Question

我在高中学习11年级的计算机科学，我刚开始用Python学习。我应该创建一个名为computepay的函数，它会询问用户他们的姓名，工资和当周的工作时间，并自动计算总数，包括任何加班时间，而不包括错误输入时的错误。我为所有输入创建了不同的函数，但当我将它全部插入我的computepay函数时，它会告诉我：

TypeError：float（）参数必须是字符串或数字

def mainloop():  #Creating a loop so it doesn't error out.
    response = input('Make another calculation?[y/n]')  #inputing loop

    if response == 'n':   #creating input for n
        return

    if response == 'y':
        computepay()
    else:
        print("\n")
        print ("Incorrect input. .")
        mainloop()
def getname():
    name = input ("What's your name?")  #input of name

def getwage():
    wage = input ("Hello there! How much money do you make per hour?") #input
    try:
        float(wage)  #Making it so it does not error out when a float
    except:
            print ("Bad Input")
            getwage()

def gethours():
    hours = input ("Thanks, how many hours have you worked this week?")
    try:
            float(hours)  #Making it so it does not error out when a float
    except:
            print("Bad Input")
            gethours()

def computepay():
    name = getname()
    wage = getwage()
    hours = gethours()

    if float(hours) > float(40):
            newhours = float(hours) - float (40)  #figuring out the amount of overtime hours the person has worked
            newwage = float (wage) * float (1.5)  #figuring out overtime pay
            overtimepay = float (newwage) * float (newhours)  #calculating overtime total
            regularpay = (float(40) * float (wage)) + overtimepay  #calculating regular and overtime total.

            print (name,",you'll have made $",round(regularpay,2),"this week.")
    else:
            total = float(wage) * float(hours)
            print (name,",you'll have made $",round (total,2),"this week.")

    mainloop()  #creating the loop.

#-------------------------------------------------------------------------------

computepay()

Answer 1

这些功能都没有返回任何内容

name = getname()    
wage = getwage()    
hours = gethours()

所以他们最终都成为None

试试这个

def getname():
    return input("What's your name?")  # input of name

def getwage():
    wage = input("Hello there! How much money do you make per hour?")  # input
    return float(wage)

def gethours():
    hours = input("Thanks, how many hours have you worked this week?")
    return float(hours)

Answer 2

错误消息告诉您的是某处（在您未向我们展示的错误消息部分中报告的行号上）您正在调用float并且给它一个既不是数字也不是字符串的参数（即输入）。

你能追踪到这发生的地方吗？

提示：任何不返回任何内容的Python函数（带有return关键字）都会隐式返回None（既不是字符串也不是数字）。

TypeError：float（）参数必须是字符串或数字

2 个答案: