ValueError：具有基数10的int（）的无效文字无法弄清楚原因

3 回答

• 0

  改变这个：

  int(input("Enter Pennies: "))
  

  对此：

  pennies = input("Enter Pennies: ")
  

  Edited 我相信这只是一个错字，你应该为输入结果指定便士 .

  回复于 2024-04-27T18:06:48+08:00
• 1

  def main():
      pennies = get_input1("Enter pennies : ")
      nickels = get_input2("Enter nickels : ")
      dimes = get_input3("Enter dimes : ")
      quarters = get_input4("Enter quarters : ")
  
      print("You entered : ")
      print("\tPennies  : " , pennies)
      print("\tNickels  : " , nickels)
      print("\tDimes    : " , dimes)
      print("\tQuarters : " , quarters)
  
  
      total_value = get_total(pennies, nickels, dimes, quarters)
      dollars = get_dollars(pennies, nickels, dimes, quarters)
      left_over_cents = get_left_over_cents(pennies, nickels, dimes, quarters)
  
      print("Total = $", total_value, sep="")
      print("You have", dollars, "dollars and", left_over_cents, "cent(s)")
  
  def get_input1(pennies):
      pennies = int(input("Enter Pennies: "))
      if int(pennies) < 0:
          print('Error: money cannot be negative')
          pennies = int(input('Enter correct amount of pennies: '))
  
      return(pennies)
  
  def get_input2(nickels):
      nickels = int(input("Enter nickels: "))
      if int(nickels) < 0:
          print('Error: money cannot be negative')
          pennies = int(input('Enter correct amount of nickels: '))
  
      return(nickels)
  
  def get_input3(dimes):
      dimes = int(input("Enter dimes: "))
      if int(dimes) < 0:
          print('Error: money cannot be negative')
          pennies = int(input('Enter correct amount of dimes: '))
  
      return(dimes)
  
  def get_input4(quarters):
      quarters = int(input("Enter quarters: "))
      if int(quarters) < 0:
          print('Error: money cannot be negative')
          pennies = int(input('Enter correct amount of quarters: '))
  
      return(quarters)
  
  main()
  

  这将帮助您完成定义您的便士，镍币，硬币和四分之一 . 现在，您必须定义get_total，get_dollar和get_left_over_cents .

  你需要在int值前面有便士，这就是你收到错误的原因 . 然后你可以将便士的 Value 返还给主要货币 .

  希望这可以帮助！

  回复于 2024-04-27T18:06:48+08:00
• 0

  您的数据流向后 . 在main（）中，你调用get_input1来检索值，就像输入（）一样，但是如果我们看一下get_input1会：

  # Names its argument, which was a question, "pennies"
  def get_input1(pennies):
      # Asks a question, converts to int, and discards it
      int(input("Enter Pennies: "))
      if int(pennies) < 0:    # Converts pennies to int; but it was a question!
          print('Error: money cannot be negative')
          # This is the only place to alter pennies, but it doesn't return it
          pennies = int(input('Enter correct amount of pennies: '))
  

  看起来这曾经是重构的代码，用于处理每个函数调用的各种硬币，但它没有它需要的两个修改：一种改变它要求的方式，以及一种返回什么的方法回答是 . 请注意，函数参数（如get_input1中的便士）是局部变量;主要从未看到它的变化 .

  回复于 2024-04-27T18:06:48+08:00