
print("What is", number_one, "divided by", number_two, "?")
user_ans = int(input())
if user_ans == solution:
print("Correct")
number_one = random.randrange(1,10)
number_two = random.randrange(1,10)
rounds = rounds + 1
else:
print("Try again")
# when done solving send your thanks message
print("Thanks for playing")
def main():
# first get your level and set it to the function
# this will make the "return" be set as level
level = choose_level()
# do the same for randoms
randoms = set_randoms()
# start your solve but send level and randoms as inputs to be used
# in the function
solve(level, randoms)
if __name__ == "__main__": # this is common for python files and means
main() # to run the main() function if this file is not
# an import (ie this file is being ran directly
# as the __main__ file
答案 1 :(得分：0)
有关更多说明，请参见下面的代码。
import random
def welcome():
print("Welcome to the math quiz. To get started you will need to select a level.")
level = int(input("Press 1 for Addition, 2 for Subtraction, 3 for Multiplacation, 4 for Division, and then press the 'Enter' key. "))
return level # Send level back to main function.
def random_numbers():
return (random.randrange(1,10), random.randrange(1,10)) # Return the two numbers in a tuple.
def next_round(number_one, number_two, rounds):
if level == 1:
solution = number_one + number_two
print("What is", number_one, "plus", number_two, "?")
user_ans = int(input())
elif level == 2:
solution = number_one - number_two
print("What is", number_one, "minus", number_two, "?")
user_ans = int(input())
elif level == 3:
solution = number_one * number_two
print("What is", number_one, "times by", number_two, "?")
user_ans = int(input())
elif level == 4:
solution = number_one / number_two
print("What is", number_one, "divided by", number_two, "?")
user_ans = int(input())
if user_ans == solution:
print("Correct")
number_one = random.randrange(1,10)
number_two = random.randrange(1,10)
rounds = rounds + 1
else:
print("Try again")
return rounds
def goodbye():
print("Thanks for playing")
if __name__=="__main__": # Main function, runs only when program is run from terminal.
level = welcome()
rounds = 0
while rounds < 10:
rounds = next_round(*random_numbers(), rounds) # Unpack random numbers and send to next_round
goodbye()