为啥我收到 TypeError: unsupported operand type(s) for -: 'str' and 'int'

Posted 2023-03-16

【中文标题】为啥我收到 TypeError: unsupported operand type(s) for -: \'str\' and \'int\'

【英文标题】：why am I getting the TypeError: unsupported operand type(s) for -: 'str' and 'int'为什么我收到 TypeError: unsupported operand type(s) for -: 'str' and 'int'

【发布时间】：2021-03-27 11:06:00

【问题描述】：

我正在尝试制作一个打印日历的程序，但它也没有打印我想要的内容。

假设打印：

              Month                       
Sun  Mon  Tues  Wed  Thurs  Fri  Sat
            1    2     3     4    5    
 6    7     8    9    10    11   12 
13   14    15   16    17    18   19 
20   21    22   23    24    25   26 
27   28    29

而是打印：

              Month                       
Sun  Mon  Tues  Wed  Thurs  Fri  Sat
for x in range(start-1)] + [str(x) for x in range(1,days+1)] + [    for x in range(start-1)] + [str(x) for x in range(1,days+1)] + [    for x in range(start-1)] + [str(x) for x in range(1,days+1)] + [    for x in range(start-1)] + [str(x) for x in range(1,days+1)] + [    for x in range(start-1)] + [str(x) for x in range(1,days+1)] + [

这就是我所拥有的，有人可以帮忙解决问题吗？

while (month != "January" and month != "February" and month != "March" and month != "April" and month != "May" and month != "June" and month != "July" and month != "August" and month != "September" and month != "October" and month != "November" and month != "December"):
    print ("Thats not a correct response, please try again. ")
    month = input("Enter the name of the month: ")

week = input("Enter the day of the week the month begins (1-7): ")

while (week != "1" and week != "2" and week != "3" and week != "4" and week != "5" and week != "6" and week != "7"):
    print ("Thats not a correct response, please try again. ")
    week = input("Enter the day of the week the month begins (1-7): ")

numDays = input("Enter the number of days in the month: ")

while (numDays != "28" and numDays != "29" and numDays != "30" and numDays != "31"):
    print ("Thats not a correct response, please try again. ")
    numDays = input("Enter the number of days in the month: ")
           
name = month
days = numDays
start = week

c = [" for x in range(start-1)] + [str(x) for x in range(1,days+1)] + [" for x in range(35-(days+start-1))]

print(":^50s".format(name))
print("\t".join(["Sun","Mon","Tues","Wed","Thurs","Fri","Sat"]))
for x in range(0,len(c),7):
    print("\t".join(c[x:x+7]))

【问题讨论】：

如果这是一个直接的副本，那么您在声明 c 时会遇到语法错误。有多余的双引号。

那我该如何解决

如何修复它首先取决于您到底想要什么（或您想要做什么）。你希望你的第一个列表理解 ([" for x in range(start-1)]) 给你什么？ c 最终应该是什么？

【参考方案1】：

您需要在此处修复线路：

c = [" for x in range(start-1)] + [str(x) for x in range(1,days+1)]...

Python 正在寻找一个字符串，因为您使用了"。删除它们以及它们之后/之前的空间，您的代码应该可以工作！

编辑：

该行应如下所示：

c = [for x in range(start-1)] + [str(x) for x in range(1,days+1)] + [for x in range(35-(days+start-1))]

【讨论】：

但是它说语法无效