语法错误：输入错误 - Python
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Syntax error: bad input - Python
提问by Jd Baba
I have this code:
我有这个代码：
num = range(1,33)
num[0]=1
num[1]=2
for i in range(2,32):
num[i]=num[i-1]+num[i-2]
total=0
for i in range(0,32):
print num[i]
if num[i]%2==0:
total=total+num[i]
else:
num[i]=num[i+1]
I want to find the sum of the even numbers in the numarray. Can anyone suggest what I did wrong here ?
我想找到num数组中偶数的总和。谁能建议我在这里做错了什么？
采纳答案by karthikr
Indentation is very important in python
缩进在python中非常重要
if num[i]%2==0:
total=total+num[i]
else:
num[i]=num[i+1]
should be
应该
if num[i]%2==0:
total=total+num[i]
else:
num[i]=num[i+1]
Also, use consistent indentation e.g 4 spaces every where you have to introduce indentation.
此外，使用一致的缩进，例如在每个必须引入缩进的地方使用 4 个空格。
回答by Thanakron Tandavas
Alternatively:
或者：
total = sum([i for i in num if i % 2 == 0])
Sum( )will return the summation of a list.
[i for i in num if i % 2 == 0]is a List Comprehensions.
For example:
例如：
>> num = [1,2,3,4]
>> tmp = [i for i in num if i % 2 == 0]
>> print tmp
[2,4]
>> total = sum(tmp)
>> print total
6
