不明白这个TypeError：无法连接'str'和'int'对象异常

Question

我在运行下面的代码时遇到错误：TypeError: cannot concatenate 'str' and 'int' objects。它涉及年，月和日是整数，并且引号内有引号。我的Python版本是2.7，因为我在没有管理员权限的工作计算机上工作，我无法更新Python。

import os

#input1 is the first date, input2 is the second date, with a 1 day
difference
yearinput1 = input("What's the start year?")
monthinput1 = input("What's the start month?")
dayinput1 = input("What's the start day?")
yearinput2 = input("What's the end year?")
monthinput2 = input("What's the end month?")
dayinput2 = input("What's the end day?")

print"sudo mam-list-usagerecords -s \" ", yearinput1, "-" , monthinput1, "-", dayinput1, " \" -e \" ", yearinput2, "-" + monthinput2, "-", dayinput2, " \" --format csv --full"

Answer 1

在您的打印声明中，您有：

"-" + monthinput2

monthinput2是一个int，而"-"是一个字符串。您可以将monthinput2转换为字符串：

"-" + str(monthinput2)