询问用户是否要再次重复相同的任务

Question

如果用户到达程序末尾，我希望他们得到一个提示，询问他们是否要重试。如果他们回答是，我想重新运行该程序。

import random
print("The purpose of this exercise is to enter a number of coin values") 
print("that add up to a displayed target value.\n") 
print("Enter coins values as 1-penny, 5-nickel, 10-dime,and 25-quarter.") 
print("Hit return after the last entered coin value.")
print("--------------------") 
total = 0 
final_coin = random.randint(1, 99)
print("Enter coins that add up to", final_coin, "cents, on per line") 
user_input = int(input("Enter first coin: "))
total = total + user_input

if user_input != 1 and user_input!=5 and user_input!=10 and user_input!=25:
   print("invalid input")

while total != final_coin:
    user_input = int(input("Enter next coin: "))
    total = total + user_input

if total > final_coin:
    print("Sorry - total amount exceeds", (final_coin))

if total < final_coin:
    print("Sorry - you only entered",(total))

if total== final_coin: 
    print("correct")

Answer 1

您可以将整个程序放在另一个while循环中，该循环询问用户是否要重试。

while True:
  # your entire program goes here

  try_again = int(input("Press 1 to try again, 0 to exit. "))
  if try_again == 0:
      break # break out of the outer while loop