Question

我正在尝试编写一个python脚本，它将采用一周的天数和输入的天数。它将返回一天。例如，如果今天是星期一，那么天数是2，天数是2，它应该返回类似的输出＆＃34; 2天后，它是星期三。我尝试了以下代码

# Take the user inputs -->
today = int(input('What number day is today?(1 for Sunday, 2 for Monday and so on...) --> '))
days_after = int(input('After how many days are you coming back?'))
days_extra = days_after % 7
final_temp=today + days_extra
# Assign days based on conditions -->
if final_temp > 7:
    final = final_temp-7
    final_day = 1+final
elif days_extra <= 7:
    final_day_o = today + days_extra
else:
    pass
#Print the Results -->
if final_day == 1 or final_day_o == 1:
    print('You\'ll come back on Sunday.')
elif final_day == 2 or final_day_o == 2:
    print('You\'ll come back on Monday.')
elif final_day == 3 or final_day_o == 3:
    print('You\'ll come back on Tuesday.')
elif final_day == 4 or final_day_o == 4:
    print('You\'ll come back on Wednesday.')
elif final_day == 5 or final_day_o == 5:
    print('You\'ll come back on Thursday.')
elif final_day == 6 or final_day_o == 6:
    print('You\'ll come back on Friday.')
elif final_day == 7 or final_day_o == 7:
    print('You\'ll come back on Saturday.')
else:
    pass

但是它给出了一个错误 -

NameError：name＆＃39; final_day＆＃39;没有定义很明显，这个名字是＃final_day＆＃39;未分配任何值。我该如何解决这个问题？

Answer 1

您未在elif else final_day = 0 # define final_day if first condition is not met final_day_o = 0 # define final_day_o if second condition is not met if final_temp > 7: final = final_temp-7 final_day = 1+final elif days_extra <= 7: final_day_o = today + days_extra else: pass条件之前完全声明变量。

{{1}}

Answer 2

变量未定义:)所以你没有定义变量这是正确的代码：

# Take the user inputs -->
today = int(input('What number day is today?(1 for Sunday, 2 for Monday and so on...) --> '))
days_after = int(input('After how many days are you coming back?'))
days_extra = days_after % 7
final_temp=today + days_extra
final_day = 0
final_day_o = 0
# Assign days based on conditions -->
if final_temp > 7:
    final = final_temp-7
    final_day = 1+final
elif days_extra <= 7:
    final_day_o = today + days_extra
else:
    pass
# Print the Results -->
if final_day == 1 or final_day_o == 1:
    print('You\'ll come back on Sunday.')
elif final_day == 2 or final_day_o == 2:
    print('You\'ll come back on Monday.')
elif final_day == 3 or final_day_o == 3:
    print('You\'ll come back on Tuesday.')
elif final_day == 4 or final_day_o == 4:
    print('You\'ll come back on Wednesday.')
elif final_day == 5 or final_day_o == 5:
    print('You\'ll come back on Thursday.')
elif final_day == 6 or final_day_o == 6:
    print('You\'ll come back on Friday.')
elif final_day == 7 or final_day_o == 7:
    print('You\'ll come back on Saturday.')
else:
    pass

您可以根据需要更改它，但必须在if语句

之前设置这些变量

NameError：name＆＃39; final_day＆＃39;未定义

2 个答案: