Question

我正在学习python，我正在挑战自己写一个小程序，询问用户汽车的基本价格，然后将基本价格保存到一个名为base的变量。它还有两个名为tax和license的变量，它们是百分比。因此，它获得基本价格，获得seven (7)价格的base％，并将其添加到基本价格。对于许可费等也是如此。

然而，我想知道的是它运行时： print "\nAfter taxes the price is: ", (base * tax / 100 + base) 如何将结果保存到另一个变量，以便下一行我不必写： print "\nAfter taxes and license fee the price is: ", (base*tax / 100)+(base*license /100) + base?重写它感觉非常多余，就像我浪费时间计算已经计算过的东西。

我想将第一个print行的结果保存到名为after_tax的变量中，以便我可以写： print "\nAfter taxes and license fee the price is: ", after_tax + (base*license /100)

（我希望第一个print命令也将数学计算的结果保存到一个名为after_tax的变量中，这样我就可以重用输出结果而不必重新输入整个计算来获得结果）。

以下是完整的代码：

#Car salesman calculations program.

base = int(raw_input("What is the base price of the car?" + "\n"))
tax = 7

license = 4

dealer_prep = 500

destination_charge = 1000


print "\nAfter taxes the price is: ", (base * tax / 100 + base)

print "\nAfter taxes and license fee the price is: ", (base*tax / 100)+(base*license /100) + base

print "\nAfter taxes and license fee and dealer prep the price is: ", (base*tax / 100)+(base*license /100) + base + dealer_prep

print "\nAfter taxes, license fees, dealer prep, and destination charge, the total price is: ", (base*tax / 100)+(base*license /100) + base + dealer_prep + destination_charge

raw_input("\nPress the enter key to close the window.")

Answer 1

在Python中，你不能在同一行中这样做。但你可以做的是首先定义after_tax变量，然后将其打印出来：

after_tax = base * tax / 100 + base
print "\nAfter taxes the price is: ", after_tax

Answer 2

你可以预先做好所有的计算。我建议给变量（a，b，c等）提供比我在这里更聪明的名字，但这足够说明。

a = (base * tax / 100)
b = (base*license /100)
c = a + b + base
d = c + dealer_prep
e = d + destination_charge

print "\nAfter taxes the price is: ", a + base
print "\nAfter taxes and license fee the price is: ", c
print "\nAfter taxes and license fee and dealer prep the price is: ", d
print "\nAfter taxes, license fees, dealer prep, and destination charge, the total price is: ", e

raw_input("\nPress the enter key to close the window.")

在Python中如何打印计算结果然后将结果保存到变量？

以下是完整的代码：

2 个答案: