Question

好的，所以我认为我对这种方式的想法太多了。剩下的代码就是我想要的（它做了我想要的事情），但是我似乎无法弄清楚如何计算分钟数。因此，基本上，我应该从用户那里获得“行驶里程”和“每小时英里”。然后，我的程序应该确定在两行中以小时+分钟为单位的距离要花费多长时间（例如，一行上的“小时：”，另一行上的“分钟：”。我有“小时”想通了，但我想不通几分钟，我觉得这真的很简单，我只是想念它。

print("\nTravel Time Calculator")

miles = float(input("Enter Miles: "))
milesPh = float(input("Enter Miles Per Hour: "))

print("\nEstimated Travel Time")

if miles <= 0:
    print("Miles must be greater than zero. Please try again.")
elif milesPh <= 0:
    print("Miles per hour must be greater than zero. Please try again.")
else:
    # calculate and display travel time
    hours = round(miles / milesPh)
    print("Hours: " + str(hours))
    minutes = round()
    print("Minutes: " + str(minutes))

Answer 1

尝试一下：

print("\nTravel Time Calculator")

miles = float(input("Enter Miles: "))
milesPh = float(input("Enter Miles Per Hour: "))

print("\nEstimated Travel Time")

if miles <= 0:
    print("Miles must be greater than zero. Please try again.")
elif milesPh <= 0:
    print("Miles per hour must be greater than zero. Please try again.")
else:
    # calculate and display travel time
    hours = int(miles / milesPh)
    print("Hours: " + str(hours))
    minutes = ((miles / milesPh)*60) % 60
    print("Minutes: " + str(minutes))

输出

Travel Time Calculator
Enter Miles: 20
Enter Miles Per Hour: 12

Estimated Travel Time
Hours: 1
Minutes: 40.0

Answer 2

您可以通过潜水miles / milesPh来轻松获得总时间。您的问题是您将其四舍五入还为时过早。

假装miles / milesPh = 5.5。那是五个半小时。如果立即将其四舍五入，则会损失最后一个半小时。

因此，基本上，您必须具有一些系统来获取分钟数，之前您要舍入小时数。有两种直观的方法可以解决此问题：

（1）计算其引用的分钟数，并基于该分钟数来计算小时数：

total_minutes = (miles / milesPh) * 60  # total time in minutes
hours = total_minutes // 60             # integer division by 60 (drop the remainder)
minutes = int(total_minutes) % 60       # remainder after integer division by 60

（2）分别计算小时数和分钟数：

total_time = miles / milesPh              # total time in hours
hours = int(total_time)                   # the integer part of total time is hours
minutes = int((total_time - hours) * 60)  # the decimal part of total time becomes minutes

我错过了什么时间？

2 个答案: