Python 3+；：虽然循环继续要求用户输入费用，即使用户输入停止循环的按钮。

编辑：我能够让它通过循环，但现在代码一直在通过一个“输入费用”的请求运行，不管按下哪个按钮

如果需要完整的代码，以下是代码的顺序：

def getExpenses():
    userExpense = 0
    totalExpenses = 0
    moreExpenses = ""
    while moreExpenses != "y":
        userExpense = float(input("Enter an expense: "))
        totalExpenses = totalExpenses + userExpense
        moreExpenses = input("Do you have more expenses? Type y" +\
                             " to input more expenses, or any key for no: ")

    return totalExpenses

这是主模块-我仍在尝试调试问题所在的位置，因此我尚未完成部分程序：

##---Initializing Variable----------------------------------------------------------------------#
#-----------------------------------------------------------------------------------------------#
monthlyIncome=0
monthlyExpenses=0
totalExpenses=0

##---Introductory Statement: Welcome to the Program---------------------------------------------#
#-----------------------------------------------------------------------------------------------#
def intro():
    print("\n".join(["---------------------------------------------------------",
              "Hello and Welcome to the Budget Analyzer",
              "Get ready to find out how much money you'll have left $$$",
              "---------------------------------------------------------"]))
    return

##---The monthlyIncome mod. gets user input for income/mth to compare against expenses----------#
#-----------------------------------------------------------------------------------------------#
def getIncome(): 
    monthlyIncome=float(input("Please enter the amount of money you'll have for the month: "))
    return monthlyIncome

---

您的代码可以工作，但可能不是您想要的：

#---Run main module-----------------------------------------------------------------------------#
def main():
    intro()
    getIncome()
    getExpenses(monthlyIncome)

要停止循环，请按“y”

因此，就这一点而言，它完全按照锡上所说的去做。 然而，这有点不合逻辑：

系统会提示您一个问题“

您是否有更多费用”

”

如果您回答“

y

”（=是），它将停止。。。因此，您应该更改

=

到

=

并在循环之前将

morepenses

变量预设为

y

：

def getExpenses():
    userExpense = 0
    totalExpenses = 0
    moreExpenses = ""
    while moreExpenses != "y":
        userExpense = float(input("Enter an expense: "))
        totalExpenses = totalExpenses + userExpense
        moreExpenses = input("Do you have more expenses? Type y" +\
                             " to input more expenses, or any key for no: ")

    return totalExpenses

---

它调用intro（）的部分在哪里？我在上面的文章中添加了调用它的主模块。

def getExpenses():
    userExpense = 0
    totalExpenses = 0
    moreExpenses = "y"
    while moreExpenses == "y":
        userExpense = float(input("Enter an expense: "))
        totalExpenses = totalExpenses + userExpense
        moreExpenses = input("Do you have more expenses? Type y" +\
                             " to input more expenses, or any key for no: ")

    return totalExpenses