Question

我是python的新手，并尝试用＃34; Think Python＆＃34;

中的练习构建一个运行10k的计算器

我尝试做的是将输入时间分解为：43.12分为2个单独的数字...... 然后执行（43x60） - 它给出秒数，然后加上剩余的秒数+12 .. 给出准确的数字......

下面的

运行它，如果我将4312硬编码为一个整数 - 但是想要动态地接受它...我可以帮助我指出正确的方向

#python 10k calculator

import time

distance = 6.211180124223602
time = float(input("what was your time?"))
tenK = 10
mile = 1.61
minute = 60
sph = 0

def convertToMiles():
    global distance
    distance = tenK / mile
convertToMiles()
print("Distance equal to :",distance)


def splitInput():
    test = [int(char) for char in str(4312)]
    print(test)
splitInput()

Answer 1

如果您不立即将用户输入转换为float，则会更容易。字符串提供split函数，浮点数不提供。

>>> time = input("what was your time? ")
what was your time? 42.12
>>> time= time.split('.')
>>> time
['42', '12']
>>> time= int(time[0])*60+int(time[1])
>>> time
2532

Answer 2

当您在输入中询问时，您已将数字转换为浮点数;只需将其作为字符串接受，然后您就可以轻松地将其分成各个部分：

user_input = input('what was your time?')
bits = user_input.split('.') # now bits[0] is the minute part,
                             # and bits[1] (if it exists) is
                             # the seconds part
minutes = int(bits[0])
seconds = 0
if len(bits) == 2:
    seconds = int(bits[1])

total_seconds = minute*60+seconds

Answer 3

我希望用户输入格式为[hh:]mm:ss的字符串，然后使用类似：

的内容

instr = raw_input('Enter your time: [hh:]mm:ss')
fields = instr.split(':')
time = 0.0
for field in fields:
   yourtime *= 60
   yourtime += int(field)
print("Time in seconds", yourtime)

但是如果你真的需要时间，那么你可以使用time.strptime（）。

Answer 4

import re
time = raw_input("what was your time? ")
x=re.match(r"^(\d+)(?:\.(\d+))$",str(time))
if x:
    time= int(x.group(1))*60+int(x.group(2))
    print time
else:
    print "Time format not correct."

尝试这种方式。您也可以通过这种方式添加一些错误检查。

在python中拆分整数

4 个答案: