Python 整数转百分比

Question

我需要把每月付款转换成百分比，所以我想把范围从 [4, 5, 6, 7, 8] 改成 [0.04, 0.05, 0.06, 0.07, 0.08]。

你知道怎么做吗？这样还能从总付款中计算出来。

import math 

loanAmt=int(input("Enter the Amount (greater then 0) of the Loan: "))

numYears=int(input("Enter the number of years as an integer: "))

for monthlyRate in range(4,9):

   monthlyPayment = loanAmt * monthlyRate / (1 - math.pow(1 / (1 + monthlyRate), numYears * 12))

   totalPayment = monthlyPayment * numYears * 12
   print("{0:.0f}%".format(monthlyRate),'\t','$%.2f' %monthlyPayment,'\t','\t','$%.2f' %totalPayment)

Answer 1

或者你也可以使用一种叫做 列表推导式 的写法。

percent_rate = [rate/100.0 for rate in monthly_rate]
# where monthly_rate is the list of all ints like [4, 5, 6, 7, 8]

Answer 2

你可以使用这个：

for monthlyRate in (x/100.0 for x in range(4,9)):
    print monthlyRate

0.04
0.05
0.06
0.07
0.08