类型错误：Float不是callab

Question

代码只给出了偿还贷款的月数。在

import sys

loanAmt = input("enter the amount of loan you want : ")
r = input("enter the rate of interest : ")
numOfPayments = input("enter number of payments : ")
month = loanAmt ( r * (1+numOfPayments) / ((1+r) * (numOfPayments-1)))

print(month)

错误：

^{pr2}$

Answer 1

loanAmt是一个float，您试图调用它：

month = loanAmt ( ... )

也许你想用括号内表达式的结果乘以这个值？如果是这样，则缺少*：

^{pr2}$

整行应该是：

month = loanAmt * (r * (1 + numOfPayments) / ((1 + r) * (numOfPayments - 1)))