使用python将3个成本加在一起形成一个总成本

我对python还相当陌生，我正在接受大量的输入，就好像这是一张迷你假期的收据，并试图将所有三个类别相加，得出一个总数。我不断遇到无法连接'str'和'int'对象的问题，无论我做什么，我似乎都无法解决这个问题

def main():
    airfareCost = int(input ("Airfare Cost"))
    hotelCost = int(input ("Hotel Cost"))
    mealsCost = int(input ("Meals Cost"))
    Total = (int(airfareCost + hotelCost + mealsCost))
    print "Mini-vacation time!"
    print "Below lists the expenses for your trip to the Florida Keys."
    print " "
    print "  Item                Cost"
    print "  Airfare:            "+"$"+int(airfareCost)
    print "  Hotel:              "+"$"+hotelCost
    print "  Meals:              "+"$"+mealsCost
    print "  ---------------------------"
    print "  Total:              "+"$"+Total
    print "  Have a fantastic trip!"

main()

试试这个：

def main():
    airfareCost = int(input ("Airfare Cost"))
    hotelCost = int(input ("Hotel Cost"))
    mealsCost = int(input ("Meals Cost"))
    Total = int(airfareCost + hotelCost + mealsCost)
    print "Mini-vacation time!"
    print "Below lists the expenses for your trip to the Florida Keys.\n"
    print "  Item                Cost"
    print "  Airfare:            ${}".format(airfareCost)
    print "  Hotel:              ${}".format(hotelCost)
    print "  Meals:              ${}".format(mealsCost)
    print "  ---------------------------"
    print "  Total:              ${}".format(Total)
    print "  Have a fantastic trip!"

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您需要显式地将整数值转换为字符串

'somestring' + str(someinteger)

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您需要执行$+strmalscost。好的，谢谢，这似乎解决了连接问题，但现在当人们输入三个值时，总数只显示三个数字的组合，而没有实际相加/这是因为我猜您在输入时使用str，可能删除了int？您需要在当前代码中保持int，并在与字符串连接的位置使用str。当你需要一个int和一个STR时，你需要仔细考虑，你需要两者都在这里。我想我不应该改变我的3个输入的int值，谢谢！是的，这似乎奏效了，非常感谢：请投票/接受任何对你有帮助的答案。我一定会接受的，不过这会让我等一会儿。