计算年度和月度利息

Question

interest = int(float(raw_input("Interest Rate: ")))
monintrate = int(float(( interest / 100.0 ) / 12))
annintrate = int(float(interest / 12))

print "Interest: ",interest
print "Mon Int Rate: ",monintrate
print "Ann Int Rate: ",annintrate

您好，我想将上述变量正确计算为小数，但无论出于何种原因我都无法正常工作。有人能指出我正确的方向吗？

以下是我的结果：

Interest: 5
Mon Int Rate: 0
Ann Int Rate: 0

谢谢

Answer 1

删除变量之前的int，以便获得小数

interest = float(raw_input("Interest Rate: "))
monintrate = float(( interest / 100.0 ) / 12)
annintrate = float(interest / 12)

Answer 2

你需要摆脱int

interest = float(raw_input("Interest Rate: "))
monintrate = round((interest / 100.0)/12, 4) """ will give 4 decimal places"""
annintrate = round((interest / 12), 4)       """ will give 4 decimal places"""

print "Interest: ",interest
print "Mon Int Rate: ",monintrate
print "Ann Int Rate: ",annintrate

给出以下内容：

Interest:  5.0
Mon Int Rate:  0.0042
Ann Int Rate:  0.41667

Answer 3

这样做

print month,"___","{:.2f}".format(monprnpaid),"___","{:.2f}".format(monintdue),"___","{:.2f}".format(loanbal)

谢谢大家