<p>我正在学习Python,但我被卡住了。我在找贷款支付金额。我目前有:</p>
<pre><code>def myMonthlyPayment(Principal, annual_r, n):
years = n
r = ( annual_r / 100 ) / 12
MonthlyPayment = (Principal * (r * ( 1 + r ) ** years / (( 1 + r ) ** (years - 1))))
return MonthlyPayment
n=(input('Please enter number of years of loan'))
annual_r=(input('Please enter the interest rate'))
Principal=(input('Please enter the amount of loan'))
</code></pre>
<p>但是,当我跑的时候,我会少跑一点。如果有人能指出我的错误,那就太好了。我使用的是python3.4。在</p>