你如何在python中添加变量的值？
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how do you add the values of variables in python?
提问by user2007306
I am trying to add the values of variables on python but it doesn't seem to work.
我正在尝试在 python 上添加变量的值，但它似乎不起作用。
I want to try and add the values of the variables together even if the value is either True or False: please - can anyone help?
即使值是 True 或 False，我也想尝试将变量的值加在一起：拜托 - 任何人都可以帮忙吗？
final=0
print ("welcome to my binary converter")
print("first number is the smallest value")
print ("please enter a 0 or a 1 five times")
in1 = input("number 1 please")
if in1 == 1:
final=final+1
elif in1 == 0:
final=final+0
elif ValueError
print("please enter a 1 or a 0")
in2 = input("number 2 please")
if in2 == 1:
final=final+2
elif in2 == 0:
final=final+0
elif ValueError
print("please enter a 1 or a 0")
in3 = input("number 3 please")
if in3 == 1:
final=final+4
elif in3 == 0:
final=final+0
elif ValueError
print("please enter a 1 or a 0")
in4 = input("number 4 please")
if in4 == 1:
final=final+8
elif in4 == 0:
final=final+0
elif ValueError
print("please enter a 1 or a 0")
in5 = input("number 5 please")
if in5 == 1:
final=final+16
elif in5 == 0:
final=final+0
elif ValueError
print("please enter a 1 or a 0")
print(final)
And I have tried looking on this website, python books, help online, python teacher, etc.
我试过在这个网站上查找，python 书籍，在线帮助，python 老师等。
Also, I have version 3.3.0 if that helps.
另外，如果有帮助，我有 3.3.0 版。
Jacob
雅各布
welcome to my binary converter
欢迎使用我的二进制转换器
first number is the smallest value
第一个数字是最小值
please enter a 0 or a 1 five times
请输入 0 或 1 五次
number 1 please1
请 1 号 1
please enter a 1 or a 0
请输入 1 或 0
number 2 please0
2号请0
please enter a 1 or a 0
请输入 1 或 0
number 3 please0
3号请0
please enter a 1 or a 0
请输入 1 或 0
number 4 please1
4号请1
please enter a 1 or a 0
请输入 1 或 0
number 5 please1
请 5 号 1
please enter a 1 or a 0
请输入 1 或 0
0
0
it seems to not change the value of final
它似乎没有改变 final 的值
采纳答案by TerryA
You can only add variables together if both variables are either an integer or a string, but not a boolean (well, you kinda can but it's not effective). For example:
如果两个变量都是整数或字符串，而不是布尔值，则只能将变量添加在一起（好吧，您可以，但它无效）。例如：
>>> var = 1
>>> var2 = 4
>>> var + var2
5
>>> stringvar = 'Hello '
>>> stringvar2 = 'world.'
>>> stringvar + stringvar2
'Hello world.'
>>> boolean1 = True
>>> boolean2 = False
>>> boolean1 + boolean2
1
The reason that works is because:
有效的原因是：
>>> True == 1
True
>>> False == 0
True
EDIT:
编辑：
It seems you have added in more code, so I'll show you what you're doing wrong.
看来您添加了更多代码，所以我会告诉您您做错了什么。
The reason you're getting a Syntax Error is because you have elif ValueError. This doesn't work. First, there isn't even a ValueError, there can't be as you have an input(). If you want to check whether a number is not 0 or 1, do this:
您收到语法错误的原因是因为您有elif ValueError. 这不起作用。首先，甚至没有 ValueError，因为你有一个 input()，所以不可能。如果要检查数字是不是 0 或 1，请执行以下操作：
in1 = input("number 1 please")
if in1 == 1:
final += 1 # I've also changed this. final += 1 is the same as final = final + 1
elif in1 == 0:
final += 0
elif in1 != 1 or in1 != 0:
print("please enter a 1 or a 0")
I highly suggest reading over some python tutorials. This is some basic syntax.
我强烈建议阅读一些 Python 教程。这是一些基本的语法。
