Question

我想出如何编码今天的日期，但是如果未来的日期大于整数6，我很难找到如何编码未来的日期。在他们输入的教科书中，今天的日期是0，所以它是星期日。但是自从星期日以来已经过了好几天，他们进入了31天。结果是＆＃34;今天是星期天，未来的日子是星期三＆＃34;。我不明白这是如何编码的。这是我到目前为止所做的。

todaysDate = eval(input("Enter an interger for today's day of the week from 0 - 6, Sunday is 0 and Saturday is 6."))


if todaysDate == 0:
    print("Today is Sunday")
elif todaysDate == 1:
    print("Today is Monday")
elif todaysDate == 2:
    print("Today is Tuesday")
elif todaysDate == 3:
    print("Today is Wednesday")
elif todaysDate == 4:
    print("Today is Thursday")
elif todaysDate == 5:
    print("Today is Friday")
elif todaysDate == 6:
    print("Today is Saturday")



daysElapsed = eval(input("Enter the number of days elapsed since today:"))

if daysElapsed == 1:
    print("Today is Sunday and the future day is Monday")

Answer 1

使用模数运算符%除以7并返回该运算的其余部分：

>>> 0 % 7
0
>>> 5 % 7
5
>>> 7 % 7
0
>>> 10 % 7
3

此外，使用int()代替eval()将用户的输入转换为整数。它更安全。

您可以将其与list放在一起来保存值而不是大if块：

days = ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday']

today = int(input("Enter an interger for today's day of the week from 0 - 6, Sunday is 0 and Saturday is 6."))
future = int(input("Enter the number of days elapsed since today:"))
print('Today is {} and the future day is {}.'.format(days[today],
                                                     days[(today+future)%7]))

Answer 2

除了Tigerhawk的回答（会发表评论，但不足以代表:(）

您可以通过将日期存储在列表中并按原样访问来最小化代码重复：

days = ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday']

todaysDate = int(input("Enter an interger for today's day of the week from 0 - 6, Sunday is 0 and Saturday is 6."))
print "Today is {}".format(days[todaysDate])

daysElapsed = int(input("Enter the number of days elapsed since today:"))
print "Today is Sunday and the future day is {}".format(days[daysElapsed % 7])

绝对不要使用eval，因为每当有人把它写在SO上时，它就会被抨击;）哦，它不安全或什么的。

Answer 3

  d = {0:"Saturday",1:"Sunday",2:"Monday",3:"Tuesday",4:"Wednesday",5:"Thursday",6:"Friday"}

    n = int(input("Enter today's day number : "))

    w = int(input("Enter the number of days after today : "))

    s = n+w

if s<=6 and s>0:

print("Today is",d[n],"and the future day is",d[n])

    elif s>6:

print("Today is",d[n],"and the future day is",d[s%7])

Answer 4

此处(daysElapsed+todaysDate) % 7为您提供未来日期的价值

def future(day):
    if day == 0:
        print("future is Sunday")
    elif day == 1:
        print("future is Monday")
    elif day == 2:
        print("future is Tuesday")
    elif day == 3:
        print("future is Wednesday")
    elif day == 4:
        print("future is Thursday")
    elif day == 5:
        print("future is Friday")
    elif day == 6:
        print("future is Saturday")

todaysDate = int(input("Enter an interger for today's day of the week from 0 - 6, Sunday is 0 and Saturday is 6."))


if todaysDate == 0:    
    print("Today is Sunday")
elif todaysDate == 1:
    print("Today is Monday")
elif todaysDate == 2:
    print("Today is Tuesday")
elif todaysDate == 3:
    print("Today is Wednesday")
elif todaysDate == 4:
    print("Today is Thursday")
elif todaysDate == 5:
    print("Today is Friday")
elif todaysDate == 6:
    print("Today is Saturday")


daysElapsed = int(input("Enter the number of days elapsed since today:"))
future((daysElapsed+todaysDate) % 7)

PYTHON：输入今天之后未来一天的天数，并显示一周的未来日期

4 个答案: