如何計算信用卡的固定月付款

Question

如何繼續下面的循環，直到找到mmp = 310？到目前爲止，我的代碼最遠的地方是mmp = 240。你認爲我應該多一個if聲明？

balance = 4213 
annualInterestRate = 0.2 
mir = annualInterestRate/12 
monthlyPaymentRate = 0.04 


rb = balance 
mmp = 0 
Month = 1 
while Month <= 12: 
    print('Month:' + str(Month)) 
    mmp = mmp + 10 
    print('Minimum monthly payment:' + str(mmp)) 
    ub = rb - mmp 
    rb = round(ub + (annualInterestRate/12 * ub), 2) 
    Month = Month + 1 
    print('Remaining balance:' + str(rb)) 
if rb > 0: 
    rb = balance 
    Month = 1 
    while Month <= 12: 
     print('Month:' + str(Month)) 
     mmp = mmp + 10 
     print('Minimum monthly payment:' + str(mmp)) 
     ub = rb - mmp 
     rb = round(ub + (annualInterestRate/12 * ub), 2) 
     Month = Month + 1 
     print('Remaining balance:' + str(rb)) 

else: 
    print('Lowest Payment:' + str(mmp) 

Answer 1

相反的while Month <= 12:，你可以使用while mmp < 310:，如果你只是想達到這個數字。或者while rb > 0:如果你想繼續循環，直到一切都付清。

如果循環在過去幾個月是一個要求（順便說一句，這是generally appreciated here if you mention that your question is homework），你可以添加一個外環多年：

year = 1 
while rb > 0: 
    month = 1 
    while month <= 12: 
     # do stuff 
     month = month + 1 
    year = year + 1