如何在Python中将变量从函数传递到主代码中

Question

我的家庭作业是写一个Python程序，根据每小时工资和工作小时数计算工人的工资。到目前为止，我已经找到了以下代码

#Function
def calculatePay(rateHour,nHours):
    if nHours <= 40:
        pay = rateHour * nHours
    elif nHours < 60:
        pay = (rateHour * 40) + ((nHours - 40) * (rateHour * 1.5))
    else:
        pay = (rateHour * 40) + (20 * (rateHour * 1.5)) + ((nHours - 60) * (rateHour * 2.0))
    return pay

#Main Code
pay1 = calculatePay(30, 20)
print('You worked ', nHours, 'hours at a rate of ', ratehour, 'per hour, you will be paid $ ', pay1)
print()
pay2 = calculatePay(15.50, 50)
print('You worked ', nHours, 'hours at a rate of ', ratehour, 'per hour, you will be paid $ ', pay2)
print()
pay3 = calculatePay(11, 70.25)
print('You worked ', nHours, 'hours at a rate of ', ratehour, 'per hour, you will be paid $ ', pay3)
print()

rateHour = int(input('Enter the rate per hour: '))
nHours = int(input('Enter the number of hours worked: '))

pay4 = calculatePay(rateHour,nHours)
print('You worked ', nHours, 'hours at a rate of ', ratehour, 'per hour, you will be paid $ ', pay4)
print()

当我运行它时，我得到以下错误

Traceback (most recent call last):
  File "C:\Users\John\Desktop\Python Programming\JohnLissandrello_Homework3.py", line 15, in <module>
    print('You worked ', nHours, 'hours at a rate of ', ratehour, 'per hour, you will be paid $ ', pay1)
NameError: name 'nHours' is not defined

我相信这是因为我试图在主代码中使用局部变量rateHour和nHours

如何将这两个变量从函数传递到主代码中，以便将rateHour和NHhours与计算的工资一起输出

Answer 1

您已经将这些值传递给函数，也就是说，它们位于函数外部。问题是：他们没有名字

建议:

#Main Code
ratehour = 30
nHours = 20
pay1 = calculatePay(ratehour, nHours)
print('You worked ', nHours, 'hours at a rate of ', ratehour, 'per hour, you will be paid $ ', pay1)
print()

如果你看你的代码，你会发现很多重复的行。您可以再次将其放入方法中：

def printPay(ratehour, nHours):
    pay = calculatePay(ratehour,nHours)
    print('You worked ', nHours, 'hours at a rate of ', ratehour, 'per hour, you will be paid $ ', pay)
    print()

然后在循环中进行：

for rate, hours in  [(30,20), (15.5,50), (11,70.25)]:
    printPay(rate, hours)

Answer 2

@Thomas已经找到了答案，但还有几个问题：

第21行及；22您调用了int，但第14行和第17行使它看起来像是要使用浮点

第25行您的费率为每小时21&；24小时——Python对资本化非常挑剔