Python初学者.这个Python代码是否尽可能高效?
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互联网集市收集整理的这篇技术教程文章主要介绍了Python初学者.这个Python代码是否尽可能高效?,小编现在分享给大家,供广大互联网技能从业者学习和参考。文章包含2849字,纯文字阅读大概需要5分钟。
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这个问题/解决方案让我想到另一个相关的问题here – 帮助将不胜感激!
根据初步反馈更新了以下当前代码
我是Python的新手(这是我的第二个程序).我目前正在使用麻省理工学院的开放课件使用Python Academic Earth videos来介绍CS,我正在研究问题集1 Viewable Here.我创建了这个程序,在12个月内成功重建了“测试用例1”(不包括“结果”) “部分……仍在努力”但我的问题是,以下(我的)代码是否尽可能高效?当我没有必要时,我觉得我正在重复自己. :
原始代码:
balance = float(raw_input("Outstanding Balance: "))
interestRate = float(raw_input("Interest Rate: "))
minPayRate = float(raw_input("Minimum Monthly Payment Rate: "))
interestPaid = round((interestRate/12.0)*balance, 2)
minPayment = round(minPayRate*balance, 2)
principalPaid = round(minPayment-interestPaid, 2)
remainingBalance = round(balance-principalPaid, 2)
month = 1
while month < 12 :
if month > 1 :
balance = remainingBalance
interestPaid = round((interestRate/12.0)*balance, 2)
minPayment = round(minPayRate*balance, 2)
principalPaid = round(minPayment-interestPaid, 2)
remainingBalance = round(balance-principalPaid , 2)
month = month+1
print 'Month: ' + str(month)
print 'Minimum monthly payment: ' + str(minPayment)
print 'Principle paid: ' + str(principalPaid)
print 'Remaining balance: ' + str(remainingBalance)
现行守则
balance = float(raw_input("Outstanding Balance: "))
interestRate = float(raw_input("Interest Rate: "))
minPayRate = float(raw_input("Minimum Monthly Payment Rate: "))
for month in xrange(1, 12+1):
interestPaid = round(interestRate / 12.0 * balance, 2)
minPayment = round(minPayRate * balance, 2)
principalPaid = round(minPayment - interestPaid, 2)
remainingBalance = round(balance - principalPaid, 2)
print 'Month: %d' % (month,)
print 'Minimum monthly payment: %.2f' % (minPayment,)
print 'Principle paid: %.2f' % (principalPaid,)
print 'Remaining balance: %.2f' % (remainingBalance,)
balance = remainingBalance
如果您在此新代码中看到任何其他内容,请告诉我们!
非常感谢那些帮助我实现这一目标的人.
解决方法:
print "x: " + str(x)
应该替换为:
print "x:", x
这是打印的特例.
将循环更改为:
for month in xrange(1, 12+1):
删除第一个循环的检查,然后将余额设置为remainingBalance作为结束.
因为您手动增加月份,所以每次都打印错误的值.
如果你的效率和执行效率一样,那你就担心too soon了.如果你的意思是复制代码,你会在循环之前不必要地复制数学.结合以上内容:
balance = float(raw_input("Outstanding Balance: "))
interestRate = float(raw_input("Interest Rate: "))
minPayRate = float(raw_input("Minimum Monthly Payment Rate: "))
for month in xrange(1, 12+1):
interestPaid = round(interestRate / 12.0 * balance, 2)
minPayment = round(minPayRate * balance, 2)
principalPaid = round(minPayment - interestPaid, 2)
remainingBalance = round(balance - principalPaid, 2)
print 'Month:', month
print 'Minimum monthly payment:', minPayment
print 'Principle paid:', principalPaid
print 'Remaining balance:', remainingBalance
balance = remainingBalance
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